./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7 --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 be72ada7daf51b9672b82550c90021fecf4891e35726a3813c73070b244ac267 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:48:37,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:48:37,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:48:37,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:48:37,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:48:37,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:48:37,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:48:37,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:48:37,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:48:37,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:48:37,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:48:37,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:48:37,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:48:37,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:48:37,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:48:37,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:48:37,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:48:37,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:48:37,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:48:37,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:48:37,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:48:37,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:48:37,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:48:37,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:48:37,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:48:37,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:48:37,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:48:37,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:48:37,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:48:37,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:48:37,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:48:37,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:48:37,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:48:37,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:48:37,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:48:37,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:48:37,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:48:37,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:48:37,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:48:37,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:48:37,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:48:37,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:48:37,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:48:37,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:48:37,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:48:37,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:48:37,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:48:37,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:48:37,733 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:48:37,733 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:48:37,733 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:48:37,734 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:48:37,735 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:48:37,735 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:48:37,735 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:48:37,735 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:48:37,736 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:48:37,736 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:48:37,736 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:48:37,736 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:48:37,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:48:37,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:48:37,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:48:37,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:48:37,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:48:37,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:48:37,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:48:37,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:48:37,740 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:48:37,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:48:37,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:48:37,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:48:37,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:48:37,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:48:37,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:48:37,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:48:37,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:48:37,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:48:37,743 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:48:37,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:48:37,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:48:37,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:48:37,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:48:37,743 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_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be72ada7daf51b9672b82550c90021fecf4891e35726a3813c73070b244ac267 [2021-11-25 17:48:37,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:48:38,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:48:38,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:48:38,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:48:38,016 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:48:38,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c [2021-11-25 17:48:38,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/02f27106d/a8aaa0f815d94ba183eb4ac9859ad0b8/FLAG8419fed33 [2021-11-25 17:48:38,614 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:48:38,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c [2021-11-25 17:48:38,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/02f27106d/a8aaa0f815d94ba183eb4ac9859ad0b8/FLAG8419fed33 [2021-11-25 17:48:38,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/02f27106d/a8aaa0f815d94ba183eb4ac9859ad0b8 [2021-11-25 17:48:38,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:48:38,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:48:38,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:48:38,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:48:38,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:48:38,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:48:38" (1/1) ... [2021-11-25 17:48:38,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37318bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:38, skipping insertion in model container [2021-11-25 17:48:38,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:48:38" (1/1) ... [2021-11-25 17:48:38,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:48:38,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:48:39,357 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_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c[74369,74382] [2021-11-25 17:48:39,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:48:39,407 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:48:39,574 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_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c[74369,74382] [2021-11-25 17:48:39,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:48:39,593 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:48:39,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39 WrapperNode [2021-11-25 17:48:39,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:48:39,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:48:39,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:48:39,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:48:39,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,704 INFO L137 Inliner]: procedures = 31, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 792 [2021-11-25 17:48:39,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:48:39,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:48:39,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:48:39,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:48:39,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:48:39,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:48:39,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:48:39,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:48:39,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (1/1) ... [2021-11-25 17:48:39,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:48:39,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:48:39,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:48:39,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:48:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:48:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:48:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:48:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:48:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:48:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:48:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:48:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:48:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:48:40,073 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:48:40,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:48:40,096 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 17:48:42,504 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-25 17:48:42,504 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-25 17:48:42,505 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:48:42,892 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:48:42,892 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 17:48:42,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:42 BoogieIcfgContainer [2021-11-25 17:48:42,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:48:42,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:48:42,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:48:42,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:48:42,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:48:38" (1/3) ... [2021-11-25 17:48:42,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c33abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:48:42, skipping insertion in model container [2021-11-25 17:48:42,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:48:39" (2/3) ... [2021-11-25 17:48:42,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c33abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:48:42, skipping insertion in model container [2021-11-25 17:48:42,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:42" (3/3) ... [2021-11-25 17:48:42,907 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-1.c [2021-11-25 17:48:42,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:48:42,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:48:42,978 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:48:42,988 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 [2021-11-25 17:48:42,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:48:43,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 1.7592592592592593) internal successors, (190), 109 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 17:48:43,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:48:43,036 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] [2021-11-25 17:48:43,037 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:48:43,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:48:43,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1595791018, now seen corresponding path program 1 times [2021-11-25 17:48:43,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:48:43,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835117435] [2021-11-25 17:48:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:48:43,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:48:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:48:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:48:43,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:48:43,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835117435] [2021-11-25 17:48:43,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835117435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:48:43,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:48:43,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:48:43,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828753785] [2021-11-25 17:48:43,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:48:43,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:48:43,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:48:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:48:43,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:48:43,850 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 1.7592592592592593) internal successors, (190), 109 states have internal predecessors, (190), 0 states have call successors, (0), 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 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:45,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:48:46,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:48:46,572 INFO L93 Difference]: Finished difference Result 323 states and 558 transitions. [2021-11-25 17:48:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:48:46,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-11-25 17:48:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:48:46,586 INFO L225 Difference]: With dead ends: 323 [2021-11-25 17:48:46,586 INFO L226 Difference]: Without dead ends: 209 [2021-11-25 17:48:46,589 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 [2021-11-25 17:48:46,593 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 128 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:48:46,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 294 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 244 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 17:48:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-25 17:48:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 133. [2021-11-25 17:48:46,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.5681818181818181) internal successors, (207), 132 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 207 transitions. [2021-11-25 17:48:46,640 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 207 transitions. Word has length 29 [2021-11-25 17:48:46,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:48:46,640 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 207 transitions. [2021-11-25 17:48:46,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 207 transitions. [2021-11-25 17:48:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 17:48:46,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:48:46,643 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] [2021-11-25 17:48:46,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:48:46,643 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:48:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:48:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash 163756668, now seen corresponding path program 1 times [2021-11-25 17:48:46,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:48:46,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195636283] [2021-11-25 17:48:46,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:48:46,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:48:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:48:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:48:46,954 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:48:46,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195636283] [2021-11-25 17:48:46,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195636283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:48:46,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:48:46,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:48:46,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056887648] [2021-11-25 17:48:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:48:46,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:48:46,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:48:46,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:48:46,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:48:46,961 INFO L87 Difference]: Start difference. First operand 133 states and 207 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:48,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:48:49,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:48:49,318 INFO L93 Difference]: Finished difference Result 286 states and 445 transitions. [2021-11-25 17:48:49,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:48:49,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2021-11-25 17:48:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:48:49,321 INFO L225 Difference]: With dead ends: 286 [2021-11-25 17:48:49,321 INFO L226 Difference]: Without dead ends: 155 [2021-11-25 17:48:49,322 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 [2021-11-25 17:48:49,324 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:48:49,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 325 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:48:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-25 17:48:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 143. [2021-11-25 17:48:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.5845070422535212) internal successors, (225), 142 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 225 transitions. [2021-11-25 17:48:49,340 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 225 transitions. Word has length 30 [2021-11-25 17:48:49,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:48:49,340 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 225 transitions. [2021-11-25 17:48:49,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 225 transitions. [2021-11-25 17:48:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 17:48:49,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:48:49,343 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] [2021-11-25 17:48:49,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:48:49,343 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:48:49,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:48:49,344 INFO L85 PathProgramCache]: Analyzing trace with hash -196293331, now seen corresponding path program 1 times [2021-11-25 17:48:49,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:48:49,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850267586] [2021-11-25 17:48:49,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:48:49,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:48:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:48:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:48:49,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:48:49,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850267586] [2021-11-25 17:48:49,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850267586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:48:49,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:48:49,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:48:49,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023394365] [2021-11-25 17:48:49,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:48:49,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:48:49,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:48:49,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:48:49,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:48:49,596 INFO L87 Difference]: Start difference. First operand 143 states and 225 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:51,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:48:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:48:52,062 INFO L93 Difference]: Finished difference Result 376 states and 586 transitions. [2021-11-25 17:48:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:48:52,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2021-11-25 17:48:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:48:52,065 INFO L225 Difference]: With dead ends: 376 [2021-11-25 17:48:52,065 INFO L226 Difference]: Without dead ends: 245 [2021-11-25 17:48:52,067 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 [2021-11-25 17:48:52,068 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 123 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:48:52,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 225 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 233 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:48:52,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-11-25 17:48:52,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 152. [2021-11-25 17:48:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.5562913907284768) internal successors, (235), 151 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 235 transitions. [2021-11-25 17:48:52,088 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 235 transitions. Word has length 40 [2021-11-25 17:48:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:48:52,088 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-11-25 17:48:52,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 235 transitions. [2021-11-25 17:48:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 17:48:52,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:48:52,091 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] [2021-11-25 17:48:52,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:48:52,091 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:48:52,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:48:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash 616535959, now seen corresponding path program 1 times [2021-11-25 17:48:52,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:48:52,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729001627] [2021-11-25 17:48:52,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:48:52,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:48:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:48:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:48:52,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:48:52,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729001627] [2021-11-25 17:48:52,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729001627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:48:52,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:48:52,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:48:52,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324617523] [2021-11-25 17:48:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:48:52,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:48:52,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:48:52,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:48:52,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:48:52,256 INFO L87 Difference]: Start difference. First operand 152 states and 235 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:54,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:48:54,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:48:54,725 INFO L93 Difference]: Finished difference Result 385 states and 594 transitions. [2021-11-25 17:48:54,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:48:54,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-11-25 17:48:54,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:48:54,727 INFO L225 Difference]: With dead ends: 385 [2021-11-25 17:48:54,728 INFO L226 Difference]: Without dead ends: 245 [2021-11-25 17:48:54,729 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 [2021-11-25 17:48:54,730 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 121 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:48:54,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 224 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 234 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:48:54,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-11-25 17:48:54,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 153. [2021-11-25 17:48:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.5394736842105263) internal successors, (234), 152 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2021-11-25 17:48:54,744 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 41 [2021-11-25 17:48:54,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:48:54,745 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2021-11-25 17:48:54,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2021-11-25 17:48:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-25 17:48:54,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:48:54,748 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] [2021-11-25 17:48:54,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:48:54,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:48:54,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:48:54,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1519680189, now seen corresponding path program 1 times [2021-11-25 17:48:54,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:48:54,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254269334] [2021-11-25 17:48:54,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:48:54,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:48:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:48:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:48:54,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:48:54,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254269334] [2021-11-25 17:48:54,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254269334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:48:54,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:48:54,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:48:54,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615815173] [2021-11-25 17:48:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:48:54,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:48:54,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:48:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:48:54,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:48:54,959 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:56,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:48:57,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:48:57,407 INFO L93 Difference]: Finished difference Result 386 states and 591 transitions. [2021-11-25 17:48:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:48:57,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-25 17:48:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:48:57,410 INFO L225 Difference]: With dead ends: 386 [2021-11-25 17:48:57,411 INFO L226 Difference]: Without dead ends: 245 [2021-11-25 17:48:57,411 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 [2021-11-25 17:48:57,412 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 119 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:48:57,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 224 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 234 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:48:57,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-11-25 17:48:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 154. [2021-11-25 17:48:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.522875816993464) internal successors, (233), 153 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 233 transitions. [2021-11-25 17:48:57,423 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 233 transitions. Word has length 42 [2021-11-25 17:48:57,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:48:57,424 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 233 transitions. [2021-11-25 17:48:57,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:57,424 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 233 transitions. [2021-11-25 17:48:57,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-25 17:48:57,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:48:57,426 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] [2021-11-25 17:48:57,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:48:57,427 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:48:57,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:48:57,427 INFO L85 PathProgramCache]: Analyzing trace with hash -933602767, now seen corresponding path program 1 times [2021-11-25 17:48:57,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:48:57,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217246430] [2021-11-25 17:48:57,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:48:57,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:48:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:48:57,573 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:48:57,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:48:57,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217246430] [2021-11-25 17:48:57,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217246430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:48:57,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:48:57,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:48:57,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099495560] [2021-11-25 17:48:57,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:48:57,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:48:57,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:48:57,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:48:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:48:57,575 INFO L87 Difference]: Start difference. First operand 154 states and 233 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:48:59,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:00,019 INFO L93 Difference]: Finished difference Result 413 states and 631 transitions. [2021-11-25 17:49:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:00,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-25 17:49:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:00,022 INFO L225 Difference]: With dead ends: 413 [2021-11-25 17:49:00,022 INFO L226 Difference]: Without dead ends: 271 [2021-11-25 17:49:00,023 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 [2021-11-25 17:49:00,024 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 115 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:00,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 224 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:49:00,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-25 17:49:00,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 171. [2021-11-25 17:49:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.5058823529411764) internal successors, (256), 170 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2021-11-25 17:49:00,035 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 42 [2021-11-25 17:49:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:00,035 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2021-11-25 17:49:00,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2021-11-25 17:49:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-25 17:49:00,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:00,037 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] [2021-11-25 17:49:00,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:49:00,038 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:00,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2064592613, now seen corresponding path program 1 times [2021-11-25 17:49:00,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:00,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196240720] [2021-11-25 17:49:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:00,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:00,266 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196240720] [2021-11-25 17:49:00,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196240720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:00,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:00,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:00,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564429983] [2021-11-25 17:49:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:00,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:00,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:00,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:00,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:00,269 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:02,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:02,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:02,594 INFO L93 Difference]: Finished difference Result 342 states and 510 transitions. [2021-11-25 17:49:02,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-25 17:49:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:02,597 INFO L225 Difference]: With dead ends: 342 [2021-11-25 17:49:02,597 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 17:49:02,598 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 [2021-11-25 17:49:02,599 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 9 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:02,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 328 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 151 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:49:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 17:49:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2021-11-25 17:49:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.5) internal successors, (255), 170 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 255 transitions. [2021-11-25 17:49:02,607 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 255 transitions. Word has length 42 [2021-11-25 17:49:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:02,607 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 255 transitions. [2021-11-25 17:49:02,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:02,607 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 255 transitions. [2021-11-25 17:49:02,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 17:49:02,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:02,609 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] [2021-11-25 17:49:02,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 17:49:02,609 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash 679455371, now seen corresponding path program 1 times [2021-11-25 17:49:02,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:02,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667748383] [2021-11-25 17:49:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:02,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:02,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:02,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667748383] [2021-11-25 17:49:02,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667748383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:02,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:02,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:02,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573807870] [2021-11-25 17:49:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:02,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:02,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:02,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:02,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:02,759 INFO L87 Difference]: Start difference. First operand 171 states and 255 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:04,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:05,042 INFO L93 Difference]: Finished difference Result 340 states and 507 transitions. [2021-11-25 17:49:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:05,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-25 17:49:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:05,044 INFO L225 Difference]: With dead ends: 340 [2021-11-25 17:49:05,044 INFO L226 Difference]: Without dead ends: 181 [2021-11-25 17:49:05,045 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 [2021-11-25 17:49:05,046 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 9 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:05,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 331 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:49:05,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-25 17:49:05,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2021-11-25 17:49:05,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.4941176470588236) internal successors, (254), 170 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 254 transitions. [2021-11-25 17:49:05,056 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 254 transitions. Word has length 43 [2021-11-25 17:49:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:05,056 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-11-25 17:49:05,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 254 transitions. [2021-11-25 17:49:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 17:49:05,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:05,057 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] [2021-11-25 17:49:05,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 17:49:05,058 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:05,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1101209052, now seen corresponding path program 1 times [2021-11-25 17:49:05,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:05,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629243913] [2021-11-25 17:49:05,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:05,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:05,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:05,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629243913] [2021-11-25 17:49:05,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629243913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:05,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:05,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:05,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024194837] [2021-11-25 17:49:05,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:05,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:05,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:05,335 INFO L87 Difference]: Start difference. First operand 171 states and 254 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:07,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:07,668 INFO L93 Difference]: Finished difference Result 340 states and 506 transitions. [2021-11-25 17:49:07,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:07,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-25 17:49:07,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:07,671 INFO L225 Difference]: With dead ends: 340 [2021-11-25 17:49:07,671 INFO L226 Difference]: Without dead ends: 181 [2021-11-25 17:49:07,672 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 [2021-11-25 17:49:07,672 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 11 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:07,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 331 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:49:07,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-25 17:49:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2021-11-25 17:49:07,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.488235294117647) internal successors, (253), 170 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 253 transitions. [2021-11-25 17:49:07,680 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 253 transitions. Word has length 43 [2021-11-25 17:49:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:07,681 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 253 transitions. [2021-11-25 17:49:07,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 253 transitions. [2021-11-25 17:49:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 17:49:07,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:07,682 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] [2021-11-25 17:49:07,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 17:49:07,683 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:07,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1632632798, now seen corresponding path program 1 times [2021-11-25 17:49:07,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:07,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593985621] [2021-11-25 17:49:07,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:07,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:07,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:07,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593985621] [2021-11-25 17:49:07,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593985621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:07,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:07,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:07,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235021305] [2021-11-25 17:49:07,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:07,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:07,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:07,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:07,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:07,821 INFO L87 Difference]: Start difference. First operand 171 states and 253 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:09,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:10,295 INFO L93 Difference]: Finished difference Result 418 states and 626 transitions. [2021-11-25 17:49:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-11-25 17:49:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:10,297 INFO L225 Difference]: With dead ends: 418 [2021-11-25 17:49:10,297 INFO L226 Difference]: Without dead ends: 259 [2021-11-25 17:49:10,298 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 [2021-11-25 17:49:10,299 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 116 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:10,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 224 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 234 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-25 17:49:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-25 17:49:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 171. [2021-11-25 17:49:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.464705882352941) internal successors, (249), 170 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 249 transitions. [2021-11-25 17:49:10,308 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 249 transitions. Word has length 44 [2021-11-25 17:49:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:10,308 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 249 transitions. [2021-11-25 17:49:10,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 249 transitions. [2021-11-25 17:49:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-25 17:49:10,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:10,309 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] [2021-11-25 17:49:10,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 17:49:10,310 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:10,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:10,310 INFO L85 PathProgramCache]: Analyzing trace with hash -732094757, now seen corresponding path program 1 times [2021-11-25 17:49:10,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:10,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63513429] [2021-11-25 17:49:10,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:10,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:10,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:10,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63513429] [2021-11-25 17:49:10,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63513429] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:10,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:10,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:10,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134222152] [2021-11-25 17:49:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:10,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:10,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:10,449 INFO L87 Difference]: Start difference. First operand 171 states and 249 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:12,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:12,807 INFO L93 Difference]: Finished difference Result 364 states and 532 transitions. [2021-11-25 17:49:12,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:12,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-25 17:49:12,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:12,814 INFO L225 Difference]: With dead ends: 364 [2021-11-25 17:49:12,814 INFO L226 Difference]: Without dead ends: 205 [2021-11-25 17:49:12,815 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 [2021-11-25 17:49:12,816 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 17 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:12,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 336 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:49:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-25 17:49:12,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2021-11-25 17:49:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 1.4631578947368422) internal successors, (278), 190 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:12,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 278 transitions. [2021-11-25 17:49:12,825 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 278 transitions. Word has length 45 [2021-11-25 17:49:12,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:12,825 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 278 transitions. [2021-11-25 17:49:12,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:12,826 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 278 transitions. [2021-11-25 17:49:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 17:49:12,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:12,827 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] [2021-11-25 17:49:12,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 17:49:12,828 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:12,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:12,828 INFO L85 PathProgramCache]: Analyzing trace with hash -539820860, now seen corresponding path program 1 times [2021-11-25 17:49:12,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:12,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989580431] [2021-11-25 17:49:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:12,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:12,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:12,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989580431] [2021-11-25 17:49:12,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989580431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:12,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:12,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:12,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716745585] [2021-11-25 17:49:12,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:12,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:12,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:12,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:12,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:12,980 INFO L87 Difference]: Start difference. First operand 191 states and 278 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:14,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:15,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:15,390 INFO L93 Difference]: Finished difference Result 458 states and 677 transitions. [2021-11-25 17:49:15,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:15,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-25 17:49:15,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:15,393 INFO L225 Difference]: With dead ends: 458 [2021-11-25 17:49:15,393 INFO L226 Difference]: Without dead ends: 279 [2021-11-25 17:49:15,394 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 [2021-11-25 17:49:15,394 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 110 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:15,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 244 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 238 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:49:15,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-25 17:49:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 193. [2021-11-25 17:49:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.453125) internal successors, (279), 192 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 279 transitions. [2021-11-25 17:49:15,404 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 279 transitions. Word has length 57 [2021-11-25 17:49:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:15,405 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 279 transitions. [2021-11-25 17:49:15,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 279 transitions. [2021-11-25 17:49:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 17:49:15,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:15,406 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] [2021-11-25 17:49:15,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 17:49:15,406 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:15,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:15,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1547016332, now seen corresponding path program 1 times [2021-11-25 17:49:15,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:15,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110712726] [2021-11-25 17:49:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:15,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:15,554 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:15,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110712726] [2021-11-25 17:49:15,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110712726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:15,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:15,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:15,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306290670] [2021-11-25 17:49:15,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:15,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:15,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:15,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:15,557 INFO L87 Difference]: Start difference. First operand 193 states and 279 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:17,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:18,016 INFO L93 Difference]: Finished difference Result 460 states and 675 transitions. [2021-11-25 17:49:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:18,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-25 17:49:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:18,018 INFO L225 Difference]: With dead ends: 460 [2021-11-25 17:49:18,018 INFO L226 Difference]: Without dead ends: 279 [2021-11-25 17:49:18,019 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 [2021-11-25 17:49:18,019 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 110 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:18,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 243 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:49:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-25 17:49:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 193. [2021-11-25 17:49:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.4375) internal successors, (276), 192 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 276 transitions. [2021-11-25 17:49:18,030 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 276 transitions. Word has length 58 [2021-11-25 17:49:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:18,030 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 276 transitions. [2021-11-25 17:49:18,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 276 transitions. [2021-11-25 17:49:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 17:49:18,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:18,032 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] [2021-11-25 17:49:18,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 17:49:18,032 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:18,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1968770013, now seen corresponding path program 1 times [2021-11-25 17:49:18,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:18,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676749307] [2021-11-25 17:49:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:18,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 17:49:18,196 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:18,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676749307] [2021-11-25 17:49:18,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676749307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:18,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:18,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:49:18,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044370897] [2021-11-25 17:49:18,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:18,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:49:18,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:18,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:49:18,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:49:18,199 INFO L87 Difference]: Start difference. First operand 193 states and 276 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:20,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:20,652 INFO L93 Difference]: Finished difference Result 382 states and 550 transitions. [2021-11-25 17:49:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:49:20,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-25 17:49:20,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:20,654 INFO L225 Difference]: With dead ends: 382 [2021-11-25 17:49:20,654 INFO L226 Difference]: Without dead ends: 201 [2021-11-25 17:49:20,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:49:20,655 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 118 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:20,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 237 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 271 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:49:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-25 17:49:20,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2021-11-25 17:49:20,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.4271356783919598) internal successors, (284), 199 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 284 transitions. [2021-11-25 17:49:20,665 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 284 transitions. Word has length 58 [2021-11-25 17:49:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:20,665 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 284 transitions. [2021-11-25 17:49:20,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:20,665 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 284 transitions. [2021-11-25 17:49:20,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-25 17:49:20,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:20,666 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] [2021-11-25 17:49:20,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 17:49:20,667 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:20,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:20,667 INFO L85 PathProgramCache]: Analyzing trace with hash 352752516, now seen corresponding path program 1 times [2021-11-25 17:49:20,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:20,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996272647] [2021-11-25 17:49:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:20,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:20,812 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:20,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996272647] [2021-11-25 17:49:20,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996272647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:20,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:20,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:20,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602572014] [2021-11-25 17:49:20,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:20,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:20,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:20,814 INFO L87 Difference]: Start difference. First operand 200 states and 284 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:22,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:23,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:23,243 INFO L93 Difference]: Finished difference Result 466 states and 675 transitions. [2021-11-25 17:49:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:23,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-11-25 17:49:23,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:23,246 INFO L225 Difference]: With dead ends: 466 [2021-11-25 17:49:23,246 INFO L226 Difference]: Without dead ends: 278 [2021-11-25 17:49:23,246 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 [2021-11-25 17:49:23,247 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:23,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 259 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 229 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:49:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-25 17:49:23,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 200. [2021-11-25 17:49:23,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.407035175879397) internal successors, (280), 199 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:23,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 280 transitions. [2021-11-25 17:49:23,257 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 280 transitions. Word has length 59 [2021-11-25 17:49:23,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:23,258 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 280 transitions. [2021-11-25 17:49:23,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:23,283 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 280 transitions. [2021-11-25 17:49:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-25 17:49:23,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:23,284 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] [2021-11-25 17:49:23,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 17:49:23,284 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1201035306, now seen corresponding path program 1 times [2021-11-25 17:49:23,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:23,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902259359] [2021-11-25 17:49:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:23,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:23,462 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:23,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:23,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902259359] [2021-11-25 17:49:23,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902259359] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613600520] [2021-11-25 17:49:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:23,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:49:23,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:23,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:49:23,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:49:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:24,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:49:24,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:49:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:24,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:49:24,573 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 17:49:24,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613600520] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:24,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 17:49:24,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 5 [2021-11-25 17:49:24,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54436909] [2021-11-25 17:49:24,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:24,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:24,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:49:24,576 INFO L87 Difference]: Start difference. First operand 200 states and 280 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 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) [2021-11-25 17:49:26,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:26,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:26,723 INFO L93 Difference]: Finished difference Result 389 states and 548 transitions. [2021-11-25 17:49:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:26,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 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 63 [2021-11-25 17:49:26,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:26,726 INFO L225 Difference]: With dead ends: 389 [2021-11-25 17:49:26,726 INFO L226 Difference]: Without dead ends: 387 [2021-11-25 17:49:26,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:49:26,727 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 116 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:26,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 278 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 17:49:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-25 17:49:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 384. [2021-11-25 17:49:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 383 states have (on average 1.4203655352480418) internal successors, (544), 383 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 544 transitions. [2021-11-25 17:49:26,745 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 544 transitions. Word has length 63 [2021-11-25 17:49:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:26,745 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 544 transitions. [2021-11-25 17:49:26,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 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) [2021-11-25 17:49:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 544 transitions. [2021-11-25 17:49:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-25 17:49:26,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:26,747 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] [2021-11-25 17:49:26,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:49:26,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-25 17:49:26,952 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:26,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:26,952 INFO L85 PathProgramCache]: Analyzing trace with hash 981757880, now seen corresponding path program 1 times [2021-11-25 17:49:26,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:26,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484151864] [2021-11-25 17:49:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:26,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:27,120 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:27,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484151864] [2021-11-25 17:49:27,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484151864] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:27,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843560703] [2021-11-25 17:49:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:27,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:49:27,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:27,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:49:27,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:49:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:27,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:49:27,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:49:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:28,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:49:28,325 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 17:49:28,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843560703] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:28,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 17:49:28,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 5 [2021-11-25 17:49:28,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37962787] [2021-11-25 17:49:28,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:28,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:28,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:28,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:28,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:49:28,327 INFO L87 Difference]: Start difference. First operand 384 states and 544 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:30,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:30,493 INFO L93 Difference]: Finished difference Result 754 states and 1074 transitions. [2021-11-25 17:49:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-25 17:49:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:30,499 INFO L225 Difference]: With dead ends: 754 [2021-11-25 17:49:30,499 INFO L226 Difference]: Without dead ends: 752 [2021-11-25 17:49:30,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:49:30,500 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 108 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:30,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 277 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 17:49:30,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-11-25 17:49:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2021-11-25 17:49:30,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.4247669773635152) internal successors, (1070), 751 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1070 transitions. [2021-11-25 17:49:30,535 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1070 transitions. Word has length 69 [2021-11-25 17:49:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:30,535 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 1070 transitions. [2021-11-25 17:49:30,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1070 transitions. [2021-11-25 17:49:30,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-25 17:49:30,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:30,538 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:30,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:49:30,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 17:49:30,764 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:30,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:30,764 INFO L85 PathProgramCache]: Analyzing trace with hash 623338396, now seen corresponding path program 1 times [2021-11-25 17:49:30,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:30,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460823914] [2021-11-25 17:49:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:30,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 17:49:30,935 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:30,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460823914] [2021-11-25 17:49:30,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460823914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:30,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:30,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:30,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716075199] [2021-11-25 17:49:30,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:30,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:30,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:30,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:30,937 INFO L87 Difference]: Start difference. First operand 752 states and 1070 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) [2021-11-25 17:49:32,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:33,313 INFO L93 Difference]: Finished difference Result 1622 states and 2306 transitions. [2021-11-25 17:49:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:33,314 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 91 [2021-11-25 17:49:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:33,319 INFO L225 Difference]: With dead ends: 1622 [2021-11-25 17:49:33,319 INFO L226 Difference]: Without dead ends: 882 [2021-11-25 17:49:33,320 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 [2021-11-25 17:49:33,321 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 19 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:33,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 390 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:49:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-25 17:49:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 848. [2021-11-25 17:49:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 1.423848878394333) internal successors, (1206), 847 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:33,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1206 transitions. [2021-11-25 17:49:33,358 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1206 transitions. Word has length 91 [2021-11-25 17:49:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:33,359 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1206 transitions. [2021-11-25 17:49:33,359 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) [2021-11-25 17:49:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1206 transitions. [2021-11-25 17:49:33,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-25 17:49:33,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:33,362 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] [2021-11-25 17:49:33,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 17:49:33,362 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:33,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:33,362 INFO L85 PathProgramCache]: Analyzing trace with hash -398064627, now seen corresponding path program 1 times [2021-11-25 17:49:33,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:33,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165387544] [2021-11-25 17:49:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:33,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 61 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:33,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:33,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165387544] [2021-11-25 17:49:33,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165387544] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:33,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151950089] [2021-11-25 17:49:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:33,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:49:33,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:33,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:49:33,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:49:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:34,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 17:49:34,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:49:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 61 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:34,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:49:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 17:49:34,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151950089] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:34,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 17:49:34,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 5 [2021-11-25 17:49:34,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021961713] [2021-11-25 17:49:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:34,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:34,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:49:34,741 INFO L87 Difference]: Start difference. First operand 848 states and 1206 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:36,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:36,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:36,924 INFO L93 Difference]: Finished difference Result 2090 states and 2985 transitions. [2021-11-25 17:49:36,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:36,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-25 17:49:36,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:36,934 INFO L225 Difference]: With dead ends: 2090 [2021-11-25 17:49:36,934 INFO L226 Difference]: Without dead ends: 1670 [2021-11-25 17:49:36,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:49:36,937 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 112 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:36,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 275 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 17:49:36,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-11-25 17:49:37,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1658. [2021-11-25 17:49:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1657 states have (on average 1.427278213639107) internal successors, (2365), 1657 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2365 transitions. [2021-11-25 17:49:37,040 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2365 transitions. Word has length 105 [2021-11-25 17:49:37,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:37,040 INFO L470 AbstractCegarLoop]: Abstraction has 1658 states and 2365 transitions. [2021-11-25 17:49:37,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2365 transitions. [2021-11-25 17:49:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 17:49:37,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:37,044 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:37,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:49:37,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:49:37,260 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1955221781, now seen corresponding path program 2 times [2021-11-25 17:49:37,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:37,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002462027] [2021-11-25 17:49:37,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:37,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 17:49:37,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:37,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002462027] [2021-11-25 17:49:37,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002462027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:37,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:37,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:37,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530082264] [2021-11-25 17:49:37,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:37,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:37,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:37,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:37,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:37,440 INFO L87 Difference]: Start difference. First operand 1658 states and 2365 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:39,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:39,933 INFO L93 Difference]: Finished difference Result 3878 states and 5607 transitions. [2021-11-25 17:49:39,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:39,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-25 17:49:39,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:39,946 INFO L225 Difference]: With dead ends: 3878 [2021-11-25 17:49:39,946 INFO L226 Difference]: Without dead ends: 2232 [2021-11-25 17:49:39,949 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 [2021-11-25 17:49:39,950 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 99 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:39,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 288 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 236 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:49:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2021-11-25 17:49:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1690. [2021-11-25 17:49:40,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1689 states have (on average 1.4239194789816458) internal successors, (2405), 1689 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2405 transitions. [2021-11-25 17:49:40,076 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2405 transitions. Word has length 109 [2021-11-25 17:49:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:40,076 INFO L470 AbstractCegarLoop]: Abstraction has 1690 states and 2405 transitions. [2021-11-25 17:49:40,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2405 transitions. [2021-11-25 17:49:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 17:49:40,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:40,080 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:40,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 17:49:40,080 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:40,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:40,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2004798913, now seen corresponding path program 1 times [2021-11-25 17:49:40,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:40,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394580673] [2021-11-25 17:49:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:40,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:49:42,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 17:49:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:49:43,309 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 17:49:43,309 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 17:49:43,310 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 17:49:43,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 17:49:43,315 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:43,318 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 17:49:43,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:49:43 BoogieIcfgContainer [2021-11-25 17:49:43,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 17:49:43,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 17:49:43,473 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 17:49:43,473 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 17:49:43,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:48:42" (3/4) ... [2021-11-25 17:49:43,476 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 17:49:43,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 17:49:43,477 INFO L158 Benchmark]: Toolchain (without parser) took 64591.13ms. Allocated memory was 98.6MB in the beginning and 224.4MB in the end (delta: 125.8MB). Free memory was 65.1MB in the beginning and 141.3MB in the end (delta: -76.2MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2021-11-25 17:49:43,478 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory was 53.0MB in the beginning and 52.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:49:43,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.31ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 53.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 17:49:43,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.15ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 49.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 17:49:43,484 INFO L158 Benchmark]: Boogie Preprocessor took 104.97ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 49.0MB in the beginning and 96.4MB in the end (delta: -47.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-25 17:49:43,484 INFO L158 Benchmark]: RCFGBuilder took 3086.56ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 54.0MB in the end (delta: 42.4MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2021-11-25 17:49:43,484 INFO L158 Benchmark]: TraceAbstraction took 60571.97ms. Allocated memory was 127.9MB in the beginning and 224.4MB in the end (delta: 96.5MB). Free memory was 54.0MB in the beginning and 141.3MB in the end (delta: -87.3MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. [2021-11-25 17:49:43,485 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 224.4MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:49:43,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory was 53.0MB in the beginning and 52.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.31ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 53.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.15ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 49.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.97ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 49.0MB in the beginning and 96.4MB in the end (delta: -47.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3086.56ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 54.0MB in the end (delta: 42.4MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * TraceAbstraction took 60571.97ms. Allocated memory was 127.9MB in the beginning and 224.4MB in the end (delta: 96.5MB). Free memory was 54.0MB in the beginning and 141.3MB in the end (delta: -87.3MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 224.4MB. Free memory is still 141.3MB. 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: 1757]: 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 1475. 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)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1105] CALL ssl3_accept(s) [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND FALSE !((unsigned long )s->info_callback != (unsigned long )((void *)0)) [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->cert={4294967297:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 VAL [={0:0}, blastFlag=1, got_new_session=0, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967309, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:0}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND FALSE !(s->hit) [L1386] s->state = 8512 [L1388] s->init_num = 0 VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967309, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1209] COND TRUE s->state == 8512 [L1392] EXPR s->s3 [L1392] EXPR (s->s3)->tmp.new_cipher [L1392] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:0}, ((s->s3)->tmp.new_cipher)->algorithms=4294967361, (s->s3)->tmp.new_cipher={4294967293:0}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1392] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1395] ret = __VERIFIER_nondet_int() [L1396] COND TRUE blastFlag == 2 [L1397] blastFlag = 6 VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1401] COND FALSE !(ret <= 0) VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1407] s->state = 8528 [L1408] s->init_num = 0 VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967309, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state VAL [={0:0}, blastFlag=6, got_new_session=1, init=1, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1215] COND TRUE s->state == 8528 [L1412] EXPR s->s3 [L1412] EXPR (s->s3)->tmp.new_cipher [L1412] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1412] l = ((s->s3)->tmp.new_cipher)->algorithms [L1413] EXPR s->options [L1413] COND TRUE s->options & 2097152UL [L1414] EXPR s->s3 [L1414] (s->s3)->tmp.use_rsa_tmp = 1 [L1418] EXPR s->s3 [L1418] (s->s3)->tmp.use_rsa_tmp VAL [={0:0}, (s->s3)->tmp.use_rsa_tmp=1, blastFlag=6, got_new_session=1, init=1, l=65, ret=9, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->s3={4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1418] COND TRUE (s->s3)->tmp.use_rsa_tmp [L1436] ret = __VERIFIER_nondet_int() [L1437] COND TRUE blastFlag == 6 [L1438] blastFlag = 7 VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1442] COND FALSE !(ret <= 0) VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1459] s->state = 8544 [L1460] s->init_num = 0 VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967309, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->s3={4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1221] COND TRUE s->state == 8544 [L1464] EXPR s->verify_mode VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->verify_mode=6, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1464] COND TRUE s->verify_mode & 1 [L1465] EXPR s->session [L1465] EXPR (s->session)->peer VAL [={0:0}, (s->session)->peer={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, s->session={4294967296:0}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1465] COND FALSE !((unsigned long )(s->session)->peer != (unsigned long )((void *)0)) [L1475] EXPR s->s3 [L1475] EXPR (s->s3)->tmp.new_cipher [L1475] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:0}, ((s->s3)->tmp.new_cipher)->algorithms=4294967361, (s->s3)->tmp.new_cipher={4294967293:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=1, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967294:0}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1475] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1485] EXPR s->s3 [L1485] (s->s3)->tmp.cert_request = 1 [L1486] ret = __VERIFIER_nondet_int() [L1487] COND TRUE blastFlag == 7 VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=0, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] [L1757] reach_error() VAL [={0:0}, blastFlag=7, got_new_session=1, init=1, l=65, ret=0, s={-3:0}, s={-3:0}, s->info_callback={4294967357:4294967324}, s->s3={4294967331:4294967359}, s->s3={4294967347:4294967353}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=0, tmp=0, tmp___1=0, tmp___10=0, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.3s, OverallIterations: 21, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 48.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 1679 SdHoareTripleChecker+Valid, 47.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1679 mSDsluCounter, 5557 SdHoareTripleChecker+Invalid, 45.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3744 mSDsCounter, 570 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3695 IncrementalHoareTripleChecker+Invalid, 4285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 570 mSolverCounterUnsat, 2151 mSDtfsCounter, 3695 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 559 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1690occurred in iteration=20, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 1440 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1456 NumberOfCodeBlocks, 1456 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1558 ConstructedInterpolants, 0 QuantifiedInterpolants, 4188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2857 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 26 InterpolantComputations, 20 PerfectInterpolantSequences, 671/887 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 [2021-11-25 17:49:43,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/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_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7 --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 be72ada7daf51b9672b82550c90021fecf4891e35726a3813c73070b244ac267 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:49:45,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:49:45,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:49:45,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:49:45,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:49:45,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:49:45,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:49:45,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:49:45,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:49:45,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:49:45,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:49:45,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:49:45,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:49:45,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:49:45,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:49:45,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:49:45,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:49:45,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:49:45,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:49:45,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:49:45,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:49:45,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:49:45,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:49:45,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:49:45,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:49:45,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:49:45,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:49:45,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:49:45,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:49:45,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:49:45,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:49:45,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:49:45,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:49:45,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:49:45,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:49:45,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:49:45,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:49:45,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:49:45,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:49:45,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:49:45,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:49:45,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 17:49:45,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:49:45,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:49:45,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:49:45,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:49:45,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:49:45,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:49:45,913 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:49:45,913 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:49:45,913 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:49:45,914 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:49:45,914 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:49:45,914 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:49:45,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:49:45,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:49:45,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:49:45,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:49:45,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:49:45,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:49:45,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:49:45,918 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 17:49:45,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 17:49:45,919 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 17:49:45,919 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:49:45,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:49:45,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:49:45,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:49:45,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:49:45,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 17:49:45,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:49:45,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:45,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:49:45,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:49:45,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:49:45,922 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 17:49:45,922 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 17:49:45,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:49:45,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:49:45,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:49:45,923 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_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be72ada7daf51b9672b82550c90021fecf4891e35726a3813c73070b244ac267 [2021-11-25 17:49:46,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:49:46,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:49:46,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:49:46,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:49:46,316 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:49:46,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c [2021-11-25 17:49:46,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/2d704d20b/06ee7711503442858ac5bfa98b6aca7a/FLAG99b9168f2 [2021-11-25 17:49:47,050 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:49:47,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c [2021-11-25 17:49:47,076 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/2d704d20b/06ee7711503442858ac5bfa98b6aca7a/FLAG99b9168f2 [2021-11-25 17:49:47,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/data/2d704d20b/06ee7711503442858ac5bfa98b6aca7a [2021-11-25 17:49:47,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:49:47,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:49:47,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:47,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:49:47,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:49:47,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:47" (1/1) ... [2021-11-25 17:49:47,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b5cdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:47, skipping insertion in model container [2021-11-25 17:49:47,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:47" (1/1) ... [2021-11-25 17:49:47,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:49:47,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:49:47,813 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_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c[74369,74382] [2021-11-25 17:49:47,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:47,875 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-25 17:49:47,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:49:48,081 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_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c[74369,74382] [2021-11-25 17:49:48,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:48,095 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:49:48,200 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_5cc8a518-5b2c-4f26-b327-3304155a791b/sv-benchmarks/c/openssl/s3_srvr.blast.11.i.cil-1.c[74369,74382] [2021-11-25 17:49:48,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:48,219 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:49:48,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48 WrapperNode [2021-11-25 17:49:48,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:48,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:48,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:49:48,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:49:48,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,338 INFO L137 Inliner]: procedures = 35, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 762 [2021-11-25 17:49:48,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:48,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:49:48,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:49:48,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:49:48,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:49:48,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:49:48,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:49:48,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:49:48,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (1/1) ... [2021-11-25 17:49:48,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:48,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:48,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:49:48,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:49:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:49:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 17:49:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:49:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 17:49:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:49:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:49:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:49:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:49:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 17:49:48,747 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:49:48,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:49:48,765 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 17:49:56,947 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-25 17:49:56,948 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-25 17:49:56,948 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:49:56,963 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:49:56,963 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 17:49:56,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:56 BoogieIcfgContainer [2021-11-25 17:49:56,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:49:56,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:49:56,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:49:56,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:49:56,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:49:47" (1/3) ... [2021-11-25 17:49:56,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c843271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:56, skipping insertion in model container [2021-11-25 17:49:56,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:48" (2/3) ... [2021-11-25 17:49:56,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c843271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:56, skipping insertion in model container [2021-11-25 17:49:56,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:56" (3/3) ... [2021-11-25 17:49:56,978 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-1.c [2021-11-25 17:49:56,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:49:56,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:49:57,048 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:49:57,061 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 [2021-11-25 17:49:57,065 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:49:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 17:49:57,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:57,102 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] [2021-11-25 17:49:57,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:57,108 INFO L85 PathProgramCache]: Analyzing trace with hash -442385417, now seen corresponding path program 1 times [2021-11-25 17:49:57,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:49:57,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831179403] [2021-11-25 17:49:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:57,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:49:57,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:49:57,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:49:57,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 17:49:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:57,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:49:57,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:49:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:57,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:49:57,995 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:49:57,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831179403] [2021-11-25 17:49:57,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831179403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:57,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:57,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:57,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12178584] [2021-11-25 17:49:57,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:58,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:58,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:49:58,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:58,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:58,032 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:58,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:58,150 INFO L93 Difference]: Finished difference Result 427 states and 728 transitions. [2021-11-25 17:49:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-11-25 17:49:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:58,165 INFO L225 Difference]: With dead ends: 427 [2021-11-25 17:49:58,165 INFO L226 Difference]: Without dead ends: 261 [2021-11-25 17:49:58,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:58,172 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 201 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:58,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 461 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 17:49:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-25 17:49:58,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2021-11-25 17:49:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.5153846153846153) internal successors, (394), 260 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 394 transitions. [2021-11-25 17:49:58,233 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 394 transitions. Word has length 37 [2021-11-25 17:49:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:58,233 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 394 transitions. [2021-11-25 17:49:58,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:58,234 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 394 transitions. [2021-11-25 17:49:58,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-25 17:49:58,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:58,238 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] [2021-11-25 17:49:58,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:49:58,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:49:58,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:58,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:58,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1297584632, now seen corresponding path program 1 times [2021-11-25 17:49:58,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:49:58,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637234061] [2021-11-25 17:49:58,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:58,461 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:49:58,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:49:58,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:49:58,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 17:49:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:59,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:49:59,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:49:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:59,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:49:59,344 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:49:59,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637234061] [2021-11-25 17:49:59,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637234061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:59,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:59,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:59,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121564957] [2021-11-25 17:49:59,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:59,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:59,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:49:59,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:59,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:59,348 INFO L87 Difference]: Start difference. First operand 261 states and 394 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:00,282 INFO L93 Difference]: Finished difference Result 510 states and 781 transitions. [2021-11-25 17:50:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:00,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-25 17:50:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:00,287 INFO L225 Difference]: With dead ends: 510 [2021-11-25 17:50:00,287 INFO L226 Difference]: Without dead ends: 383 [2021-11-25 17:50:00,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:00,289 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 150 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:00,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 567 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 17:50:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-11-25 17:50:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-11-25 17:50:00,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5052356020942408) internal successors, (575), 382 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 575 transitions. [2021-11-25 17:50:00,316 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 575 transitions. Word has length 54 [2021-11-25 17:50:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:00,317 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 575 transitions. [2021-11-25 17:50:00,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 575 transitions. [2021-11-25 17:50:00,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-25 17:50:00,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:00,322 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-25 17:50:00,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:00,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:00,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2072838766, now seen corresponding path program 1 times [2021-11-25 17:50:00,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:50:00,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383428577] [2021-11-25 17:50:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:00,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:50:00,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:50:00,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:50:00,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 17:50:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:01,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:50:01,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 17:50:01,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:01,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:50:01,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383428577] [2021-11-25 17:50:01,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383428577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:01,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:01,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:01,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513452667] [2021-11-25 17:50:01,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:01,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:01,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:50:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:01,418 INFO L87 Difference]: Start difference. First operand 383 states and 575 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2021-11-25 17:50:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:01,951 INFO L93 Difference]: Finished difference Result 754 states and 1144 transitions. [2021-11-25 17:50:01,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:01,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 76 [2021-11-25 17:50:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:01,958 INFO L225 Difference]: With dead ends: 754 [2021-11-25 17:50:01,958 INFO L226 Difference]: Without dead ends: 505 [2021-11-25 17:50:01,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:01,960 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 148 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:01,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 569 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:50:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-25 17:50:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2021-11-25 17:50:01,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 504 states have (on average 1.501984126984127) internal successors, (757), 504 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 757 transitions. [2021-11-25 17:50:01,999 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 757 transitions. Word has length 76 [2021-11-25 17:50:02,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:02,000 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 757 transitions. [2021-11-25 17:50:02,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2021-11-25 17:50:02,000 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 757 transitions. [2021-11-25 17:50:02,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-25 17:50:02,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:02,016 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:02,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:02,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:02,232 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:02,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:02,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1458485308, now seen corresponding path program 1 times [2021-11-25 17:50:02,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:50:02,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951144197] [2021-11-25 17:50:02,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:02,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:50:02,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:50:02,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:50:02,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 17:50:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:02,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:50:02,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-25 17:50:03,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:03,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:50:03,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951144197] [2021-11-25 17:50:03,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951144197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:03,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:03,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:03,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341068415] [2021-11-25 17:50:03,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:03,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:03,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:50:03,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:03,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:03,234 INFO L87 Difference]: Start difference. First operand 505 states and 757 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) [2021-11-25 17:50:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:04,242 INFO L93 Difference]: Finished difference Result 1000 states and 1510 transitions. [2021-11-25 17:50:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:04,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 100 [2021-11-25 17:50:04,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:04,249 INFO L225 Difference]: With dead ends: 1000 [2021-11-25 17:50:04,249 INFO L226 Difference]: Without dead ends: 629 [2021-11-25 17:50:04,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:04,251 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 152 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:04,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 572 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 17:50:04,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-11-25 17:50:04,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2021-11-25 17:50:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.4984076433121019) internal successors, (941), 628 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 941 transitions. [2021-11-25 17:50:04,273 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 941 transitions. Word has length 100 [2021-11-25 17:50:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:04,274 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 941 transitions. [2021-11-25 17:50:04,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) [2021-11-25 17:50:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 941 transitions. [2021-11-25 17:50:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 17:50:04,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:04,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:04,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:04,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:04,492 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:04,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1045011737, now seen corresponding path program 1 times [2021-11-25 17:50:04,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:50:04,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010217561] [2021-11-25 17:50:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:04,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:50:04,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:50:04,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:50:04,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 17:50:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:05,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:50:05,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-25 17:50:05,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:05,512 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:50:05,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010217561] [2021-11-25 17:50:05,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010217561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:05,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:05,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:05,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019208632] [2021-11-25 17:50:05,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:05,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:05,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:50:05,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:05,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:05,514 INFO L87 Difference]: Start difference. First operand 629 states and 941 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:06,132 INFO L93 Difference]: Finished difference Result 1246 states and 1875 transitions. [2021-11-25 17:50:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:06,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 117 [2021-11-25 17:50:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:06,138 INFO L225 Difference]: With dead ends: 1246 [2021-11-25 17:50:06,139 INFO L226 Difference]: Without dead ends: 751 [2021-11-25 17:50:06,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:06,140 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 149 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:06,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 569 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 17:50:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-11-25 17:50:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2021-11-25 17:50:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 750 states have (on average 1.496) internal successors, (1122), 750 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1122 transitions. [2021-11-25 17:50:06,165 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1122 transitions. Word has length 117 [2021-11-25 17:50:06,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:06,165 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1122 transitions. [2021-11-25 17:50:06,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1122 transitions. [2021-11-25 17:50:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 17:50:06,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:06,171 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:06,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:06,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:06,384 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:06,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1006485834, now seen corresponding path program 1 times [2021-11-25 17:50:06,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:50:06,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115217068] [2021-11-25 17:50:06,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:06,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:50:06,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:50:06,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:50:06,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-25 17:50:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:07,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-25 17:50:07,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:07,866 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 [2021-11-25 17:50:07,877 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 [2021-11-25 17:50:08,626 INFO L354 Elim1Store]: treesize reduction 1496, result has 4.7 percent of original size [2021-11-25 17:50:08,626 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 8 case distinctions, treesize of input 78 treesize of output 85 [2021-11-25 17:50:08,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 85 [2021-11-25 17:50:08,930 INFO L354 Elim1Store]: treesize reduction 324, result has 10.2 percent of original size [2021-11-25 17:50:08,931 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 4 case distinctions, treesize of input 38 treesize of output 49 [2021-11-25 17:50:08,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:08,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 49 [2021-11-25 17:50:08,994 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 19 treesize of output 7 [2021-11-25 17:50:08,999 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 19 treesize of output 7 [2021-11-25 17:50:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-25 17:50:09,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:09,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:50:09,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115217068] [2021-11-25 17:50:09,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115217068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:09,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:09,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:50:09,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756446738] [2021-11-25 17:50:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:09,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:50:09,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:50:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:50:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:09,269 INFO L87 Difference]: Start difference. First operand 751 states and 1122 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-11-25 17:50:11,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:13,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:17,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:21,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:24,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:24,629 INFO L93 Difference]: Finished difference Result 1499 states and 2240 transitions. [2021-11-25 17:50:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:50:24,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 129 [2021-11-25 17:50:24,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:24,637 INFO L225 Difference]: With dead ends: 1499 [2021-11-25 17:50:24,637 INFO L226 Difference]: Without dead ends: 751 [2021-11-25 17:50:24,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:50:24,645 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 7 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:24,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 671 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2021-11-25 17:50:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-11-25 17:50:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2021-11-25 17:50:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 750 states have (on average 1.4946666666666666) internal successors, (1121), 750 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1121 transitions. [2021-11-25 17:50:24,671 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1121 transitions. Word has length 129 [2021-11-25 17:50:24,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:24,671 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1121 transitions. [2021-11-25 17:50:24,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-11-25 17:50:24,672 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1121 transitions. [2021-11-25 17:50:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 17:50:24,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:24,679 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:24,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:24,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:24,888 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:24,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:24,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1440991432, now seen corresponding path program 1 times [2021-11-25 17:50:24,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:50:24,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708724415] [2021-11-25 17:50:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:24,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:50:24,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:50:24,890 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:50:24,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-25 17:50:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:26,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:50:26,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:26,767 INFO L354 Elim1Store]: treesize reduction 180, result has 14.3 percent of original size [2021-11-25 17:50:26,768 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 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-25 17:50:26,976 INFO L354 Elim1Store]: treesize reduction 324, result has 10.2 percent of original size [2021-11-25 17:50:26,976 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 4 case distinctions, treesize of input 40 treesize of output 51 [2021-11-25 17:50:27,092 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-25 17:50:27,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 15 [2021-11-25 17:50:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-25 17:50:27,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:27,291 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 17:50:27,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708724415] [2021-11-25 17:50:27,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708724415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:27,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:27,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:27,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893565454] [2021-11-25 17:50:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:27,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:27,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 17:50:27,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:27,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:27,293 INFO L87 Difference]: Start difference. First operand 751 states and 1121 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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) [2021-11-25 17:50:29,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:31,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:36,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:38,737 INFO L93 Difference]: Finished difference Result 1770 states and 2646 transitions. [2021-11-25 17:50:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:38,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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 129 [2021-11-25 17:50:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:38,746 INFO L225 Difference]: With dead ends: 1770 [2021-11-25 17:50:38,746 INFO L226 Difference]: Without dead ends: 1029 [2021-11-25 17:50:38,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:38,749 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 36 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:38,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 590 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 1 Unknown, 40 Unchecked, 11.4s Time] [2021-11-25 17:50:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-11-25 17:50:38,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 906. [2021-11-25 17:50:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.529281767955801) internal successors, (1384), 905 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:38,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1384 transitions. [2021-11-25 17:50:38,789 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1384 transitions. Word has length 129 [2021-11-25 17:50:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:38,791 INFO L470 AbstractCegarLoop]: Abstraction has 906 states and 1384 transitions. [2021-11-25 17:50:38,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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) [2021-11-25 17:50:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1384 transitions. [2021-11-25 17:50:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 17:50:38,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:38,795 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:38,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:39,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:39,020 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:39,020 INFO L85 PathProgramCache]: Analyzing trace with hash 895401078, now seen corresponding path program 1 times [2021-11-25 17:50:39,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 17:50:39,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596846972] [2021-11-25 17:50:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:39,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 17:50:39,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 17:50:39,022 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 17:50:39,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 17:50:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:50:47,437 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 17:50:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 17:50:52,241 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-25 17:50:52,241 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 17:50:52,242 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 17:50:52,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:52,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 17:50:52,461 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:52,464 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 17:50:52,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:50:52 BoogieIcfgContainer [2021-11-25 17:50:52,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 17:50:52,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 17:50:52,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 17:50:52,717 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 17:50:52,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:56" (3/4) ... [2021-11-25 17:50:52,719 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 17:50:52,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 17:50:52,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 17:50:52,864 INFO L158 Benchmark]: Toolchain (without parser) took 65556.80ms. Allocated memory was 58.7MB in the beginning and 136.3MB in the end (delta: 77.6MB). Free memory was 36.3MB in the beginning and 32.7MB in the end (delta: 3.6MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,864 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:50:52,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 912.84ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 36.1MB in the beginning and 52.6MB in the end (delta: -16.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.33ms. Allocated memory is still 81.8MB. Free memory was 52.6MB in the beginning and 48.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,865 INFO L158 Benchmark]: Boogie Preprocessor took 110.78ms. Allocated memory is still 81.8MB. Free memory was 48.0MB in the beginning and 40.7MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,866 INFO L158 Benchmark]: RCFGBuilder took 8514.60ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 40.7MB in the beginning and 66.6MB in the end (delta: -25.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,867 INFO L158 Benchmark]: TraceAbstraction took 55745.78ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 66.6MB in the beginning and 49.6MB in the end (delta: 17.0MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,867 INFO L158 Benchmark]: Witness Printer took 146.43ms. Allocated memory is still 136.3MB. Free memory was 49.6MB in the beginning and 32.7MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 17:50:52,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 912.84ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 36.1MB in the beginning and 52.6MB in the end (delta: -16.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.33ms. Allocated memory is still 81.8MB. Free memory was 52.6MB in the beginning and 48.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.78ms. Allocated memory is still 81.8MB. Free memory was 48.0MB in the beginning and 40.7MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 8514.60ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 40.7MB in the beginning and 66.6MB in the end (delta: -25.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * TraceAbstraction took 55745.78ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 66.6MB in the beginning and 49.6MB in the end (delta: 17.0MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Witness Printer took 146.43ms. Allocated memory is still 136.3MB. Free memory was 49.6MB in the beginning and 32.7MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. 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 - CounterExampleResult [Line: 1757]: 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)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1105] CALL ssl3_accept(s) [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->info_callback={0:-2147483648}, skip=0, SSLv3_server_data={4:0}, Time=5, tmp=5] [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, Time=5, tmp=5, tmp___1=0] [L1161] EXPR s->cert VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->cert={-1073741817:0}, skip=0, SSLv3_server_data={4:0}, Time=5, tmp=5, tmp___1=0] [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, Time=5, tmp=5, tmp___1=0] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, got_new_session=0, init=1, ret=4294967295, s={14:0}, s={14:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 VAL [={0:-2147483648}, blastFlag=1, got_new_session=0, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1167] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=5, tmp=5, tmp___1=0] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1378] COND FALSE !(ret <= 0) [L1383] s->hit VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->hit=0, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1383] COND FALSE !(s->hit) [L1386] s->state = 8512 VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1388] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1167] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=5, tmp=5, tmp___1=0] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8512, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1209] COND TRUE s->state == 8512 [L1392] EXPR s->s3 [L1392] EXPR (s->s3)->tmp.new_cipher [L1392] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:-2147483648}, ((s->s3)->tmp.new_cipher)->algorithms=0, (s->s3)->tmp.new_cipher={7:0}, blastFlag=2, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1392] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1395] ret = __VERIFIER_nondet_int() [L1396] COND TRUE blastFlag == 2 [L1397] blastFlag = 6 VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1401] COND FALSE !(ret <= 0) VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1407] s->state = 8528 [L1408] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1167] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8512, Time=5, tmp=5, tmp___1=0] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, ret=1073741824, s={14:0}, s={14:0}, s->state=8528, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1215] COND TRUE s->state == 8528 [L1412] EXPR s->s3 [L1412] EXPR (s->s3)->tmp.new_cipher [L1412] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1412] l = ((s->s3)->tmp.new_cipher)->algorithms [L1413] EXPR s->options VAL [={0:-2147483648}, blastFlag=6, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->options=2097152, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1413] COND TRUE s->options & 2097152UL [L1414] EXPR s->s3 [L1414] (s->s3)->tmp.use_rsa_tmp = 1 [L1418] EXPR s->s3 [L1418] (s->s3)->tmp.use_rsa_tmp VAL [={0:-2147483648}, (s->s3)->tmp.use_rsa_tmp=1, blastFlag=6, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1418] COND TRUE (s->s3)->tmp.use_rsa_tmp [L1436] ret = __VERIFIER_nondet_int() [L1437] COND TRUE blastFlag == 6 [L1438] blastFlag = 7 VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1442] COND FALSE !(ret <= 0) VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1459] s->state = 8544 [L1460] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1167] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8528, Time=5, tmp=5, tmp___1=0] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->state=8544, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1221] COND TRUE s->state == 8544 [L1464] EXPR s->verify_mode VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->verify_mode=1, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1464] COND TRUE s->verify_mode & 1 [L1465] EXPR s->session [L1465] EXPR (s->session)->peer VAL [={0:-2147483648}, (s->session)->peer={0:0}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->session={-2147483645:0}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1465] COND FALSE !((unsigned long )(s->session)->peer != (unsigned long )((void *)0)) [L1475] EXPR s->s3 [L1475] EXPR (s->s3)->tmp.new_cipher [L1475] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:-2147483648}, ((s->s3)->tmp.new_cipher)->algorithms=0, (s->s3)->tmp.new_cipher={7:0}, blastFlag=7, got_new_session=1, init=1, l=0, ret=1073741824, s={14:0}, s={14:0}, s->s3={-2147483641:0}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1475] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1485] EXPR s->s3 [L1485] (s->s3)->tmp.cert_request = 1 [L1486] ret = __VERIFIER_nondet_int() [L1487] COND TRUE blastFlag == 7 VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=9, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] [L1757] reach_error() VAL [={0:-2147483648}, blastFlag=7, got_new_session=1, init=1, l=0, ret=9, s={14:0}, s={14:0}, skip=0, SSLv3_server_data={4:0}, state=8544, Time=5, tmp=5, tmp___1=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.4s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 843 SdHoareTripleChecker+Valid, 29.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 843 mSDsluCounter, 3999 SdHoareTripleChecker+Invalid, 29.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 40 IncrementalHoareTripleChecker+Unchecked, 1789 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 455 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 2210 mSDtfsCounter, 455 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 638 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=906occurred in iteration=7, InterpolantAutomatonStates: 25, 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, 7 MinimizatonAttempts, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 12.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 771 NumberOfCodeBlocks, 771 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 635 ConstructedInterpolants, 1 QuantifiedInterpolants, 1250 SizeOfPredicates, 11 NumberOfNonLiveVariables, 5501 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 534/534 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! [2021-11-25 17:50:52,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cc8a518-5b2c-4f26-b327-3304155a791b/bin/utaipan-eEHZpOm5b7/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