./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs --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 7fbe34c1a2b9dce9445717580146eeee8c7271fe ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs --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 7fbe34c1a2b9dce9445717580146eeee8c7271fe .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:59:30,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:59:30,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:59:30,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:59:30,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:59:30,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:59:30,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:59:30,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:59:30,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:59:30,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:59:30,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:59:30,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:59:30,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:59:30,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:59:30,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:59:30,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:59:30,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:59:30,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:59:30,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:59:30,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:59:30,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:59:30,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:59:30,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:59:30,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:59:30,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:59:30,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:59:30,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:59:30,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:59:30,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:59:30,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:59:30,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:59:30,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:59:30,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:59:30,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:59:30,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:59:30,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:59:30,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:59:30,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:59:30,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:59:30,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:59:30,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:59:30,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 01:59:30,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:59:30,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:59:30,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:59:30,578 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:59:30,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:59:30,578 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:59:30,578 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 01:59:30,579 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:59:30,579 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:59:30,579 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 01:59:30,580 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 01:59:30,581 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:59:30,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 01:59:30,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 01:59:30,581 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 01:59:30,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:59:30,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:59:30,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 01:59:30,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:59:30,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:59:30,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:59:30,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:59:30,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:59:30,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:59:30,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:59:30,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:59:30,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:59:30,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:59:30,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:59:30,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:59:30,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:30,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:59:30,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:59:30,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:59:30,588 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 01:59:30,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 01:59:30,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:59:30,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:59:30,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:59:30,590 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_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fbe34c1a2b9dce9445717580146eeee8c7271fe [2021-10-16 01:59:30,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:59:30,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:59:30,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:59:30,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:59:30,935 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:59:30,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-16 01:59:31,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/8debe0e1c/1162b3dafaf247ae854cf95a6df17623/FLAG9ad09b97a [2021-10-16 01:59:31,626 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:59:31,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-16 01:59:31,655 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/8debe0e1c/1162b3dafaf247ae854cf95a6df17623/FLAG9ad09b97a [2021-10-16 01:59:31,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/8debe0e1c/1162b3dafaf247ae854cf95a6df17623 [2021-10-16 01:59:31,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:59:31,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:59:31,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:31,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:59:31,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:59:31,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:31" (1/1) ... [2021-10-16 01:59:31,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61058567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:31, skipping insertion in model container [2021-10-16 01:59:31,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:31" (1/1) ... [2021-10-16 01:59:31,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:59:32,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:59:32,277 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[48428,48441] [2021-10-16 01:59:32,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:32,293 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:59:32,350 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[48428,48441] [2021-10-16 01:59:32,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:32,367 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:59:32,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32 WrapperNode [2021-10-16 01:59:32,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:32,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:32,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:59:32,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:59:32,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:32,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:59:32,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:59:32,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:59:32,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:59:32,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:59:32,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:59:32,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:59:32,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (1/1) ... [2021-10-16 01:59:32,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:32,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:32,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:59:32,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:59:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 01:59:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:59:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:59:32,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:59:32,775 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 01:59:33,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-16 01:59:33,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-16 01:59:33,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:59:33,954 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 01:59:33,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:33 BoogieIcfgContainer [2021-10-16 01:59:33,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:59:33,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:59:33,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:59:33,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:59:33,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:59:31" (1/3) ... [2021-10-16 01:59:33,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c78f8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:33, skipping insertion in model container [2021-10-16 01:59:33,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:32" (2/3) ... [2021-10-16 01:59:33,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c78f8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:33, skipping insertion in model container [2021-10-16 01:59:33,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:33" (3/3) ... [2021-10-16 01:59:33,967 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2021-10-16 01:59:33,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:59:33,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:59:34,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:59:34,044 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, mConcurrency=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 [2021-10-16 01:59:34,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:59:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 1.7777777777777777) internal successors, (192), 109 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:34,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 01:59:34,077 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:34,078 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:34,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:34,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:34,092 INFO L82 PathProgramCache]: Analyzing trace with hash 631903606, now seen corresponding path program 1 times [2021-10-16 01:59:34,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:34,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913882953] [2021-10-16 01:59:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:34,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:59:34,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:34,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913882953] [2021-10-16 01:59:34,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913882953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:34,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:34,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 01:59:34,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635471802] [2021-10-16 01:59:34,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:34,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:34,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:34,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:34,454 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 1.7777777777777777) internal successors, (192), 109 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-10-16 01:59:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:34,707 INFO L93 Difference]: Finished difference Result 239 states and 416 transitions. [2021-10-16 01:59:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:34,709 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 39 [2021-10-16 01:59:34,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:34,726 INFO L225 Difference]: With dead ends: 239 [2021-10-16 01:59:34,726 INFO L226 Difference]: Without dead ends: 125 [2021-10-16 01:59:34,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-16 01:59:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-10-16 01:59:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 122 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:34,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 182 transitions. [2021-10-16 01:59:34,795 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 182 transitions. Word has length 39 [2021-10-16 01:59:34,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:34,797 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 182 transitions. [2021-10-16 01:59:34,797 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) [2021-10-16 01:59:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 182 transitions. [2021-10-16 01:59:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-16 01:59:34,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:34,802 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:34,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 01:59:34,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:34,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:34,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1646026631, now seen corresponding path program 1 times [2021-10-16 01:59:34,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:34,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887633689] [2021-10-16 01:59:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:34,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:59:34,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:34,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887633689] [2021-10-16 01:59:34,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887633689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:34,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:34,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:34,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786319788] [2021-10-16 01:59:34,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:34,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:34,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:34,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:34,915 INFO L87 Difference]: Start difference. First operand 123 states and 182 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:35,082 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2021-10-16 01:59:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:35,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-16 01:59:35,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:35,089 INFO L225 Difference]: With dead ends: 265 [2021-10-16 01:59:35,089 INFO L226 Difference]: Without dead ends: 144 [2021-10-16 01:59:35,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-16 01:59:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-10-16 01:59:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.446808510638298) internal successors, (204), 141 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 204 transitions. [2021-10-16 01:59:35,116 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 204 transitions. Word has length 53 [2021-10-16 01:59:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:35,116 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 204 transitions. [2021-10-16 01:59:35,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,117 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 204 transitions. [2021-10-16 01:59:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-16 01:59:35,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:35,120 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:35,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 01:59:35,125 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:35,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:35,133 INFO L82 PathProgramCache]: Analyzing trace with hash 156201314, now seen corresponding path program 1 times [2021-10-16 01:59:35,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:35,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466696291] [2021-10-16 01:59:35,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:35,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-16 01:59:35,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:35,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466696291] [2021-10-16 01:59:35,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466696291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:35,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:35,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 01:59:35,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8165715] [2021-10-16 01:59:35,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:59:35,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:35,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:59:35,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:35,274 INFO L87 Difference]: Start difference. First operand 142 states and 204 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:35,608 INFO L93 Difference]: Finished difference Result 356 states and 536 transitions. [2021-10-16 01:59:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:59:35,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-16 01:59:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:35,612 INFO L225 Difference]: With dead ends: 356 [2021-10-16 01:59:35,612 INFO L226 Difference]: Without dead ends: 216 [2021-10-16 01:59:35,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-10-16 01:59:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200. [2021-10-16 01:59:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.3819095477386936) internal successors, (275), 199 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 275 transitions. [2021-10-16 01:59:35,646 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 275 transitions. Word has length 70 [2021-10-16 01:59:35,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:35,646 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 275 transitions. [2021-10-16 01:59:35,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 275 transitions. [2021-10-16 01:59:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-16 01:59:35,650 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:35,651 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:35,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 01:59:35,651 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:35,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1369960997, now seen corresponding path program 1 times [2021-10-16 01:59:35,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:35,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673475953] [2021-10-16 01:59:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:35,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:59:35,786 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:35,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673475953] [2021-10-16 01:59:35,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673475953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:35,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:35,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:35,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292814235] [2021-10-16 01:59:35,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:35,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:35,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:35,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:35,795 INFO L87 Difference]: Start difference. First operand 200 states and 275 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2021-10-16 01:59:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:35,949 INFO L93 Difference]: Finished difference Result 413 states and 572 transitions. [2021-10-16 01:59:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:35,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 79 [2021-10-16 01:59:35,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:35,952 INFO L225 Difference]: With dead ends: 413 [2021-10-16 01:59:35,953 INFO L226 Difference]: Without dead ends: 215 [2021-10-16 01:59:35,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:35,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-16 01:59:35,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2021-10-16 01:59:35,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.3726415094339623) internal successors, (291), 212 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:35,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 291 transitions. [2021-10-16 01:59:35,978 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 291 transitions. Word has length 79 [2021-10-16 01:59:35,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:35,981 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 291 transitions. [2021-10-16 01:59:35,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2021-10-16 01:59:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 291 transitions. [2021-10-16 01:59:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-16 01:59:35,992 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:35,993 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-16 01:59:35,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 01:59:35,993 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1009904726, now seen corresponding path program 1 times [2021-10-16 01:59:35,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:35,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457802304] [2021-10-16 01:59:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:35,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-16 01:59:36,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:36,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457802304] [2021-10-16 01:59:36,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457802304] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:36,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:36,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:36,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438008897] [2021-10-16 01:59:36,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:36,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:36,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:36,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:36,110 INFO L87 Difference]: Start difference. First operand 213 states and 291 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:36,304 INFO L93 Difference]: Finished difference Result 492 states and 686 transitions. [2021-10-16 01:59:36,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:36,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 90 [2021-10-16 01:59:36,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:36,309 INFO L225 Difference]: With dead ends: 492 [2021-10-16 01:59:36,310 INFO L226 Difference]: Without dead ends: 278 [2021-10-16 01:59:36,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:36,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-16 01:59:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 274. [2021-10-16 01:59:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.3919413919413919) internal successors, (380), 273 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2021-10-16 01:59:36,327 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 90 [2021-10-16 01:59:36,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:36,327 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2021-10-16 01:59:36,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,328 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2021-10-16 01:59:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-16 01:59:36,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:36,330 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:36,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 01:59:36,331 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:36,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1162655929, now seen corresponding path program 1 times [2021-10-16 01:59:36,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:36,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433769617] [2021-10-16 01:59:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:36,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-16 01:59:36,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:36,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433769617] [2021-10-16 01:59:36,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433769617] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:36,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:36,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:36,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978157631] [2021-10-16 01:59:36,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:36,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:36,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:36,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:36,448 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2021-10-16 01:59:36,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:36,623 INFO L93 Difference]: Finished difference Result 579 states and 813 transitions. [2021-10-16 01:59:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:36,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 90 [2021-10-16 01:59:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:36,639 INFO L225 Difference]: With dead ends: 579 [2021-10-16 01:59:36,639 INFO L226 Difference]: Without dead ends: 307 [2021-10-16 01:59:36,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-10-16 01:59:36,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 297. [2021-10-16 01:59:36,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.3716216216216217) internal successors, (406), 296 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 406 transitions. [2021-10-16 01:59:36,651 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 406 transitions. Word has length 90 [2021-10-16 01:59:36,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:36,652 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 406 transitions. [2021-10-16 01:59:36,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2021-10-16 01:59:36,652 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 406 transitions. [2021-10-16 01:59:36,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-10-16 01:59:36,670 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:36,670 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:36,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 01:59:36,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:36,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:36,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1582887163, now seen corresponding path program 1 times [2021-10-16 01:59:36,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:36,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441272346] [2021-10-16 01:59:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:36,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:36,788 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-10-16 01:59:36,788 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:36,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441272346] [2021-10-16 01:59:36,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441272346] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:36,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:36,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:36,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672959168] [2021-10-16 01:59:36,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:36,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:36,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:36,791 INFO L87 Difference]: Start difference. First operand 297 states and 406 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:36,951 INFO L93 Difference]: Finished difference Result 625 states and 866 transitions. [2021-10-16 01:59:36,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:36,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 114 [2021-10-16 01:59:36,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:36,955 INFO L225 Difference]: With dead ends: 625 [2021-10-16 01:59:36,955 INFO L226 Difference]: Without dead ends: 330 [2021-10-16 01:59:36,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:36,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-10-16 01:59:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 322. [2021-10-16 01:59:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 434 transitions. [2021-10-16 01:59:36,968 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 434 transitions. Word has length 114 [2021-10-16 01:59:36,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:36,968 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 434 transitions. [2021-10-16 01:59:36,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 434 transitions. [2021-10-16 01:59:36,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-16 01:59:36,970 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:36,970 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:36,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 01:59:36,971 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:36,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:36,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1898997806, now seen corresponding path program 1 times [2021-10-16 01:59:36,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:36,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296651810] [2021-10-16 01:59:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:36,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-16 01:59:37,031 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:37,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296651810] [2021-10-16 01:59:37,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296651810] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:37,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:37,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:37,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642426764] [2021-10-16 01:59:37,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:37,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:37,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:37,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:37,034 INFO L87 Difference]: Start difference. First operand 322 states and 434 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:37,208 INFO L93 Difference]: Finished difference Result 649 states and 876 transitions. [2021-10-16 01:59:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:37,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-10-16 01:59:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:37,212 INFO L225 Difference]: With dead ends: 649 [2021-10-16 01:59:37,212 INFO L226 Difference]: Without dead ends: 328 [2021-10-16 01:59:37,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-10-16 01:59:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 325. [2021-10-16 01:59:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.345679012345679) internal successors, (436), 324 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 436 transitions. [2021-10-16 01:59:37,225 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 436 transitions. Word has length 128 [2021-10-16 01:59:37,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:37,226 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 436 transitions. [2021-10-16 01:59:37,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,226 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 436 transitions. [2021-10-16 01:59:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-16 01:59:37,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:37,228 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:37,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 01:59:37,229 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:37,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:37,230 INFO L82 PathProgramCache]: Analyzing trace with hash -738700198, now seen corresponding path program 1 times [2021-10-16 01:59:37,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:37,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128483305] [2021-10-16 01:59:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:37,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-16 01:59:37,293 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:37,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128483305] [2021-10-16 01:59:37,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128483305] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:37,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:37,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:37,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972252148] [2021-10-16 01:59:37,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:37,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:37,296 INFO L87 Difference]: Start difference. First operand 325 states and 436 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:37,429 INFO L93 Difference]: Finished difference Result 677 states and 919 transitions. [2021-10-16 01:59:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:37,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-10-16 01:59:37,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:37,432 INFO L225 Difference]: With dead ends: 677 [2021-10-16 01:59:37,432 INFO L226 Difference]: Without dead ends: 354 [2021-10-16 01:59:37,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-16 01:59:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 352. [2021-10-16 01:59:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 351 states have (on average 1.3276353276353277) internal successors, (466), 351 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 466 transitions. [2021-10-16 01:59:37,445 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 466 transitions. Word has length 136 [2021-10-16 01:59:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:37,446 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 466 transitions. [2021-10-16 01:59:37,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 466 transitions. [2021-10-16 01:59:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-16 01:59:37,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:37,448 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:37,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 01:59:37,449 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:37,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1679129214, now seen corresponding path program 1 times [2021-10-16 01:59:37,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:37,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965902459] [2021-10-16 01:59:37,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:37,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-16 01:59:37,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:37,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965902459] [2021-10-16 01:59:37,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965902459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:37,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:37,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:59:37,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9717673] [2021-10-16 01:59:37,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:37,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:59:37,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:37,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:37,502 INFO L87 Difference]: Start difference. First operand 352 states and 466 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:37,632 INFO L93 Difference]: Finished difference Result 731 states and 981 transitions. [2021-10-16 01:59:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:37,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-10-16 01:59:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:37,636 INFO L225 Difference]: With dead ends: 731 [2021-10-16 01:59:37,636 INFO L226 Difference]: Without dead ends: 381 [2021-10-16 01:59:37,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-10-16 01:59:37,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-10-16 01:59:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.3105263157894738) internal successors, (498), 380 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 498 transitions. [2021-10-16 01:59:37,649 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 498 transitions. Word has length 141 [2021-10-16 01:59:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:37,650 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 498 transitions. [2021-10-16 01:59:37,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:37,650 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 498 transitions. [2021-10-16 01:59:37,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-16 01:59:37,653 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:37,653 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:37,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 01:59:37,653 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:37,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:37,654 INFO L82 PathProgramCache]: Analyzing trace with hash -2100832630, now seen corresponding path program 1 times [2021-10-16 01:59:37,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:37,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218841074] [2021-10-16 01:59:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:37,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-16 01:59:37,721 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:59:37,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218841074] [2021-10-16 01:59:37,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218841074] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:59:37,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434120777] [2021-10-16 01:59:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:37,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:59:37,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:37,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:59:37,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 01:59:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:37,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:59:37,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-16 01:59:38,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-16 01:59:38,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434120777] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:59:38,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [689114111] [2021-10-16 01:59:38,823 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-10-16 01:59:38,823 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 01:59:38,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 01:59:38,839 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 01:59:38,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 01:59:39,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,115 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 01:59:39,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 01:59:39,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 01:59:39,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 01:59:39,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-10-16 01:59:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,309 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 01:59:39,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 01:59:39,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 01:59:39,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 01:59:39,321 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 01:59:39,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,416 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 01:59:39,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 01:59:39,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 01:59:39,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 01:59:39,426 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 01:59:39,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:59:39,537 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 01:59:39,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 01:59:39,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 01:59:39,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 01:59:39,546 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 01:59:39,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:59:39,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:59:39,854 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.3 percent of original size [2021-10-16 01:59:39,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1071 [2021-10-16 01:59:39,900 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-16 01:59:39,901 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:1137, output treesize:1071 [2021-10-16 01:59:39,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:40,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:59:40,124 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_21| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 01:59:40,127 INFO L168 Benchmark]: Toolchain (without parser) took 8170.34 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 82.4 MB in the beginning and 38.8 MB in the end (delta: 43.7 MB). Peak memory consumption was 77.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:40,127 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 81.8 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:59:40,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.07 ms. Allocated memory is still 115.3 MB. Free memory was 82.2 MB in the beginning and 87.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:40,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.09 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 84.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:40,131 INFO L168 Benchmark]: Boogie Preprocessor took 69.07 ms. Allocated memory is still 115.3 MB. Free memory was 84.4 MB in the beginning and 82.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:40,132 INFO L168 Benchmark]: RCFGBuilder took 1442.40 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 74.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:40,132 INFO L168 Benchmark]: TraceAbstraction took 6167.38 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 73.4 MB in the beginning and 38.8 MB in the end (delta: 34.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:40,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 81.8 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.07 ms. Allocated memory is still 115.3 MB. Free memory was 82.2 MB in the beginning and 87.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.09 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 84.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.07 ms. Allocated memory is still 115.3 MB. Free memory was 84.4 MB in the beginning and 82.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1442.40 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 74.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6167.38 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 73.4 MB in the beginning and 38.8 MB in the end (delta: 34.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_21| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_21|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 01:59:40,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:59:42,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:59:42,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:59:42,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:59:42,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:59:42,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:59:42,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:59:42,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:59:42,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:59:42,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:59:42,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:59:42,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:59:42,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:59:42,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:59:42,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:59:42,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:59:42,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:59:42,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:59:42,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:59:42,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:59:42,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:59:42,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:59:42,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:59:42,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:59:42,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:59:42,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:59:42,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:59:42,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:59:42,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:59:42,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:59:42,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:59:42,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:59:42,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:59:42,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:59:42,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:59:42,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:59:42,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:59:42,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:59:42,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:59:42,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:59:42,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:59:42,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 01:59:42,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:59:42,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:59:42,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:59:42,812 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:59:42,812 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:59:42,813 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:59:42,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:59:42,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:59:42,813 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:59:42,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:59:42,815 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:59:42,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:59:42,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:59:42,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:59:42,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:59:42,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:59:42,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:59:42,816 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 01:59:42,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 01:59:42,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:59:42,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:59:42,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:59:42,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:59:42,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:59:42,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 01:59:42,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:59:42,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:42,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:59:42,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:59:42,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:59:42,820 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 01:59:42,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 01:59:42,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:59:42,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:59:42,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:59:42,821 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_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fbe34c1a2b9dce9445717580146eeee8c7271fe [2021-10-16 01:59:43,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:59:43,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:59:43,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:59:43,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:59:43,322 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:59:43,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-16 01:59:43,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/597f8deb6/241a5b5b36ae48b0810090bba374ab48/FLAGdf7f2bf1f [2021-10-16 01:59:43,940 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:59:43,940 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-16 01:59:43,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/597f8deb6/241a5b5b36ae48b0810090bba374ab48/FLAGdf7f2bf1f [2021-10-16 01:59:44,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/data/597f8deb6/241a5b5b36ae48b0810090bba374ab48 [2021-10-16 01:59:44,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:59:44,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:59:44,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:44,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:59:44,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:59:44,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5667ab6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44, skipping insertion in model container [2021-10-16 01:59:44,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:59:44,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:59:44,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[48428,48441] [2021-10-16 01:59:44,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:44,655 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:59:44,715 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[48428,48441] [2021-10-16 01:59:44,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:44,749 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:59:44,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44 WrapperNode [2021-10-16 01:59:44,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:44,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:44,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:59:44,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:59:44,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:44,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:59:44,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:59:44,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:59:44,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:59:44,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:59:44,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:59:44,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:59:44,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (1/1) ... [2021-10-16 01:59:44,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:44,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:44,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:59:44,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:59:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 01:59:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:59:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:59:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:59:45,121 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 01:59:45,670 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-16 01:59:45,671 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-16 01:59:45,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:59:45,681 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 01:59:45,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:45 BoogieIcfgContainer [2021-10-16 01:59:45,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:59:45,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:59:45,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:59:45,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:59:45,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:59:44" (1/3) ... [2021-10-16 01:59:45,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a53e863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:45, skipping insertion in model container [2021-10-16 01:59:45,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:44" (2/3) ... [2021-10-16 01:59:45,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a53e863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:45, skipping insertion in model container [2021-10-16 01:59:45,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:45" (3/3) ... [2021-10-16 01:59:45,692 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2021-10-16 01:59:45,698 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:59:45,698 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:59:45,752 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:59:45,759 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, mConcurrency=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 [2021-10-16 01:59:45,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:59:45,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 156 states have (on average 1.7564102564102564) internal successors, (274), 157 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-16 01:59:45,793 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:45,794 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:45,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:45,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:45,800 INFO L82 PathProgramCache]: Analyzing trace with hash -443745208, now seen corresponding path program 1 times [2021-10-16 01:59:45,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:45,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463616972] [2021-10-16 01:59:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:45,813 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:45,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:45,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:45,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 01:59:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:45,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 01:59:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:59:46,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:59:46,315 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:46,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463616972] [2021-10-16 01:59:46,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463616972] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:46,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:46,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:46,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822350444] [2021-10-16 01:59:46,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:46,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:46,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:46,342 INFO L87 Difference]: Start difference. First operand has 158 states, 156 states have (on average 1.7564102564102564) internal successors, (274), 157 states have internal predecessors, (274), 0 states have call successors, (0), 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 14.666666666666666) 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) [2021-10-16 01:59:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:46,537 INFO L93 Difference]: Finished difference Result 336 states and 582 transitions. [2021-10-16 01:59:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:46,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) 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 [2021-10-16 01:59:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:46,551 INFO L225 Difference]: With dead ends: 336 [2021-10-16 01:59:46,552 INFO L226 Difference]: Without dead ends: 166 [2021-10-16 01:59:46,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:46,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-16 01:59:46,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2021-10-16 01:59:46,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5617283950617284) internal successors, (253), 162 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 253 transitions. [2021-10-16 01:59:46,604 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 253 transitions. Word has length 44 [2021-10-16 01:59:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:46,604 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 253 transitions. [2021-10-16 01:59:46,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) 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) [2021-10-16 01:59:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 253 transitions. [2021-10-16 01:59:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-16 01:59:46,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:46,609 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:46,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:46,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:46,813 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:46,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:46,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1030632600, now seen corresponding path program 1 times [2021-10-16 01:59:46,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:46,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981486536] [2021-10-16 01:59:46,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:46,816 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:46,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:46,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:46,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 01:59:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:46,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:46,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:59:47,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:59:47,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:47,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981486536] [2021-10-16 01:59:47,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981486536] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:47,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:47,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:47,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648631934] [2021-10-16 01:59:47,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:47,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:47,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:47,315 INFO L87 Difference]: Start difference. First operand 163 states and 253 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:47,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:47,488 INFO L93 Difference]: Finished difference Result 343 states and 538 transitions. [2021-10-16 01:59:47,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:47,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-16 01:59:47,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:47,495 INFO L225 Difference]: With dead ends: 343 [2021-10-16 01:59:47,495 INFO L226 Difference]: Without dead ends: 188 [2021-10-16 01:59:47,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-16 01:59:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2021-10-16 01:59:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.5245901639344261) internal successors, (279), 183 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) [2021-10-16 01:59:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 279 transitions. [2021-10-16 01:59:47,527 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 279 transitions. Word has length 60 [2021-10-16 01:59:47,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:47,527 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 279 transitions. [2021-10-16 01:59:47,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 279 transitions. [2021-10-16 01:59:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-16 01:59:47,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:47,542 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:47,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:47,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:47,747 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:47,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash 18153750, now seen corresponding path program 1 times [2021-10-16 01:59:47,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:47,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382467151] [2021-10-16 01:59:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:47,749 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:47,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:47,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:47,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 01:59:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:47,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:47,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 01:59:48,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 01:59:48,322 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:48,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382467151] [2021-10-16 01:59:48,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382467151] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:48,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:48,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 01:59:48,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154890455] [2021-10-16 01:59:48,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:59:48,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:48,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:59:48,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:48,344 INFO L87 Difference]: Start difference. First operand 184 states and 279 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:48,654 INFO L93 Difference]: Finished difference Result 457 states and 722 transitions. [2021-10-16 01:59:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:59:48,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 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 81 [2021-10-16 01:59:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:48,660 INFO L225 Difference]: With dead ends: 457 [2021-10-16 01:59:48,661 INFO L226 Difference]: Without dead ends: 281 [2021-10-16 01:59:48,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:48,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-16 01:59:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 264. [2021-10-16 01:59:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.5095057034220531) internal successors, (397), 263 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 397 transitions. [2021-10-16 01:59:48,699 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 397 transitions. Word has length 81 [2021-10-16 01:59:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:48,708 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 397 transitions. [2021-10-16 01:59:48,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 397 transitions. [2021-10-16 01:59:48,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-16 01:59:48,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:48,714 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:48,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:48,924 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:48,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1510748766, now seen corresponding path program 1 times [2021-10-16 01:59:48,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:48,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220905567] [2021-10-16 01:59:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:48,926 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:48,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:48,927 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:48,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 01:59:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:49,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:49,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 01:59:49,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 01:59:49,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:49,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220905567] [2021-10-16 01:59:49,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220905567] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:49,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:49,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:49,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779569521] [2021-10-16 01:59:49,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:49,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:49,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:49,542 INFO L87 Difference]: Start difference. First operand 264 states and 397 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:49,696 INFO L93 Difference]: Finished difference Result 548 states and 831 transitions. [2021-10-16 01:59:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:49,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 82 [2021-10-16 01:59:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:49,699 INFO L225 Difference]: With dead ends: 548 [2021-10-16 01:59:49,700 INFO L226 Difference]: Without dead ends: 292 [2021-10-16 01:59:49,700 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:49,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-16 01:59:49,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 287. [2021-10-16 01:59:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.486013986013986) internal successors, (425), 286 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:49,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 425 transitions. [2021-10-16 01:59:49,717 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 425 transitions. Word has length 82 [2021-10-16 01:59:49,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:49,717 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 425 transitions. [2021-10-16 01:59:49,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:49,718 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 425 transitions. [2021-10-16 01:59:49,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-16 01:59:49,720 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:49,720 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:49,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:49,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:49,932 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:49,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:49,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1273577226, now seen corresponding path program 1 times [2021-10-16 01:59:49,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:49,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780980320] [2021-10-16 01:59:49,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:49,934 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:49,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:49,936 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:49,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 01:59:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:50,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:50,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:50,465 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 01:59:50,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 01:59:50,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:50,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780980320] [2021-10-16 01:59:50,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780980320] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:50,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:50,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:50,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994613222] [2021-10-16 01:59:50,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:50,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:50,706 INFO L87 Difference]: Start difference. First operand 287 states and 425 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:50,877 INFO L93 Difference]: Finished difference Result 605 states and 907 transitions. [2021-10-16 01:59:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-10-16 01:59:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:50,880 INFO L225 Difference]: With dead ends: 605 [2021-10-16 01:59:50,880 INFO L226 Difference]: Without dead ends: 326 [2021-10-16 01:59:50,881 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:50,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-10-16 01:59:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 312. [2021-10-16 01:59:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.4630225080385852) internal successors, (455), 311 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 455 transitions. [2021-10-16 01:59:50,895 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 455 transitions. Word has length 103 [2021-10-16 01:59:50,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:50,896 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 455 transitions. [2021-10-16 01:59:50,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 455 transitions. [2021-10-16 01:59:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-16 01:59:50,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:50,899 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-16 01:59:50,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:51,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:51,111 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:51,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1830490624, now seen corresponding path program 1 times [2021-10-16 01:59:51,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:51,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679127421] [2021-10-16 01:59:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:51,112 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:51,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:51,114 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:51,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 01:59:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:51,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:51,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 01:59:51,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 01:59:51,973 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:51,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679127421] [2021-10-16 01:59:51,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679127421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:51,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:51,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 01:59:51,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204858106] [2021-10-16 01:59:51,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:59:51,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:51,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:59:51,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:51,979 INFO L87 Difference]: Start difference. First operand 312 states and 455 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:52,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:52,184 INFO L93 Difference]: Finished difference Result 1214 states and 1773 transitions. [2021-10-16 01:59:52,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:59:52,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 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 122 [2021-10-16 01:59:52,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:52,191 INFO L225 Difference]: With dead ends: 1214 [2021-10-16 01:59:52,192 INFO L226 Difference]: Without dead ends: 910 [2021-10-16 01:59:52,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-16 01:59:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2021-10-16 01:59:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.4378437843784377) internal successors, (1307), 909 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1307 transitions. [2021-10-16 01:59:52,230 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1307 transitions. Word has length 122 [2021-10-16 01:59:52,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:52,231 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1307 transitions. [2021-10-16 01:59:52,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1307 transitions. [2021-10-16 01:59:52,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-16 01:59:52,235 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:52,235 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:52,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:52,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:52,449 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:52,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1195862027, now seen corresponding path program 1 times [2021-10-16 01:59:52,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:52,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832050884] [2021-10-16 01:59:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:52,451 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:52,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:52,452 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:52,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 01:59:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:52,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:52,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-16 01:59:53,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-16 01:59:53,428 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:53,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832050884] [2021-10-16 01:59:53,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832050884] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:53,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:53,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:53,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122793164] [2021-10-16 01:59:53,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:53,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:53,430 INFO L87 Difference]: Start difference. First operand 910 states and 1307 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:53,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:53,516 INFO L93 Difference]: Finished difference Result 1836 states and 2632 transitions. [2021-10-16 01:59:53,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:53,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-10-16 01:59:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:53,523 INFO L225 Difference]: With dead ends: 1836 [2021-10-16 01:59:53,523 INFO L226 Difference]: Without dead ends: 934 [2021-10-16 01:59:53,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-10-16 01:59:53,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2021-10-16 01:59:53,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 933 states have (on average 1.4319399785637728) internal successors, (1336), 933 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1336 transitions. [2021-10-16 01:59:53,558 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1336 transitions. Word has length 123 [2021-10-16 01:59:53,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:53,558 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1336 transitions. [2021-10-16 01:59:53,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:53,559 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1336 transitions. [2021-10-16 01:59:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-16 01:59:53,562 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:53,562 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:53,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:53,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:53,778 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:53,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:53,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1077420553, now seen corresponding path program 1 times [2021-10-16 01:59:53,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:53,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243323456] [2021-10-16 01:59:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:53,780 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:53,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:53,781 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:53,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 01:59:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:54,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:54,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-10-16 01:59:54,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-10-16 01:59:54,746 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:54,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243323456] [2021-10-16 01:59:54,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243323456] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:54,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:54,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:54,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997580437] [2021-10-16 01:59:54,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:54,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:54,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:54,749 INFO L87 Difference]: Start difference. First operand 934 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:54,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:54,821 INFO L93 Difference]: Finished difference Result 1873 states and 2674 transitions. [2021-10-16 01:59:54,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:54,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 123 [2021-10-16 01:59:54,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:54,828 INFO L225 Difference]: With dead ends: 1873 [2021-10-16 01:59:54,828 INFO L226 Difference]: Without dead ends: 947 [2021-10-16 01:59:54,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:54,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2021-10-16 01:59:54,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2021-10-16 01:59:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 1.4260042283298098) internal successors, (1349), 946 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1349 transitions. [2021-10-16 01:59:54,862 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1349 transitions. Word has length 123 [2021-10-16 01:59:54,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:54,863 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1349 transitions. [2021-10-16 01:59:54,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:54,863 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1349 transitions. [2021-10-16 01:59:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-10-16 01:59:54,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:54,866 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:54,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:55,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:55,083 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:55,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:55,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1240056652, now seen corresponding path program 1 times [2021-10-16 01:59:55,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:55,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864149056] [2021-10-16 01:59:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:55,085 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:55,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:55,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:55,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 01:59:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:55,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:55,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-16 01:59:55,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-16 01:59:56,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:56,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864149056] [2021-10-16 01:59:56,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864149056] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:56,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:56,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 01:59:56,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934607880] [2021-10-16 01:59:56,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:59:56,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:56,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:59:56,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:56,010 INFO L87 Difference]: Start difference. First operand 947 states and 1349 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 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) [2021-10-16 01:59:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:56,099 INFO L93 Difference]: Finished difference Result 3680 states and 5237 transitions. [2021-10-16 01:59:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:59:56,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 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 131 [2021-10-16 01:59:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:56,119 INFO L225 Difference]: With dead ends: 3680 [2021-10-16 01:59:56,119 INFO L226 Difference]: Without dead ends: 2754 [2021-10-16 01:59:56,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:56,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-10-16 01:59:56,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 950. [2021-10-16 01:59:56,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 1.4246575342465753) internal successors, (1352), 949 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:56,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1352 transitions. [2021-10-16 01:59:56,179 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1352 transitions. Word has length 131 [2021-10-16 01:59:56,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:56,179 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 1352 transitions. [2021-10-16 01:59:56,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 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) [2021-10-16 01:59:56,180 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1352 transitions. [2021-10-16 01:59:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-10-16 01:59:56,182 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:56,183 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:56,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:56,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:56,396 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:56,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1126637942, now seen corresponding path program 1 times [2021-10-16 01:59:56,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:56,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506328233] [2021-10-16 01:59:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:56,398 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:56,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:56,399 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:56,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 01:59:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:56,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 01:59:56,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 01:59:57,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 01:59:57,643 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:57,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506328233] [2021-10-16 01:59:57,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506328233] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:57,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:57,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-16 01:59:57,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500519204] [2021-10-16 01:59:57,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 01:59:57,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:57,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 01:59:57,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:59:57,646 INFO L87 Difference]: Start difference. First operand 950 states and 1352 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:57,886 INFO L93 Difference]: Finished difference Result 3047 states and 4286 transitions. [2021-10-16 01:59:57,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 01:59:57,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 131 [2021-10-16 01:59:57,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:57,900 INFO L225 Difference]: With dead ends: 3047 [2021-10-16 01:59:57,900 INFO L226 Difference]: Without dead ends: 2118 [2021-10-16 01:59:57,905 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 72.2ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-16 01:59:57,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2021-10-16 01:59:57,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1231. [2021-10-16 01:59:57,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1230 states have (on average 1.4065040650406504) internal successors, (1730), 1230 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1730 transitions. [2021-10-16 01:59:57,984 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1730 transitions. Word has length 131 [2021-10-16 01:59:57,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:57,985 INFO L470 AbstractCegarLoop]: Abstraction has 1231 states and 1730 transitions. [2021-10-16 01:59:57,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:57,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1730 transitions. [2021-10-16 01:59:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-16 01:59:57,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:57,989 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:58,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:58,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:58,204 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:58,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:58,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2047407937, now seen corresponding path program 1 times [2021-10-16 01:59:58,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:58,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957744800] [2021-10-16 01:59:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:58,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:58,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:58,207 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:58,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 01:59:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:58,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:59:58,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:59,013 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-16 01:59:59,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-16 01:59:59,281 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:59,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957744800] [2021-10-16 01:59:59,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957744800] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:59,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:59,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:59:59,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399564705] [2021-10-16 01:59:59,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:59:59,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:59,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:59:59,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:59,290 INFO L87 Difference]: Start difference. First operand 1231 states and 1730 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:59,496 INFO L93 Difference]: Finished difference Result 2561 states and 3664 transitions. [2021-10-16 01:59:59,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:59,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-10-16 01:59:59,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:59,507 INFO L225 Difference]: With dead ends: 2561 [2021-10-16 01:59:59,507 INFO L226 Difference]: Without dead ends: 1375 [2021-10-16 01:59:59,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:59:59,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2021-10-16 01:59:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1339. [2021-10-16 01:59:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 1.3886397608370702) internal successors, (1858), 1338 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1858 transitions. [2021-10-16 01:59:59,603 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1858 transitions. Word has length 132 [2021-10-16 01:59:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:59,604 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 1858 transitions. [2021-10-16 01:59:59,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:59:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1858 transitions. [2021-10-16 01:59:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-16 01:59:59,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:59,608 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:59:59,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:59,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:59,822 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:59,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2082237169, now seen corresponding path program 1 times [2021-10-16 01:59:59,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:59,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645937562] [2021-10-16 01:59:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:59,823 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:59,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:59,824 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:59,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:00:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:00,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:00,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-16 02:00:00,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-16 02:00:01,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:01,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645937562] [2021-10-16 02:00:01,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645937562] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:01,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:01,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:01,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277234483] [2021-10-16 02:00:01,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:01,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:01,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:01,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:01,026 INFO L87 Difference]: Start difference. First operand 1339 states and 1858 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:01,256 INFO L93 Difference]: Finished difference Result 2757 states and 3886 transitions. [2021-10-16 02:00:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:01,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 155 [2021-10-16 02:00:01,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:01,265 INFO L225 Difference]: With dead ends: 2757 [2021-10-16 02:00:01,266 INFO L226 Difference]: Without dead ends: 1463 [2021-10-16 02:00:01,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-10-16 02:00:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1455. [2021-10-16 02:00:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1454 states have (on average 1.3713892709766162) internal successors, (1994), 1454 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1994 transitions. [2021-10-16 02:00:01,358 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1994 transitions. Word has length 155 [2021-10-16 02:00:01,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:01,358 INFO L470 AbstractCegarLoop]: Abstraction has 1455 states and 1994 transitions. [2021-10-16 02:00:01,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1994 transitions. [2021-10-16 02:00:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-10-16 02:00:01,362 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:01,362 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:01,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:01,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:01,576 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:01,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:01,576 INFO L82 PathProgramCache]: Analyzing trace with hash 78022700, now seen corresponding path program 1 times [2021-10-16 02:00:01,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:01,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107309930] [2021-10-16 02:00:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:01,578 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:01,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:01,579 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:01,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 02:00:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:02,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:02,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-16 02:00:02,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-16 02:00:02,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:02,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107309930] [2021-10-16 02:00:02,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107309930] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:02,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:02,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:02,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809381424] [2021-10-16 02:00:02,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:02,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:02,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:02,899 INFO L87 Difference]: Start difference. First operand 1455 states and 1994 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:03,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:03,124 INFO L93 Difference]: Finished difference Result 2989 states and 4166 transitions. [2021-10-16 02:00:03,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:03,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 161 [2021-10-16 02:00:03,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:03,134 INFO L225 Difference]: With dead ends: 2989 [2021-10-16 02:00:03,135 INFO L226 Difference]: Without dead ends: 1579 [2021-10-16 02:00:03,137 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-10-16 02:00:03,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1579. [2021-10-16 02:00:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 1.3548795944233207) internal successors, (2138), 1578 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2138 transitions. [2021-10-16 02:00:03,209 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2138 transitions. Word has length 161 [2021-10-16 02:00:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:03,210 INFO L470 AbstractCegarLoop]: Abstraction has 1579 states and 2138 transitions. [2021-10-16 02:00:03,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2138 transitions. [2021-10-16 02:00:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-10-16 02:00:03,214 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:03,214 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:03,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:03,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:03,428 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:03,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:03,428 INFO L82 PathProgramCache]: Analyzing trace with hash -212433663, now seen corresponding path program 1 times [2021-10-16 02:00:03,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:03,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59294798] [2021-10-16 02:00:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:03,429 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:03,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:03,431 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:03,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-16 02:00:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:04,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:00:04,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-16 02:00:04,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-16 02:00:05,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:05,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59294798] [2021-10-16 02:00:05,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59294798] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:05,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1256788768] [2021-10-16 02:00:05,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:05,417 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:05,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:00:05,419 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:00:05,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-16 02:00:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:06,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:06,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-10-16 02:00:07,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-10-16 02:00:07,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1256788768] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:07,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:00:07,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 6 [2021-10-16 02:00:07,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062758843] [2021-10-16 02:00:07,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:07,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:07,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:07,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:00:07,544 INFO L87 Difference]: Start difference. First operand 1579 states and 2138 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:07,797 INFO L93 Difference]: Finished difference Result 3485 states and 4752 transitions. [2021-10-16 02:00:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:07,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 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 188 [2021-10-16 02:00:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:07,813 INFO L225 Difference]: With dead ends: 3485 [2021-10-16 02:00:07,814 INFO L226 Difference]: Without dead ends: 2339 [2021-10-16 02:00:07,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.3ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:00:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2021-10-16 02:00:07,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2339. [2021-10-16 02:00:07,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 1.3545765611633875) internal successors, (3167), 2338 states have internal predecessors, (3167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:07,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3167 transitions. [2021-10-16 02:00:07,949 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3167 transitions. Word has length 188 [2021-10-16 02:00:07,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:07,950 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3167 transitions. [2021-10-16 02:00:07,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3167 transitions. [2021-10-16 02:00:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-10-16 02:00:07,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:07,960 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:07,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:08,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:08,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:08,376 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:08,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:08,377 INFO L82 PathProgramCache]: Analyzing trace with hash 321583963, now seen corresponding path program 1 times [2021-10-16 02:00:08,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:08,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092599392] [2021-10-16 02:00:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:08,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:08,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:08,378 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:08,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 02:00:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:09,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:09,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-10-16 02:00:09,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-10-16 02:00:10,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:10,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092599392] [2021-10-16 02:00:10,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092599392] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:10,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:10,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:10,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058278298] [2021-10-16 02:00:10,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:10,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:10,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:10,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:10,478 INFO L87 Difference]: Start difference. First operand 2339 states and 3167 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:10,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:10,697 INFO L93 Difference]: Finished difference Result 4628 states and 6288 transitions. [2021-10-16 02:00:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:10,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 261 [2021-10-16 02:00:10,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:10,716 INFO L225 Difference]: With dead ends: 4628 [2021-10-16 02:00:10,716 INFO L226 Difference]: Without dead ends: 2722 [2021-10-16 02:00:10,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:10,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-10-16 02:00:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2722. [2021-10-16 02:00:10,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2721 states have (on average 1.3509739066519661) internal successors, (3676), 2721 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3676 transitions. [2021-10-16 02:00:10,851 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3676 transitions. Word has length 261 [2021-10-16 02:00:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:10,852 INFO L470 AbstractCegarLoop]: Abstraction has 2722 states and 3676 transitions. [2021-10-16 02:00:10,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3676 transitions. [2021-10-16 02:00:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-10-16 02:00:10,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:10,865 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:10,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:11,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:11,082 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:11,083 INFO L82 PathProgramCache]: Analyzing trace with hash 848978013, now seen corresponding path program 1 times [2021-10-16 02:00:11,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:11,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118995645] [2021-10-16 02:00:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:11,084 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:11,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:11,085 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:11,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-16 02:00:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:12,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:12,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-10-16 02:00:12,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-10-16 02:00:13,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:13,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118995645] [2021-10-16 02:00:13,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118995645] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:13,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:13,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:13,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254239373] [2021-10-16 02:00:13,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:13,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:13,279 INFO L87 Difference]: Start difference. First operand 2722 states and 3676 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:13,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:13,433 INFO L93 Difference]: Finished difference Result 5045 states and 6819 transitions. [2021-10-16 02:00:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:13,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 261 [2021-10-16 02:00:13,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:13,449 INFO L225 Difference]: With dead ends: 5045 [2021-10-16 02:00:13,450 INFO L226 Difference]: Without dead ends: 2756 [2021-10-16 02:00:13,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:13,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2021-10-16 02:00:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2756. [2021-10-16 02:00:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2755 states have (on average 1.3491833030852995) internal successors, (3717), 2755 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3717 transitions. [2021-10-16 02:00:13,590 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3717 transitions. Word has length 261 [2021-10-16 02:00:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:13,591 INFO L470 AbstractCegarLoop]: Abstraction has 2756 states and 3717 transitions. [2021-10-16 02:00:13,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3717 transitions. [2021-10-16 02:00:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-10-16 02:00:13,603 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:13,603 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:13,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:13,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:13,821 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:13,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:13,821 INFO L82 PathProgramCache]: Analyzing trace with hash -168204123, now seen corresponding path program 1 times [2021-10-16 02:00:13,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:13,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662339255] [2021-10-16 02:00:13,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:13,823 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:13,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:13,824 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:13,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-16 02:00:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:15,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:15,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2021-10-16 02:00:15,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2021-10-16 02:00:16,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:16,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662339255] [2021-10-16 02:00:16,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662339255] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:16,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:16,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:16,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749498357] [2021-10-16 02:00:16,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:16,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:16,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:16,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:16,256 INFO L87 Difference]: Start difference. First operand 2756 states and 3717 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:16,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:16,533 INFO L93 Difference]: Finished difference Result 5609 states and 7621 transitions. [2021-10-16 02:00:16,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:16,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 292 [2021-10-16 02:00:16,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:16,551 INFO L225 Difference]: With dead ends: 5609 [2021-10-16 02:00:16,551 INFO L226 Difference]: Without dead ends: 2898 [2021-10-16 02:00:16,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-10-16 02:00:16,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2876. [2021-10-16 02:00:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 1.3450434782608696) internal successors, (3867), 2875 states have internal predecessors, (3867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3867 transitions. [2021-10-16 02:00:16,693 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3867 transitions. Word has length 292 [2021-10-16 02:00:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:16,694 INFO L470 AbstractCegarLoop]: Abstraction has 2876 states and 3867 transitions. [2021-10-16 02:00:16,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:16,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3867 transitions. [2021-10-16 02:00:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-10-16 02:00:16,706 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:16,706 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:16,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:16,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:16,919 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:16,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:16,920 INFO L82 PathProgramCache]: Analyzing trace with hash 994023995, now seen corresponding path program 1 times [2021-10-16 02:00:16,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:16,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040254168] [2021-10-16 02:00:16,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:16,920 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:16,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:16,921 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:16,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-16 02:00:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:18,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:18,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-16 02:00:18,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-16 02:00:19,310 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:19,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040254168] [2021-10-16 02:00:19,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040254168] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:19,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:19,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:19,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071237311] [2021-10-16 02:00:19,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:19,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:19,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:19,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:19,313 INFO L87 Difference]: Start difference. First operand 2876 states and 3867 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:19,553 INFO L93 Difference]: Finished difference Result 5932 states and 8088 transitions. [2021-10-16 02:00:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 294 [2021-10-16 02:00:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:19,575 INFO L225 Difference]: With dead ends: 5932 [2021-10-16 02:00:19,575 INFO L226 Difference]: Without dead ends: 3101 [2021-10-16 02:00:19,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2021-10-16 02:00:19,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 3080. [2021-10-16 02:00:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3079 states have (on average 1.331925949983761) internal successors, (4101), 3079 states have internal predecessors, (4101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4101 transitions. [2021-10-16 02:00:19,753 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4101 transitions. Word has length 294 [2021-10-16 02:00:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:19,753 INFO L470 AbstractCegarLoop]: Abstraction has 3080 states and 4101 transitions. [2021-10-16 02:00:19,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:19,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4101 transitions. [2021-10-16 02:00:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-10-16 02:00:19,769 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:19,770 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:19,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:19,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:19,985 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:19,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1500458674, now seen corresponding path program 1 times [2021-10-16 02:00:19,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:19,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654688249] [2021-10-16 02:00:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:19,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:19,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:19,988 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:19,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-16 02:00:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:21,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:21,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-10-16 02:00:22,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-10-16 02:00:22,627 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:22,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654688249] [2021-10-16 02:00:22,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654688249] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:22,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:22,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:22,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770387331] [2021-10-16 02:00:22,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:22,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:22,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:22,630 INFO L87 Difference]: Start difference. First operand 3080 states and 4101 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:22,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:22,903 INFO L93 Difference]: Finished difference Result 6388 states and 8648 transitions. [2021-10-16 02:00:22,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:22,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 326 [2021-10-16 02:00:22,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:22,918 INFO L225 Difference]: With dead ends: 6388 [2021-10-16 02:00:22,918 INFO L226 Difference]: Without dead ends: 3353 [2021-10-16 02:00:22,923 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2021-10-16 02:00:23,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 3332. [2021-10-16 02:00:23,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3331 states have (on average 1.3173221254878416) internal successors, (4388), 3331 states have internal predecessors, (4388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:23,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4388 transitions. [2021-10-16 02:00:23,070 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4388 transitions. Word has length 326 [2021-10-16 02:00:23,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:23,071 INFO L470 AbstractCegarLoop]: Abstraction has 3332 states and 4388 transitions. [2021-10-16 02:00:23,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:23,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4388 transitions. [2021-10-16 02:00:23,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-16 02:00:23,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:23,082 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:23,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:23,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:23,297 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:23,297 INFO L82 PathProgramCache]: Analyzing trace with hash -484834399, now seen corresponding path program 1 times [2021-10-16 02:00:23,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:23,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025696723] [2021-10-16 02:00:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:23,298 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:23,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:23,300 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:23,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-16 02:00:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:24,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:24,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-10-16 02:00:25,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-10-16 02:00:26,392 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:26,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025696723] [2021-10-16 02:00:26,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025696723] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:26,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:26,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:26,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596522124] [2021-10-16 02:00:26,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:26,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:26,395 INFO L87 Difference]: Start difference. First operand 3332 states and 4388 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:26,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:26,643 INFO L93 Difference]: Finished difference Result 6941 states and 9300 transitions. [2021-10-16 02:00:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:26,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-10-16 02:00:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:26,654 INFO L225 Difference]: With dead ends: 6941 [2021-10-16 02:00:26,654 INFO L226 Difference]: Without dead ends: 3654 [2021-10-16 02:00:26,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:26,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2021-10-16 02:00:26,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3598. [2021-10-16 02:00:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3597 states have (on average 1.3035863219349457) internal successors, (4689), 3597 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4689 transitions. [2021-10-16 02:00:26,785 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4689 transitions. Word has length 360 [2021-10-16 02:00:26,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:26,786 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 4689 transitions. [2021-10-16 02:00:26,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4689 transitions. [2021-10-16 02:00:26,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-10-16 02:00:26,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:26,818 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:26,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:27,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:27,033 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:27,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:27,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2110825527, now seen corresponding path program 1 times [2021-10-16 02:00:27,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:27,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324198352] [2021-10-16 02:00:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:27,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:27,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:27,036 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:27,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-16 02:00:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:28,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:28,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2021-10-16 02:00:29,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2021-10-16 02:00:31,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:31,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324198352] [2021-10-16 02:00:31,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324198352] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:31,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:31,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:31,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360041941] [2021-10-16 02:00:31,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:31,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:31,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:31,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:31,073 INFO L87 Difference]: Start difference. First operand 3598 states and 4689 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:31,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:31,221 INFO L93 Difference]: Finished difference Result 10477 states and 13692 transitions. [2021-10-16 02:00:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:31,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 372 [2021-10-16 02:00:31,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:31,240 INFO L225 Difference]: With dead ends: 10477 [2021-10-16 02:00:31,240 INFO L226 Difference]: Without dead ends: 6924 [2021-10-16 02:00:31,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6924 states. [2021-10-16 02:00:31,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6924 to 6922. [2021-10-16 02:00:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6922 states, 6921 states have (on average 1.305591677503251) internal successors, (9036), 6921 states have internal predecessors, (9036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:31,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 9036 transitions. [2021-10-16 02:00:31,549 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 9036 transitions. Word has length 372 [2021-10-16 02:00:31,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:31,550 INFO L470 AbstractCegarLoop]: Abstraction has 6922 states and 9036 transitions. [2021-10-16 02:00:31,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:31,551 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 9036 transitions. [2021-10-16 02:00:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-10-16 02:00:31,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:31,576 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:31,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:31,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:31,792 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:31,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1021269463, now seen corresponding path program 1 times [2021-10-16 02:00:31,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:31,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182045813] [2021-10-16 02:00:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:31,794 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:31,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:31,795 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:31,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-16 02:00:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:33,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:33,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2021-10-16 02:00:34,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2021-10-16 02:00:35,753 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:35,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182045813] [2021-10-16 02:00:35,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182045813] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:35,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:35,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:00:35,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838806521] [2021-10-16 02:00:35,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:35,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:35,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:35,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:35,757 INFO L87 Difference]: Start difference. First operand 6922 states and 9036 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:36,291 INFO L93 Difference]: Finished difference Result 14453 states and 19148 transitions. [2021-10-16 02:00:36,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:36,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 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 415 [2021-10-16 02:00:36,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:36,310 INFO L225 Difference]: With dead ends: 14453 [2021-10-16 02:00:36,311 INFO L226 Difference]: Without dead ends: 7576 [2021-10-16 02:00:36,322 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2021-10-16 02:00:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7426. [2021-10-16 02:00:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7426 states, 7425 states have (on average 1.291043771043771) internal successors, (9586), 7425 states have internal predecessors, (9586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:36,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7426 states to 7426 states and 9586 transitions. [2021-10-16 02:00:36,610 INFO L78 Accepts]: Start accepts. Automaton has 7426 states and 9586 transitions. Word has length 415 [2021-10-16 02:00:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:36,611 INFO L470 AbstractCegarLoop]: Abstraction has 7426 states and 9586 transitions. [2021-10-16 02:00:36,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 7426 states and 9586 transitions. [2021-10-16 02:00:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-10-16 02:00:36,626 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:36,627 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:36,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:36,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:36,841 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:36,841 INFO L82 PathProgramCache]: Analyzing trace with hash 639999057, now seen corresponding path program 1 times [2021-10-16 02:00:36,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:36,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37496218] [2021-10-16 02:00:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:36,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:36,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:36,843 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:36,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-16 02:00:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:39,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:00:39,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1033 proven. 26 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2021-10-16 02:00:40,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:41,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1033 proven. 26 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2021-10-16 02:00:41,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:41,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37496218] [2021-10-16 02:00:41,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37496218] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:00:41,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1908730424] [2021-10-16 02:00:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:41,661 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:00:41,669 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:00:41,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-10-16 02:00:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:45,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:45,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1465 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-10-16 02:00:46,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1465 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-10-16 02:00:48,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1908730424] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:48,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:00:48,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 6 [2021-10-16 02:00:48,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330815551] [2021-10-16 02:00:48,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:48,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:48,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:00:48,193 INFO L87 Difference]: Start difference. First operand 7426 states and 9586 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:48,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:48,562 INFO L93 Difference]: Finished difference Result 14827 states and 19172 transitions. [2021-10-16 02:00:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:48,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 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 438 [2021-10-16 02:00:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:48,585 INFO L225 Difference]: With dead ends: 14827 [2021-10-16 02:00:48,585 INFO L226 Difference]: Without dead ends: 8535 [2021-10-16 02:00:48,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1748 GetRequests, 1744 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:00:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8535 states. [2021-10-16 02:00:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8535 to 8535. [2021-10-16 02:00:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8534 states have (on average 1.2876728380595266) internal successors, (10989), 8534 states have internal predecessors, (10989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 10989 transitions. [2021-10-16 02:00:48,962 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 10989 transitions. Word has length 438 [2021-10-16 02:00:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:48,963 INFO L470 AbstractCegarLoop]: Abstraction has 8535 states and 10989 transitions. [2021-10-16 02:00:48,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 10989 transitions. [2021-10-16 02:00:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2021-10-16 02:00:48,980 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:48,981 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:49,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:49,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:49,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:00:49,404 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:49,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1358832970, now seen corresponding path program 1 times [2021-10-16 02:00:49,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:49,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221060748] [2021-10-16 02:00:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:49,406 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:49,407 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:49,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-16 02:00:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:52,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:52,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 1014 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2021-10-16 02:00:53,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:00:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 1014 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2021-10-16 02:00:54,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:00:54,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221060748] [2021-10-16 02:00:54,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221060748] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:54,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:54,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:00:54,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926752413] [2021-10-16 02:00:54,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:00:54,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:00:54,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:00:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:54,322 INFO L87 Difference]: Start difference. First operand 8535 states and 10989 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:54,552 INFO L93 Difference]: Finished difference Result 15936 states and 20529 transitions. [2021-10-16 02:00:54,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:00:54,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 441 [2021-10-16 02:00:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:54,568 INFO L225 Difference]: With dead ends: 15936 [2021-10-16 02:00:54,568 INFO L226 Difference]: Without dead ends: 8535 [2021-10-16 02:00:54,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 879 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:00:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8535 states. [2021-10-16 02:00:54,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8535 to 8535. [2021-10-16 02:00:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8534 states have (on average 1.2836887743145067) internal successors, (10955), 8534 states have internal predecessors, (10955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 10955 transitions. [2021-10-16 02:00:54,866 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 10955 transitions. Word has length 441 [2021-10-16 02:00:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:54,867 INFO L470 AbstractCegarLoop]: Abstraction has 8535 states and 10955 transitions. [2021-10-16 02:00:54,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:00:54,867 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 10955 transitions. [2021-10-16 02:00:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-10-16 02:00:54,881 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:54,881 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:54,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-16 02:00:55,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:00:55,097 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:00:55,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:55,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1924107258, now seen corresponding path program 1 times [2021-10-16 02:00:55,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:00:55,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863522171] [2021-10-16 02:00:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:55,099 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:00:55,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:00:55,100 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:00:55,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-16 02:00:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:57,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:00:57,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:00:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1120 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-10-16 02:00:58,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1120 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-10-16 02:01:00,002 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:00,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863522171] [2021-10-16 02:01:00,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863522171] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:00,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:01:00,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:01:00,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780362968] [2021-10-16 02:01:00,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:01:00,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:00,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:01:00,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:00,004 INFO L87 Difference]: Start difference. First operand 8535 states and 10955 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 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) [2021-10-16 02:01:00,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:00,252 INFO L93 Difference]: Finished difference Result 16018 states and 20555 transitions. [2021-10-16 02:01:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:01:00,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 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) Word has length 442 [2021-10-16 02:01:00,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:00,269 INFO L225 Difference]: With dead ends: 16018 [2021-10-16 02:01:00,269 INFO L226 Difference]: Without dead ends: 8617 [2021-10-16 02:01:00,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2021-10-16 02:01:00,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 8617. [2021-10-16 02:01:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8617 states, 8616 states have (on average 1.2821494893221912) internal successors, (11047), 8616 states have internal predecessors, (11047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 11047 transitions. [2021-10-16 02:01:00,588 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 11047 transitions. Word has length 442 [2021-10-16 02:01:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:00,589 INFO L470 AbstractCegarLoop]: Abstraction has 8617 states and 11047 transitions. [2021-10-16 02:01:00,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 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) [2021-10-16 02:01:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 11047 transitions. [2021-10-16 02:01:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-10-16 02:01:00,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:00,605 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:00,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:00,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:00,829 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:00,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:00,830 INFO L82 PathProgramCache]: Analyzing trace with hash 646017800, now seen corresponding path program 1 times [2021-10-16 02:01:00,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:00,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396296176] [2021-10-16 02:01:00,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:00,831 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:00,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:00,833 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:00,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-16 02:01:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:03,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:03,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:05,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1162 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-10-16 02:01:05,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1162 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-10-16 02:01:06,110 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:06,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396296176] [2021-10-16 02:01:06,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396296176] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:06,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:01:06,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:01:06,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932114818] [2021-10-16 02:01:06,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:01:06,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:06,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:01:06,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:06,113 INFO L87 Difference]: Start difference. First operand 8617 states and 11047 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:06,384 INFO L93 Difference]: Finished difference Result 16178 states and 20735 transitions. [2021-10-16 02:01:06,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:01:06,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 442 [2021-10-16 02:01:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:06,398 INFO L225 Difference]: With dead ends: 16178 [2021-10-16 02:01:06,398 INFO L226 Difference]: Without dead ends: 8695 [2021-10-16 02:01:06,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:06,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-10-16 02:01:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 8695. [2021-10-16 02:01:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8695 states, 8694 states have (on average 1.2807683459857373) internal successors, (11135), 8694 states have internal predecessors, (11135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8695 states to 8695 states and 11135 transitions. [2021-10-16 02:01:06,661 INFO L78 Accepts]: Start accepts. Automaton has 8695 states and 11135 transitions. Word has length 442 [2021-10-16 02:01:06,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:06,662 INFO L470 AbstractCegarLoop]: Abstraction has 8695 states and 11135 transitions. [2021-10-16 02:01:06,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8695 states and 11135 transitions. [2021-10-16 02:01:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-10-16 02:01:06,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:06,674 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:06,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:06,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:06,889 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash 677654922, now seen corresponding path program 1 times [2021-10-16 02:01:06,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:06,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272713224] [2021-10-16 02:01:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:06,891 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:06,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:06,892 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:06,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-16 02:01:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:10,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:10,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-10-16 02:01:10,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-10-16 02:01:11,826 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:11,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272713224] [2021-10-16 02:01:11,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272713224] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:11,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:01:11,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:01:11,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175066698] [2021-10-16 02:01:11,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:01:11,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:11,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:01:11,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:11,828 INFO L87 Difference]: Start difference. First operand 8695 states and 11135 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:12,069 INFO L93 Difference]: Finished difference Result 16330 states and 20907 transitions. [2021-10-16 02:01:12,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:01:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 442 [2021-10-16 02:01:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:12,078 INFO L225 Difference]: With dead ends: 16330 [2021-10-16 02:01:12,078 INFO L226 Difference]: Without dead ends: 8769 [2021-10-16 02:01:12,082 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:12,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2021-10-16 02:01:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8769. [2021-10-16 02:01:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8769 states, 8768 states have (on average 1.2795392335766422) internal successors, (11219), 8768 states have internal predecessors, (11219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8769 states to 8769 states and 11219 transitions. [2021-10-16 02:01:12,292 INFO L78 Accepts]: Start accepts. Automaton has 8769 states and 11219 transitions. Word has length 442 [2021-10-16 02:01:12,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:12,293 INFO L470 AbstractCegarLoop]: Abstraction has 8769 states and 11219 transitions. [2021-10-16 02:01:12,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:12,293 INFO L276 IsEmpty]: Start isEmpty. Operand 8769 states and 11219 transitions. [2021-10-16 02:01:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-10-16 02:01:12,304 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:12,305 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:12,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:12,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:12,527 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:12,527 INFO L82 PathProgramCache]: Analyzing trace with hash 475366543, now seen corresponding path program 1 times [2021-10-16 02:01:12,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:12,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279437670] [2021-10-16 02:01:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:12,528 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:12,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:12,529 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:12,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-16 02:01:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:15,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:15,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 26 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2021-10-16 02:01:16,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 26 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2021-10-16 02:01:17,747 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:17,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279437670] [2021-10-16 02:01:17,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279437670] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:17,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [561550900] [2021-10-16 02:01:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:17,748 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:01:17,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:01:17,749 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:01:17,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-10-16 02:01:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:22,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:22,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 0 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2021-10-16 02:01:23,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 0 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2021-10-16 02:01:24,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [561550900] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:24,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:01:24,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 02:01:24,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596970931] [2021-10-16 02:01:24,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:01:24,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:24,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:01:24,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:01:24,859 INFO L87 Difference]: Start difference. First operand 8769 states and 11219 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:25,308 INFO L93 Difference]: Finished difference Result 18426 states and 23651 transitions. [2021-10-16 02:01:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:01:25,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 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 551 [2021-10-16 02:01:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:25,323 INFO L225 Difference]: With dead ends: 18426 [2021-10-16 02:01:25,323 INFO L226 Difference]: Without dead ends: 10791 [2021-10-16 02:01:25,328 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2200 GetRequests, 2194 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:01:25,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2021-10-16 02:01:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 10791. [2021-10-16 02:01:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10791 states, 10790 states have (on average 1.282947173308619) internal successors, (13843), 10790 states have internal predecessors, (13843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10791 states to 10791 states and 13843 transitions. [2021-10-16 02:01:25,621 INFO L78 Accepts]: Start accepts. Automaton has 10791 states and 13843 transitions. Word has length 551 [2021-10-16 02:01:25,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:25,622 INFO L470 AbstractCegarLoop]: Abstraction has 10791 states and 13843 transitions. [2021-10-16 02:01:25,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 10791 states and 13843 transitions. [2021-10-16 02:01:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2021-10-16 02:01:25,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:25,638 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:25,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:25,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-10-16 02:01:26,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:26,058 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:26,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1109045983, now seen corresponding path program 1 times [2021-10-16 02:01:26,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:26,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629374633] [2021-10-16 02:01:26,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:26,060 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:26,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:26,061 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-16 02:01:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:29,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:29,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3565 backedges. 2030 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2021-10-16 02:01:31,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3565 backedges. 2030 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2021-10-16 02:01:32,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:32,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629374633] [2021-10-16 02:01:32,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629374633] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:32,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:01:32,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:01:32,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661279357] [2021-10-16 02:01:32,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:01:32,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:32,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:01:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:32,340 INFO L87 Difference]: Start difference. First operand 10791 states and 13843 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:32,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:32,539 INFO L93 Difference]: Finished difference Result 20540 states and 26341 transitions. [2021-10-16 02:01:32,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:01:32,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 593 [2021-10-16 02:01:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:32,549 INFO L225 Difference]: With dead ends: 20540 [2021-10-16 02:01:32,550 INFO L226 Difference]: Without dead ends: 10883 [2021-10-16 02:01:32,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 1183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:01:32,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-10-16 02:01:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10883. [2021-10-16 02:01:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10883 states, 10882 states have (on average 1.2814739937511488) internal successors, (13945), 10882 states have internal predecessors, (13945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:32,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10883 states to 10883 states and 13945 transitions. [2021-10-16 02:01:32,885 INFO L78 Accepts]: Start accepts. Automaton has 10883 states and 13945 transitions. Word has length 593 [2021-10-16 02:01:32,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:32,885 INFO L470 AbstractCegarLoop]: Abstraction has 10883 states and 13945 transitions. [2021-10-16 02:01:32,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand 10883 states and 13945 transitions. [2021-10-16 02:01:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2021-10-16 02:01:32,903 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:32,903 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:32,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:33,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:33,129 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:33,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:33,129 INFO L82 PathProgramCache]: Analyzing trace with hash -609123778, now seen corresponding path program 1 times [2021-10-16 02:01:33,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:33,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389666375] [2021-10-16 02:01:33,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:33,130 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:33,131 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:33,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-16 02:01:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:36,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:36,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2021-10-16 02:01:38,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2021-10-16 02:01:40,212 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:40,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389666375] [2021-10-16 02:01:40,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389666375] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:40,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1340751481] [2021-10-16 02:01:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:40,212 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:01:40,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:01:40,213 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:01:40,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2021-10-16 02:01:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:45,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:01:45,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 2746 proven. 0 refuted. 0 times theorem prover too weak. 2933 trivial. 0 not checked. [2021-10-16 02:01:47,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 2746 proven. 0 refuted. 0 times theorem prover too weak. 2933 trivial. 0 not checked. [2021-10-16 02:01:49,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1340751481] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:01:49,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:01:49,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 02:01:49,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936473939] [2021-10-16 02:01:49,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:01:49,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:01:49,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:01:49,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:01:49,311 INFO L87 Difference]: Start difference. First operand 10883 states and 13945 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:49,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:01:49,572 INFO L93 Difference]: Finished difference Result 21663 states and 27792 transitions. [2021-10-16 02:01:49,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:01:49,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 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 743 [2021-10-16 02:01:49,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:01:49,629 INFO L225 Difference]: With dead ends: 21663 [2021-10-16 02:01:49,629 INFO L226 Difference]: Without dead ends: 11914 [2021-10-16 02:01:49,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2968 GetRequests, 2963 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:01:49,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11914 states. [2021-10-16 02:01:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11914 to 11914. [2021-10-16 02:01:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11914 states, 11913 states have (on average 1.2811214639469488) internal successors, (15262), 11913 states have internal predecessors, (15262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11914 states to 11914 states and 15262 transitions. [2021-10-16 02:01:50,016 INFO L78 Accepts]: Start accepts. Automaton has 11914 states and 15262 transitions. Word has length 743 [2021-10-16 02:01:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:01:50,016 INFO L470 AbstractCegarLoop]: Abstraction has 11914 states and 15262 transitions. [2021-10-16 02:01:50,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:01:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 11914 states and 15262 transitions. [2021-10-16 02:01:50,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2021-10-16 02:01:50,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:01:50,031 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:01:50,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:50,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-16 02:01:50,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:01:50,445 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:01:50,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:01:50,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1681930955, now seen corresponding path program 1 times [2021-10-16 02:01:50,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:01:50,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287539314] [2021-10-16 02:01:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:50,447 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:01:50,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:01:50,448 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:01:50,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-16 02:01:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:01:54,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:01:54,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:01:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2021-10-16 02:01:56,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:01:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2021-10-16 02:01:58,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:01:58,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287539314] [2021-10-16 02:01:58,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287539314] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:01:58,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1376387486] [2021-10-16 02:01:58,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:01:58,330 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:01:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:01:58,345 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:01:58,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2021-10-16 02:02:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:02:05,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:02:05,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:02:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 2911 proven. 0 refuted. 0 times theorem prover too weak. 2769 trivial. 0 not checked. [2021-10-16 02:02:07,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:02:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 2911 proven. 0 refuted. 0 times theorem prover too weak. 2769 trivial. 0 not checked. [2021-10-16 02:02:08,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1376387486] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:02:08,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:02:08,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 02:02:08,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354591923] [2021-10-16 02:02:08,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:02:08,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:02:08,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:02:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:02:08,714 INFO L87 Difference]: Start difference. First operand 11914 states and 15262 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:02:09,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:02:09,100 INFO L93 Difference]: Finished difference Result 22788 states and 29183 transitions. [2021-10-16 02:02:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:02:09,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 744 [2021-10-16 02:02:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:02:09,116 INFO L225 Difference]: With dead ends: 22788 [2021-10-16 02:02:09,116 INFO L226 Difference]: Without dead ends: 12008 [2021-10-16 02:02:09,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2972 GetRequests, 2967 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:02:09,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12008 states. [2021-10-16 02:02:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12008 to 12008. [2021-10-16 02:02:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12008 states, 12007 states have (on average 1.2797534771383359) internal successors, (15366), 12007 states have internal predecessors, (15366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:02:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 15366 transitions. [2021-10-16 02:02:09,567 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 15366 transitions. Word has length 744 [2021-10-16 02:02:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:02:09,568 INFO L470 AbstractCegarLoop]: Abstraction has 12008 states and 15366 transitions. [2021-10-16 02:02:09,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:02:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 15366 transitions. [2021-10-16 02:02:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2021-10-16 02:02:09,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:02:09,589 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:02:09,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2021-10-16 02:02:09,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-16 02:02:10,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:02:10,009 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:02:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:02:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1233956165, now seen corresponding path program 1 times [2021-10-16 02:02:10,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:02:10,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704341232] [2021-10-16 02:02:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:02:10,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:02:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:02:10,011 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:02:10,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-16 02:02:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:02:15,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:02:15,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:02:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2021-10-16 02:02:17,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:02:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2021-10-16 02:02:18,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:02:18,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704341232] [2021-10-16 02:02:18,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704341232] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:02:18,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2062302114] [2021-10-16 02:02:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:02:18,963 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:02:18,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:02:18,964 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:02:18,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2021-10-16 02:02:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:02:27,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:02:27,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:02:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3084 proven. 0 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2021-10-16 02:02:29,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:02:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3084 proven. 0 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2021-10-16 02:02:30,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2062302114] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:02:30,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:02:30,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 02:02:30,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180849674] [2021-10-16 02:02:30,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:02:30,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:02:30,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:02:30,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:02:30,859 INFO L87 Difference]: Start difference. First operand 12008 states and 15366 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 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) [2021-10-16 02:02:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:02:31,165 INFO L93 Difference]: Finished difference Result 23871 states and 30588 transitions. [2021-10-16 02:02:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:02:31,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 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) Word has length 745 [2021-10-16 02:02:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:02:31,179 INFO L225 Difference]: With dead ends: 23871 [2021-10-16 02:02:31,179 INFO L226 Difference]: Without dead ends: 12997 [2021-10-16 02:02:31,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2976 GetRequests, 2971 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:02:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12997 states. [2021-10-16 02:02:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12997 to 12997. [2021-10-16 02:02:31,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12997 states, 12996 states have (on average 1.2801631271160356) internal successors, (16637), 12996 states have internal predecessors, (16637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:02:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12997 states to 12997 states and 16637 transitions. [2021-10-16 02:02:31,451 INFO L78 Accepts]: Start accepts. Automaton has 12997 states and 16637 transitions. Word has length 745 [2021-10-16 02:02:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:02:31,452 INFO L470 AbstractCegarLoop]: Abstraction has 12997 states and 16637 transitions. [2021-10-16 02:02:31,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 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) [2021-10-16 02:02:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 12997 states and 16637 transitions. [2021-10-16 02:02:31,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2021-10-16 02:02:31,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:02:31,573 INFO L512 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:02:31,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-16 02:02:31,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2021-10-16 02:02:31,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:02:31,985 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:02:31,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:02:31,986 INFO L82 PathProgramCache]: Analyzing trace with hash -593966993, now seen corresponding path program 1 times [2021-10-16 02:02:31,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:02:31,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596618694] [2021-10-16 02:02:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:02:31,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:02:31,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:02:31,988 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:02:31,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-16 02:02:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:02:37,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:02:37,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:02:40,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-16 02:02:40,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:02:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-16 02:02:42,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:02:42,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596618694] [2021-10-16 02:02:42,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596618694] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:02:42,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [799848599] [2021-10-16 02:02:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:02:42,233 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:02:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:02:42,236 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:02:42,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2021-10-16 02:02:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:02:51,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:02:51,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:02:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-16 02:02:53,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:02:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-16 02:02:55,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [799848599] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:02:55,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507577308] [2021-10-16 02:02:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:02:55,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:02:55,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:02:55,950 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:02:55,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-16 02:03:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:03:04,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:03:04,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:03:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-16 02:03:06,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:03:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-16 02:03:08,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507577308] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:03:08,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:03:08,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 02:03:08,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767825593] [2021-10-16 02:03:08,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:03:08,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:03:08,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:03:08,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:03:08,531 INFO L87 Difference]: Start difference. First operand 12997 states and 16637 transitions. Second operand has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:03:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:03:09,499 INFO L93 Difference]: Finished difference Result 21845 states and 28188 transitions. [2021-10-16 02:03:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:03:09,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 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 897 [2021-10-16 02:03:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:03:09,512 INFO L225 Difference]: With dead ends: 21845 [2021-10-16 02:03:09,512 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:03:09,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5384 GetRequests, 5376 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 42.4ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:03:09,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:03:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:03:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:03:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:03:09,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 897 [2021-10-16 02:03:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:03:09,519 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:03:09,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:03:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:03:09,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:03:09,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:03:09,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-16 02:03:09,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-10-16 02:03:09,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2021-10-16 02:03:10,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:03:10,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:03:10,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:10,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:10,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:10,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:10,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:11,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:12,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:03:16,862 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 567) no Hoare annotation was computed. [2021-10-16 02:03:16,862 INFO L853 garLoopResultBuilder]: At program point L201(lines 197 622) the Hoare annotation is: (let ((.cse1 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse3 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse1 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv9 32))) (and .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse2 .cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)))) [2021-10-16 02:03:16,863 INFO L853 garLoopResultBuilder]: At program point L168(lines 164 633) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,863 INFO L853 garLoopResultBuilder]: At program point L135(lines 134 643) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,863 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-10-16 02:03:16,863 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 478) no Hoare annotation was computed. [2021-10-16 02:03:16,863 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 369) no Hoare annotation was computed. [2021-10-16 02:03:16,863 INFO L857 garLoopResultBuilder]: For program point L367-2(lines 364 373) no Hoare annotation was computed. [2021-10-16 02:03:16,864 INFO L857 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2021-10-16 02:03:16,864 INFO L857 garLoopResultBuilder]: For program point L335-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,864 INFO L857 garLoopResultBuilder]: For program point L203(lines 203 620) no Hoare annotation was computed. [2021-10-16 02:03:16,864 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 631) no Hoare annotation was computed. [2021-10-16 02:03:16,864 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 642) no Hoare annotation was computed. [2021-10-16 02:03:16,865 INFO L853 garLoopResultBuilder]: At program point L402(lines 393 428) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,865 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 272) no Hoare annotation was computed. [2021-10-16 02:03:16,865 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 248) no Hoare annotation was computed. [2021-10-16 02:03:16,865 INFO L857 garLoopResultBuilder]: For program point L237-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,865 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 607) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 601 607) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 308) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 472) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L470-2(lines 468 478) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L206(lines 206 619) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 630) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 641) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L438(lines 438 440) no Hoare annotation was computed. [2021-10-16 02:03:16,866 INFO L857 garLoopResultBuilder]: For program point L405(lines 405 426) no Hoare annotation was computed. [2021-10-16 02:03:16,867 INFO L853 garLoopResultBuilder]: At program point L207(lines 203 620) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv10 32)) (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,867 INFO L853 garLoopResultBuilder]: At program point L174(lines 170 631) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,867 INFO L860 garLoopResultBuilder]: At program point L670(lines 109 671) the Hoare annotation is: true [2021-10-16 02:03:16,867 INFO L857 garLoopResultBuilder]: For program point L604(lines 604 606) no Hoare annotation was computed. [2021-10-16 02:03:16,867 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 412) no Hoare annotation was computed. [2021-10-16 02:03:16,867 INFO L857 garLoopResultBuilder]: For program point L572(lines 572 586) no Hoare annotation was computed. [2021-10-16 02:03:16,867 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 542) no Hoare annotation was computed. [2021-10-16 02:03:16,867 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 618) no Hoare annotation was computed. [2021-10-16 02:03:16,867 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 629) no Hoare annotation was computed. [2021-10-16 02:03:16,868 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 640) no Hoare annotation was computed. [2021-10-16 02:03:16,868 INFO L853 garLoopResultBuilder]: At program point L110-2(lines 110 669) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32))) (.cse0 (= (_ bv8528 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse8 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv12 32))) (.cse9 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))) (.cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse11 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse10 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse4 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv10 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and (= (_ bv8 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse1 .cse2 (= (_ bv8608 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (and (= (_ bv8656 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 .cse1 .cse2 .cse5 .cse6) (and .cse0 .cse7 .cse1 .cse2) (and .cse4 (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv9 32))) (and .cse4 .cse1 .cse2 (= (_ bv8592 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv7 32))) (and .cse4 .cse7 .cse1 .cse2) (and .cse8 .cse9 .cse10 .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse11 .cse1 .cse2) (and (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 (= (_ bv11 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1 .cse2 .cse6) (and .cse8 .cse9 .cse4 .cse1 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2 .cse6) (and (= (_ bv8496 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32))) (and .cse4 .cse1 .cse2 .cse3) (and .cse4 .cse11 .cse1 .cse2) (and .cse10 .cse4 .cse1 .cse2 .cse5) (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) (and (= (_ bv8464 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv0 32))))) [2021-10-16 02:03:16,868 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 525) no Hoare annotation was computed. [2021-10-16 02:03:16,868 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 246) no Hoare annotation was computed. [2021-10-16 02:03:16,868 INFO L853 garLoopResultBuilder]: At program point L177(lines 176 629) the Hoare annotation is: (let ((.cse1 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse2 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse0 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse3 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse2 .cse0 .cse3) (and .cse1 .cse2 .cse0 .cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse1 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse0 .cse3) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv12 32)) (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1 .cse2 .cse0 .cse3 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))))) [2021-10-16 02:03:16,869 INFO L853 garLoopResultBuilder]: At program point L144(lines 137 642) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv0 32)) .cse0 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,869 INFO L857 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-10-16 02:03:16,869 INFO L857 garLoopResultBuilder]: For program point L575(lines 575 585) no Hoare annotation was computed. [2021-10-16 02:03:16,869 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 385) no Hoare annotation was computed. [2021-10-16 02:03:16,869 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 617) no Hoare annotation was computed. [2021-10-16 02:03:16,870 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 628) no Hoare annotation was computed. [2021-10-16 02:03:16,870 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 639) no Hoare annotation was computed. [2021-10-16 02:03:16,870 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 650) no Hoare annotation was computed. [2021-10-16 02:03:16,870 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 677) no Hoare annotation was computed. [2021-10-16 02:03:16,870 INFO L857 garLoopResultBuilder]: For program point L675-2(lines 675 677) no Hoare annotation was computed. [2021-10-16 02:03:16,870 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 524) no Hoare annotation was computed. [2021-10-16 02:03:16,871 INFO L853 garLoopResultBuilder]: At program point L213(lines 209 618) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= (_ bv11 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,871 INFO L853 garLoopResultBuilder]: At program point L114(lines 113 650) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,871 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 558) no Hoare annotation was computed. [2021-10-16 02:03:16,871 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2021-10-16 02:03:16,871 INFO L857 garLoopResultBuilder]: For program point L446-1(lines 446 454) no Hoare annotation was computed. [2021-10-16 02:03:16,872 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 384) no Hoare annotation was computed. [2021-10-16 02:03:16,872 INFO L857 garLoopResultBuilder]: For program point L347-1(lines 347 384) no Hoare annotation was computed. [2021-10-16 02:03:16,872 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 616) no Hoare annotation was computed. [2021-10-16 02:03:16,872 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 627) no Hoare annotation was computed. [2021-10-16 02:03:16,872 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 638) no Hoare annotation was computed. [2021-10-16 02:03:16,873 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 649) no Hoare annotation was computed. [2021-10-16 02:03:16,873 INFO L857 garLoopResultBuilder]: For program point L513(lines 513 523) no Hoare annotation was computed. [2021-10-16 02:03:16,873 INFO L853 garLoopResultBuilder]: At program point L414(lines 405 426) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,873 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 381) no Hoare annotation was computed. [2021-10-16 02:03:16,873 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 325) no Hoare annotation was computed. [2021-10-16 02:03:16,874 INFO L857 garLoopResultBuilder]: For program point L315-2(lines 315 325) no Hoare annotation was computed. [2021-10-16 02:03:16,874 INFO L860 garLoopResultBuilder]: At program point L216(lines 215 616) the Hoare annotation is: true [2021-10-16 02:03:16,874 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 628) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,874 INFO L853 garLoopResultBuilder]: At program point L150(lines 146 639) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1) (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32)) .cse1))) [2021-10-16 02:03:16,874 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 557) no Hoare annotation was computed. [2021-10-16 02:03:16,874 INFO L860 garLoopResultBuilder]: At program point L680(lines 22 682) the Hoare annotation is: true [2021-10-16 02:03:16,874 INFO L853 garLoopResultBuilder]: At program point L614(lines 110 669) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32))) (.cse0 (= (_ bv8528 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse8 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv12 32))) (.cse9 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))) (.cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse11 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse10 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse4 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv10 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and (= (_ bv8 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse1 .cse2 (= (_ bv8608 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (and (= (_ bv8656 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 .cse1 .cse2 .cse5 .cse6) (and .cse0 .cse7 .cse1 .cse2) (and .cse4 (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv9 32))) (and .cse4 .cse1 .cse2 (= (_ bv8592 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv7 32))) (and .cse4 .cse7 .cse1 .cse2) (and .cse8 .cse9 .cse10 .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse11 .cse1 .cse2) (and (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 (= (_ bv11 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1 .cse2 .cse6) (and .cse8 .cse9 .cse4 .cse1 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2 .cse6) (and (= (_ bv8496 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32))) (and .cse4 .cse1 .cse2 .cse3) (and .cse4 .cse11 .cse1 .cse2) (and .cse10 .cse4 .cse1 .cse2 .cse5) (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0))) [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 583) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L581-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L449(lines 449 452) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L860 garLoopResultBuilder]: At program point L218(lines 217 616) the Hoare annotation is: true [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 626) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 637) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 648) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L483(lines 483 485) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L516-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,875 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 419) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L483-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L417-2(lines 413 426) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 287) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L285-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 556) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 321) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L319-2(lines 317 325) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L353(lines 353 379) no Hoare annotation was computed. [2021-10-16 02:03:16,876 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 264) no Hoare annotation was computed. [2021-10-16 02:03:16,877 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 625) no Hoare annotation was computed. [2021-10-16 02:03:16,877 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 636) no Hoare annotation was computed. [2021-10-16 02:03:16,877 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 647) no Hoare annotation was computed. [2021-10-16 02:03:16,877 INFO L857 garLoopResultBuilder]: For program point L651(lines 651 667) no Hoare annotation was computed. [2021-10-16 02:03:16,877 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 521) no Hoare annotation was computed. [2021-10-16 02:03:16,877 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 258) no Hoare annotation was computed. [2021-10-16 02:03:16,878 INFO L853 garLoopResultBuilder]: At program point L222(lines 116 649) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,878 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 626) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 .cse0 .cse3 .cse4 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv7 32)) .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,878 INFO L853 garLoopResultBuilder]: At program point L156(lines 152 637) the Hoare annotation is: (let ((.cse0 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse3 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse0 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1 .cse2 .cse3))) [2021-10-16 02:03:16,878 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 666) no Hoare annotation was computed. [2021-10-16 02:03:16,879 INFO L857 garLoopResultBuilder]: For program point L553(lines 553 555) no Hoare annotation was computed. [2021-10-16 02:03:16,879 INFO L853 garLoopResultBuilder]: At program point L520(lines 83 681) the Hoare annotation is: false [2021-10-16 02:03:16,879 INFO L857 garLoopResultBuilder]: For program point L553-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,879 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:03:16,879 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 658) no Hoare annotation was computed. [2021-10-16 02:03:16,880 INFO L857 garLoopResultBuilder]: For program point L653-2(lines 652 666) no Hoare annotation was computed. [2021-10-16 02:03:16,880 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 360) no Hoare annotation was computed. [2021-10-16 02:03:16,880 INFO L857 garLoopResultBuilder]: For program point L356-2(lines 356 360) no Hoare annotation was computed. [2021-10-16 02:03:16,880 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 624) no Hoare annotation was computed. [2021-10-16 02:03:16,880 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 635) no Hoare annotation was computed. [2021-10-16 02:03:16,880 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 646) no Hoare annotation was computed. [2021-10-16 02:03:16,881 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-16 02:03:16,881 INFO L857 garLoopResultBuilder]: For program point L655(lines 655 657) no Hoare annotation was computed. [2021-10-16 02:03:16,881 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:03:16,881 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-10-16 02:03:16,881 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 623) no Hoare annotation was computed. [2021-10-16 02:03:16,881 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 634) no Hoare annotation was computed. [2021-10-16 02:03:16,882 INFO L857 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-10-16 02:03:16,882 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 645) no Hoare annotation was computed. [2021-10-16 02:03:16,882 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 595) no Hoare annotation was computed. [2021-10-16 02:03:16,882 INFO L857 garLoopResultBuilder]: For program point L591-2(lines 591 595) no Hoare annotation was computed. [2021-10-16 02:03:16,882 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 428) no Hoare annotation was computed. [2021-10-16 02:03:16,883 INFO L853 garLoopResultBuilder]: At program point L195(lines 191 624) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and (= (_ bv8 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,883 INFO L853 garLoopResultBuilder]: At program point L162(lines 158 635) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse3 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse0 .cse1 .cse2 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2 .cse3) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2 .cse3))) [2021-10-16 02:03:16,883 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-10-16 02:03:16,883 INFO L857 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-10-16 02:03:16,883 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 462) no Hoare annotation was computed. [2021-10-16 02:03:16,884 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 400) no Hoare annotation was computed. [2021-10-16 02:03:16,884 INFO L857 garLoopResultBuilder]: For program point L460-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,884 INFO L860 garLoopResultBuilder]: At program point L692(lines 683 694) the Hoare annotation is: true [2021-10-16 02:03:16,884 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 622) no Hoare annotation was computed. [2021-10-16 02:03:16,884 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 633) no Hoare annotation was computed. [2021-10-16 02:03:16,884 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 644) no Hoare annotation was computed. [2021-10-16 02:03:16,885 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:03:16,885 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 679) no Hoare annotation was computed. [2021-10-16 02:03:16,885 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 664) no Hoare annotation was computed. [2021-10-16 02:03:16,885 INFO L857 garLoopResultBuilder]: For program point L495(lines 495 497) no Hoare annotation was computed. [2021-10-16 02:03:16,885 INFO L857 garLoopResultBuilder]: For program point L495-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,886 INFO L853 garLoopResultBuilder]: At program point L132(lines 128 645) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,886 INFO L857 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-10-16 02:03:16,886 INFO L857 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2021-10-16 02:03:16,886 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 375) no Hoare annotation was computed. [2021-10-16 02:03:16,886 INFO L857 garLoopResultBuilder]: For program point L298(lines 298 300) no Hoare annotation was computed. [2021-10-16 02:03:16,887 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-10-16 02:03:16,887 INFO L857 garLoopResultBuilder]: For program point L298-2(lines 219 613) no Hoare annotation was computed. [2021-10-16 02:03:16,887 INFO L853 garLoopResultBuilder]: At program point L365(lines 341 386) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse0 .cse3 .cse4 .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-16 02:03:16,887 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 621) no Hoare annotation was computed. [2021-10-16 02:03:16,887 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 632) no Hoare annotation was computed. [2021-10-16 02:03:16,888 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 643) no Hoare annotation was computed. [2021-10-16 02:03:16,888 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-10-16 02:03:16,888 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 83 681) no Hoare annotation was computed. [2021-10-16 02:03:16,893 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:03:17,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:03:17 BoogieIcfgContainer [2021-10-16 02:03:17,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:03:17,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:03:17,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:03:17,001 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:03:17,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:45" (3/4) ... [2021-10-16 02:03:17,010 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:03:17,045 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:03:17,047 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:03:17,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:03:17,050 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:03:17,237 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:03:17,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:03:17,239 INFO L168 Benchmark]: Toolchain (without parser) took 212994.43 ms. Allocated memory was 62.9 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 43.0 MB in the beginning and 960.4 MB in the end (delta: -917.4 MB). Peak memory consumption was 327.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,240 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:03:17,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.90 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 43.3 MB in the end (delta: -500.8 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.63 ms. Allocated memory is still 62.9 MB. Free memory was 43.3 MB in the beginning and 40.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,242 INFO L168 Benchmark]: Boogie Preprocessor took 58.43 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 38.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,243 INFO L168 Benchmark]: RCFGBuilder took 766.17 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 38.1 MB in the beginning and 56.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,243 INFO L168 Benchmark]: TraceAbstraction took 211314.75 ms. Allocated memory was 92.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 55.8 MB in the beginning and 974.1 MB in the end (delta: -918.3 MB). Peak memory consumption was 905.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,244 INFO L168 Benchmark]: Witness Printer took 236.48 ms. Allocated memory is still 1.3 GB. Free memory was 974.1 MB in the beginning and 960.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:03:17,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.90 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 43.3 MB in the end (delta: -500.8 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.63 ms. Allocated memory is still 62.9 MB. Free memory was 43.3 MB in the beginning and 40.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.43 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 38.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 766.17 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 38.1 MB in the beginning and 56.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 211314.75 ms. Allocated memory was 92.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 55.8 MB in the beginning and 974.1 MB in the end (delta: -918.3 MB). Peak memory consumption was 905.9 MB. Max. memory is 16.1 GB. * Witness Printer took 236.48 ms. Allocated memory is still 1.3 GB. Free memory was 974.1 MB in the beginning and 960.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 679]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 158 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 211142.1ms, OverallIterations: 33, TraceHistogramMax: 26, EmptinessCheckTime: 457.3ms, AutomataDifference: 9345.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6737.8ms, InitialAbstractionConstructionTime: 16.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9756 SDtfs, 4987 SDslu, 8382 SDs, 0 SdLazy, 3512 SolverSat, 845 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3383.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31730 GetRequests, 31654 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 332.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12997occurred in iteration=32, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5323.4ms AutomataMinimizationTime, 33 MinimizatonAttempts, 3050 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 811 NumberOfFragments, 2528 HoareAnnotationTreeSize, 28 FomulaSimplifications, 90880 FormulaSimplificationTreeSizeReduction, 2128.0ms HoareSimplificationTime, 28 FomulaSimplificationsInter, 2737 FormulaSimplificationTreeSizeReductionInter, 4589.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 811.0ms SsaConstructionTime, 4655.4ms SatisfiabilityAnalysisTime, 75155.5ms InterpolantComputationTime, 15898 NumberOfCodeBlocks, 15898 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 31714 ConstructedInterpolants, 0 QuantifiedInterpolants, 40484 SizeOfPredicates, 14 NumberOfNonLiveVariables, 18476 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 82 InterpolantComputations, 64 PerfectInterpolantSequences, 183002/183470 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((((((((((8528bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) || (((3bv32 == blastFlag && 8528bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((8bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8608bv32 == s__state)) || (((((8656bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32) && s__hit == 0bv32)) || (((8528bv32 == s__state && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && 8640bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 9bv32)) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8592bv32 == s__state) && blastFlag == 7bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && 3bv32 == s__state) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (((8528bv32 == s__state && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || (((((8672bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && 11bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (8496bv32 == s__state && blastFlag == 1bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag)) || (((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((3bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32)) || 2bv32 == blastFlag - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || ((((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32) && s__hit == 0bv32) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((8bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || ((blastFlag == 0bv32 && !(8512bv32 == s__state)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (((((((((((((((((((8528bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) || (((3bv32 == blastFlag && 8528bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((8bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8608bv32 == s__state)) || (((((8656bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32) && s__hit == 0bv32)) || (((8528bv32 == s__state && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && 8640bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 9bv32)) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8592bv32 == s__state) && blastFlag == 7bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && 3bv32 == s__state) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (((8528bv32 == s__state && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || (((((8672bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && 11bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (8496bv32 == s__state && blastFlag == 1bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag)) || (((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((3bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32)) || 2bv32 == blastFlag) || (8464bv32 == s__state && blastFlag == 0bv32) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((3bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((((8448bv32 == s__state && 2bv32 == blastFlag) || ((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag)) || ((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 7bv32) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || ((((((~bvadd64(256bv32, l) == 0bv32 && 11bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (2bv32 == blastFlag && !(8640bv32 == s__state))) || ((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || ((!(8512bv32 == s__state) && blastFlag == 1bv32) && !(8640bv32 == s__state)) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) || ((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 9bv32)) || ((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: (((((((blastFlag == 5bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) || ((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((!(8512bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((4bv32 == blastFlag && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || ((((3bv32 == blastFlag && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) RESULT: Ultimate proved your program to be correct! [2021-10-16 02:03:17,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef52033-ac63-420e-97b2-c076e36febe3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...