./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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 b6e483a8be7e7162ee15a52761c3ba925a560f4c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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 b6e483a8be7e7162ee15a52761c3ba925a560f4c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:27:27,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:27:27,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:27:27,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:27:27,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:27:27,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:27:27,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:27:27,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:27:27,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:27:27,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:27:27,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:27:27,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:27:27,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:27:27,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:27:27,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:27:27,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:27:27,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:27:27,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:27:27,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:27:27,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:27:27,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:27:27,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:27:27,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:27:27,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:27:27,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:27:27,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:27:27,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:27:27,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:27:27,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:27:27,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:27:27,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:27:27,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:27:27,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:27:27,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:27:27,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:27:27,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:27:27,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:27:27,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:27:27,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:27:27,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:27:27,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:27:27,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:27:27,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:27:27,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:27:27,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:27:27,149 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:27:27,149 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:27:27,149 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:27:27,149 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:27:27,150 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:27:27,150 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:27:27,150 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:27:27,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:27:27,151 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:27:27,151 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:27:27,151 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:27:27,151 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:27:27,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:27:27,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:27:27,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:27:27,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:27:27,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:27:27,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:27:27,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:27:27,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:27:27,154 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:27:27,154 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:27:27,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:27:27,155 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:27:27,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:27:27,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:27:27,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:27:27,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:27,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:27:27,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:27:27,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:27:27,157 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:27:27,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:27:27,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:27:27,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:27:27,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:27:27,158 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e483a8be7e7162ee15a52761c3ba925a560f4c [2021-10-16 02:27:27,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:27:27,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:27:27,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:27:27,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:27:27,469 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:27:27,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2021-10-16 02:27:27,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/3d2380129/5cf1cae6be404831b962f3f7ee47d3ea/FLAGa32985a7a [2021-10-16 02:27:27,984 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:27:27,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2021-10-16 02:27:28,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/3d2380129/5cf1cae6be404831b962f3f7ee47d3ea/FLAGa32985a7a [2021-10-16 02:27:28,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/3d2380129/5cf1cae6be404831b962f3f7ee47d3ea [2021-10-16 02:27:28,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:27:28,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:27:28,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:28,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:27:28,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:27:28,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2095f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28, skipping insertion in model container [2021-10-16 02:27:28,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:27:28,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:27:28,645 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c[43387,43400] [2021-10-16 02:27:28,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:28,659 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:27:28,717 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c[43387,43400] [2021-10-16 02:27:28,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:28,732 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:27:28,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28 WrapperNode [2021-10-16 02:27:28,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:28,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:27:28,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:27:28,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:27:28,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:27:28,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:27:28,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:27:28,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:27:28,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:27:28,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:27:28,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:27:28,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:27:28,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (1/1) ... [2021-10-16 02:27:28,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:28,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:28,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:27:28,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:27:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:27:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:27:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:27:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:27:29,081 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 02:27:29,643 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-16 02:27:29,643 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-16 02:27:29,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:27:29,985 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-16 02:27:29,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:29 BoogieIcfgContainer [2021-10-16 02:27:29,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:27:29,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:27:29,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:27:29,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:27:29,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:27:28" (1/3) ... [2021-10-16 02:27:29,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e3a0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:29, skipping insertion in model container [2021-10-16 02:27:29,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:28" (2/3) ... [2021-10-16 02:27:29,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e3a0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:29, skipping insertion in model container [2021-10-16 02:27:29,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:29" (3/3) ... [2021-10-16 02:27:29,998 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-2.c [2021-10-16 02:27:30,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:27:30,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:27:30,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:27:30,077 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 02:27:30,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:27:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.7619047619047619) internal successors, (185), 106 states have internal predecessors, (185), 0 states have call successors, (0), 0 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 02:27:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-16 02:27:30,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:30,110 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] [2021-10-16 02:27:30,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1622723200, now seen corresponding path program 1 times [2021-10-16 02:27:30,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:30,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522004595] [2021-10-16 02:27:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:30,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:30,322 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 02:27:30,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:30,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522004595] [2021-10-16 02:27:30,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522004595] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:30,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:30,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:27:30,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817593061] [2021-10-16 02:27:30,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:30,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:30,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:30,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:30,355 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.7619047619047619) internal successors, (185), 106 states have internal predecessors, (185), 0 states have call successors, (0), 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 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:30,575 INFO L93 Difference]: Finished difference Result 233 states and 402 transitions. [2021-10-16 02:27:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-16 02:27:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:30,609 INFO L225 Difference]: With dead ends: 233 [2021-10-16 02:27:30,609 INFO L226 Difference]: Without dead ends: 122 [2021-10-16 02:27:30,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-16 02:27:30,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-10-16 02:27:30,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.4789915966386555) internal successors, (176), 119 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2021-10-16 02:27:30,687 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 40 [2021-10-16 02:27:30,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:30,687 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2021-10-16 02:27:30,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2021-10-16 02:27:30,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-16 02:27:30,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:30,692 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, 1] [2021-10-16 02:27:30,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:27:30,693 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:30,698 INFO L82 PathProgramCache]: Analyzing trace with hash -645196711, now seen corresponding path program 1 times [2021-10-16 02:27:30,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:30,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230655290] [2021-10-16 02:27:30,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:30,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:30,833 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 02:27:30,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:30,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230655290] [2021-10-16 02:27:30,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230655290] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:30,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:30,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:27:30,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905531134] [2021-10-16 02:27:30,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:30,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:30,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:30,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:30,837 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:30,969 INFO L93 Difference]: Finished difference Result 259 states and 386 transitions. [2021-10-16 02:27:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-16 02:27:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:30,972 INFO L225 Difference]: With dead ends: 259 [2021-10-16 02:27:30,972 INFO L226 Difference]: Without dead ends: 141 [2021-10-16 02:27:30,974 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:27:30,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-16 02:27:30,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2021-10-16 02:27:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.434782608695652) internal successors, (198), 138 states have internal predecessors, (198), 0 states have call successors, (0), 0 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 02:27:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 198 transitions. [2021-10-16 02:27:30,986 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 198 transitions. Word has length 54 [2021-10-16 02:27:30,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:30,987 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 198 transitions. [2021-10-16 02:27:30,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:30,987 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 198 transitions. [2021-10-16 02:27:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-16 02:27:30,990 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:30,991 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, 1] [2021-10-16 02:27:30,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:27:30,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:30,992 INFO L82 PathProgramCache]: Analyzing trace with hash 431302475, now seen corresponding path program 1 times [2021-10-16 02:27:30,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:30,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816941901] [2021-10-16 02:27:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:30,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:31,096 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 02:27:31,098 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:31,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816941901] [2021-10-16 02:27:31,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816941901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:31,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:31,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:27:31,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730750266] [2021-10-16 02:27:31,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:27:31,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:31,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:27:31,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:31,104 INFO L87 Difference]: Start difference. First operand 139 states and 198 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 02:27:31,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:31,353 INFO L93 Difference]: Finished difference Result 321 states and 474 transitions. [2021-10-16 02:27:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:27:31,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 71 [2021-10-16 02:27:31,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:31,356 INFO L225 Difference]: With dead ends: 321 [2021-10-16 02:27:31,357 INFO L226 Difference]: Without dead ends: 184 [2021-10-16 02:27:31,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 02:27:31,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-16 02:27:31,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 177. [2021-10-16 02:27:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.3636363636363635) internal successors, (240), 176 states have internal predecessors, (240), 0 states have call successors, (0), 0 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 02:27:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2021-10-16 02:27:31,371 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 71 [2021-10-16 02:27:31,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:31,371 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2021-10-16 02:27:31,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 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 02:27:31,372 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2021-10-16 02:27:31,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-10-16 02:27:31,376 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:31,376 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, 1] [2021-10-16 02:27:31,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:27:31,377 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:31,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1619079326, now seen corresponding path program 1 times [2021-10-16 02:27:31,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:31,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958266545] [2021-10-16 02:27:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:31,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:31,505 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 02:27:31,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:31,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958266545] [2021-10-16 02:27:31,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958266545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:31,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:31,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:27:31,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122123713] [2021-10-16 02:27:31,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:31,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:31,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:31,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:31,509 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:31,647 INFO L93 Difference]: Finished difference Result 385 states and 536 transitions. [2021-10-16 02:27:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-10-16 02:27:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:31,649 INFO L225 Difference]: With dead ends: 385 [2021-10-16 02:27:31,649 INFO L226 Difference]: Without dead ends: 210 [2021-10-16 02:27:31,651 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 02:27:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-16 02:27:31,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 200. [2021-10-16 02:27:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.3366834170854272) internal successors, (266), 199 states have internal predecessors, (266), 0 states have call successors, (0), 0 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 02:27:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 266 transitions. [2021-10-16 02:27:31,664 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 266 transitions. Word has length 91 [2021-10-16 02:27:31,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:31,664 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 266 transitions. [2021-10-16 02:27:31,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:31,665 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 266 transitions. [2021-10-16 02:27:31,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-16 02:27:31,667 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:31,667 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:27:31,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 02:27:31,668 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:31,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:31,668 INFO L82 PathProgramCache]: Analyzing trace with hash -587478266, now seen corresponding path program 1 times [2021-10-16 02:27:31,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:31,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663048997] [2021-10-16 02:27:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:31,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:31,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:31,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663048997] [2021-10-16 02:27:31,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663048997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:27:31,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969967188] [2021-10-16 02:27:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:31,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:31,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:31,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:27:31,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:27:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:31,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:27:31,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:32,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-10-16 02:27:32,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969967188] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:27:32,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:27:32,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 7 [2021-10-16 02:27:32,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527475819] [2021-10-16 02:27:32,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:32,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:32,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:32,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:32,795 INFO L87 Difference]: Start difference. First operand 200 states and 266 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 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 02:27:32,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:32,825 INFO L93 Difference]: Finished difference Result 398 states and 530 transitions. [2021-10-16 02:27:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:32,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 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 109 [2021-10-16 02:27:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:32,830 INFO L225 Difference]: With dead ends: 398 [2021-10-16 02:27:32,830 INFO L226 Difference]: Without dead ends: 396 [2021-10-16 02:27:32,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 21.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-16 02:27:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2021-10-16 02:27:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.3367088607594937) internal successors, (528), 395 states have internal predecessors, (528), 0 states have call successors, (0), 0 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 02:27:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 528 transitions. [2021-10-16 02:27:32,867 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 528 transitions. Word has length 109 [2021-10-16 02:27:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:32,872 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 528 transitions. [2021-10-16 02:27:32,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 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 02:27:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 528 transitions. [2021-10-16 02:27:32,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-16 02:27:32,884 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:32,885 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-16 02:27:32,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:33,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:33,101 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:33,101 INFO L82 PathProgramCache]: Analyzing trace with hash -472902924, now seen corresponding path program 1 times [2021-10-16 02:27:33,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:33,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913210515] [2021-10-16 02:27:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:33,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 97 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:27:33,264 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:33,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913210515] [2021-10-16 02:27:33,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913210515] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:27:33,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333500399] [2021-10-16 02:27:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:33,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:33,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:33,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:27:33,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:27:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:33,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:33,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-10-16 02:27:33,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-10-16 02:27:34,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333500399] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:34,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:27:34,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 8 [2021-10-16 02:27:34,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680691661] [2021-10-16 02:27:34,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:27:34,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:27:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:34,176 INFO L87 Difference]: Start difference. First operand 396 states and 528 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 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 02:27:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:34,451 INFO L93 Difference]: Finished difference Result 970 states and 1382 transitions. [2021-10-16 02:27:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:27:34,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 148 [2021-10-16 02:27:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:34,456 INFO L225 Difference]: With dead ends: 970 [2021-10-16 02:27:34,456 INFO L226 Difference]: Without dead ends: 548 [2021-10-16 02:27:34,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-10-16 02:27:34,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 546. [2021-10-16 02:27:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.379816513761468) internal successors, (752), 545 states have internal predecessors, (752), 0 states have call successors, (0), 0 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 02:27:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 752 transitions. [2021-10-16 02:27:34,478 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 752 transitions. Word has length 148 [2021-10-16 02:27:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:34,478 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 752 transitions. [2021-10-16 02:27:34,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 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 02:27:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 752 transitions. [2021-10-16 02:27:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-16 02:27:34,481 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:34,482 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-16 02:27:34,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:34,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:34,697 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:34,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:34,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1313467723, now seen corresponding path program 1 times [2021-10-16 02:27:34,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:34,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160446730] [2021-10-16 02:27:34,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:34,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 172 proven. 94 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-16 02:27:34,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:34,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160446730] [2021-10-16 02:27:34,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160446730] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:27:34,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549395074] [2021-10-16 02:27:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:34,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:34,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:34,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:27:34,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:27:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:35,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:27:35,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 172 proven. 94 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-16 02:27:35,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-10-16 02:27:35,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549395074] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:27:35,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:27:35,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 7 [2021-10-16 02:27:35,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895508690] [2021-10-16 02:27:35,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:35,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:35,923 INFO L87 Difference]: Start difference. First operand 546 states and 752 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:35,960 INFO L93 Difference]: Finished difference Result 1355 states and 1870 transitions. [2021-10-16 02:27:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-10-16 02:27:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:35,968 INFO L225 Difference]: With dead ends: 1355 [2021-10-16 02:27:35,969 INFO L226 Difference]: Without dead ends: 1082 [2021-10-16 02:27:35,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:27:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2021-10-16 02:27:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1080. [2021-10-16 02:27:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 1.3809082483781279) internal successors, (1490), 1079 states have internal predecessors, (1490), 0 states have call successors, (0), 0 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 02:27:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1490 transitions. [2021-10-16 02:27:36,011 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1490 transitions. Word has length 175 [2021-10-16 02:27:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:36,011 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 1490 transitions. [2021-10-16 02:27:36,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1490 transitions. [2021-10-16 02:27:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-10-16 02:27:36,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:36,016 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2021-10-16 02:27:36,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:36,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:36,240 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:36,240 INFO L82 PathProgramCache]: Analyzing trace with hash 721968240, now seen corresponding path program 1 times [2021-10-16 02:27:36,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:36,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154988669] [2021-10-16 02:27:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:36,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-10-16 02:27:36,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:36,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154988669] [2021-10-16 02:27:36,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154988669] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:36,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:36,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:27:36,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127223662] [2021-10-16 02:27:36,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:36,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:36,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:36,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:36,363 INFO L87 Difference]: Start difference. First operand 1080 states and 1490 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 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 02:27:36,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:36,521 INFO L93 Difference]: Finished difference Result 2326 states and 3290 transitions. [2021-10-16 02:27:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:36,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 236 [2021-10-16 02:27:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:36,529 INFO L225 Difference]: With dead ends: 2326 [2021-10-16 02:27:36,529 INFO L226 Difference]: Without dead ends: 1248 [2021-10-16 02:27:36,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:36,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2021-10-16 02:27:36,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1236. [2021-10-16 02:27:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1235 states have (on average 1.3522267206477734) internal successors, (1670), 1235 states have internal predecessors, (1670), 0 states have call successors, (0), 0 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 02:27:36,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1670 transitions. [2021-10-16 02:27:36,573 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1670 transitions. Word has length 236 [2021-10-16 02:27:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:36,574 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 1670 transitions. [2021-10-16 02:27:36,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 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 02:27:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1670 transitions. [2021-10-16 02:27:36,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-10-16 02:27:36,579 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:36,579 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:27:36,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 02:27:36,580 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:36,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:36,580 INFO L82 PathProgramCache]: Analyzing trace with hash -582970149, now seen corresponding path program 1 times [2021-10-16 02:27:36,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:36,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350966188] [2021-10-16 02:27:36,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:36,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2021-10-16 02:27:36,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:36,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350966188] [2021-10-16 02:27:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350966188] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:36,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:36,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:27:36,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460470638] [2021-10-16 02:27:36,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:36,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:36,642 INFO L87 Difference]: Start difference. First operand 1236 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 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 02:27:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:36,770 INFO L93 Difference]: Finished difference Result 2602 states and 3562 transitions. [2021-10-16 02:27:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 242 [2021-10-16 02:27:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:36,779 INFO L225 Difference]: With dead ends: 2602 [2021-10-16 02:27:36,780 INFO L226 Difference]: Without dead ends: 1368 [2021-10-16 02:27:36,782 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:36,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2021-10-16 02:27:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1336. [2021-10-16 02:27:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 1.3348314606741574) internal successors, (1782), 1335 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 02:27:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1782 transitions. [2021-10-16 02:27:36,859 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1782 transitions. Word has length 242 [2021-10-16 02:27:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:36,859 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 1782 transitions. [2021-10-16 02:27:36,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 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 02:27:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1782 transitions. [2021-10-16 02:27:36,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-16 02:27:36,865 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:36,865 INFO L512 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2021-10-16 02:27:36,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 02:27:36,866 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:36,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:36,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2037972609, now seen corresponding path program 1 times [2021-10-16 02:27:36,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:36,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244831483] [2021-10-16 02:27:36,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:36,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-16 02:27:36,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:36,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244831483] [2021-10-16 02:27:36,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244831483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:36,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:36,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:27:36,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14720167] [2021-10-16 02:27:36,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:36,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:36,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:36,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:36,931 INFO L87 Difference]: Start difference. First operand 1336 states and 1782 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 02:27:37,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:37,104 INFO L93 Difference]: Finished difference Result 2696 states and 3594 transitions. [2021-10-16 02:27:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:37,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 246 [2021-10-16 02:27:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:37,113 INFO L225 Difference]: With dead ends: 2696 [2021-10-16 02:27:37,113 INFO L226 Difference]: Without dead ends: 1358 [2021-10-16 02:27:37,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2021-10-16 02:27:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1340. [2021-10-16 02:27:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 1.3248693054518297) internal successors, (1774), 1339 states have internal predecessors, (1774), 0 states have call successors, (0), 0 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 02:27:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1774 transitions. [2021-10-16 02:27:37,164 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1774 transitions. Word has length 246 [2021-10-16 02:27:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:37,165 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 1774 transitions. [2021-10-16 02:27:37,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 02:27:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1774 transitions. [2021-10-16 02:27:37,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-10-16 02:27:37,170 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:37,170 INFO L512 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:27:37,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 02:27:37,171 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:37,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:37,171 INFO L82 PathProgramCache]: Analyzing trace with hash -273448082, now seen corresponding path program 1 times [2021-10-16 02:27:37,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:37,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313586929] [2021-10-16 02:27:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:37,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-10-16 02:27:37,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:37,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313586929] [2021-10-16 02:27:37,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313586929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:37,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:37,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:27:37,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146048694] [2021-10-16 02:27:37,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:37,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:27:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:37,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:37,229 INFO L87 Difference]: Start difference. First operand 1340 states and 1774 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 02:27:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:37,367 INFO L93 Difference]: Finished difference Result 2794 states and 3742 transitions. [2021-10-16 02:27:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:37,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 264 [2021-10-16 02:27:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:37,377 INFO L225 Difference]: With dead ends: 2794 [2021-10-16 02:27:37,377 INFO L226 Difference]: Without dead ends: 1456 [2021-10-16 02:27:37,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:37,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-10-16 02:27:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1448. [2021-10-16 02:27:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 1.308914996544575) internal successors, (1894), 1447 states have internal predecessors, (1894), 0 states have call successors, (0), 0 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 02:27:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1894 transitions. [2021-10-16 02:27:37,452 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1894 transitions. Word has length 264 [2021-10-16 02:27:37,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:37,452 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 1894 transitions. [2021-10-16 02:27:37,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 02:27:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1894 transitions. [2021-10-16 02:27:37,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-10-16 02:27:37,458 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:37,459 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 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] [2021-10-16 02:27:37,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 02:27:37,459 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:37,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1372661796, now seen corresponding path program 1 times [2021-10-16 02:27:37,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:27:37,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692687493] [2021-10-16 02:27:37,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:37,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:27:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:37,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 710 proven. 25 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-10-16 02:27:37,531 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:27:37,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692687493] [2021-10-16 02:27:37,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692687493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:27:37,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566273027] [2021-10-16 02:27:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:37,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:37,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:37,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:27:37,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 02:27:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:37,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:27:37,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 710 proven. 25 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-10-16 02:27:38,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 710 proven. 25 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-10-16 02:27:39,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566273027] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:27:39,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1971308953] [2021-10-16 02:27:39,143 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2021-10-16 02:27:39,143 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:27:39,152 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:27:39,157 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:27:39,158 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:27:40,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,147 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:27:40,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:27:40,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:27:40,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:27:40,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-10-16 02:27:40,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,302 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:27:40,303 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 02:27:40,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:27:40,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:27:40,317 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:27:40,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,394 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:27:40,394 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 02:27:40,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:27:40,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:27:40,403 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:27:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:27:40,489 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:27:40,490 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 02:27:40,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:27:40,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:27:40,496 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 02:27:40,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:27:40,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:27:40,663 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.1 percent of original size [2021-10-16 02:27:40,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 951 [2021-10-16 02:27:40,687 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-16 02:27:40,688 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:1017, output treesize:951 [2021-10-16 02:27:40,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:40,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:40,917 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 02:27:40,920 INFO L168 Benchmark]: Toolchain (without parser) took 12557.73 ms. Allocated memory was 94.4 MB in the beginning and 243.3 MB in the end (delta: 148.9 MB). Free memory was 59.1 MB in the beginning and 99.1 MB in the end (delta: -40.0 MB). Peak memory consumption was 108.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:40,921 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 94.4 MB. Free memory was 63.9 MB in the beginning and 63.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:27:40,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.63 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 58.9 MB in the beginning and 109.5 MB in the end (delta: -50.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:40,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.01 ms. Allocated memory is still 138.4 MB. Free memory was 109.5 MB in the beginning and 106.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:40,922 INFO L168 Benchmark]: Boogie Preprocessor took 42.26 ms. Allocated memory is still 138.4 MB. Free memory was 106.8 MB in the beginning and 104.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:40,922 INFO L168 Benchmark]: RCFGBuilder took 1138.30 ms. Allocated memory is still 138.4 MB. Free memory was 104.7 MB in the beginning and 94.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:40,922 INFO L168 Benchmark]: TraceAbstraction took 10929.62 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 93.7 MB in the beginning and 99.1 MB in the end (delta: -5.4 MB). Peak memory consumption was 98.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:40,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 94.4 MB. Free memory was 63.9 MB in the beginning and 63.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.63 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 58.9 MB in the beginning and 109.5 MB in the end (delta: -50.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.01 ms. Allocated memory is still 138.4 MB. Free memory was 109.5 MB in the beginning and 106.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.26 ms. Allocated memory is still 138.4 MB. Free memory was 106.8 MB in the beginning and 104.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1138.30 ms. Allocated memory is still 138.4 MB. Free memory was 104.7 MB in the beginning and 94.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10929.62 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 93.7 MB in the beginning and 99.1 MB in the end (delta: -5.4 MB). Peak memory consumption was 98.9 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 02:27:40,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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 02:27:43,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:27:43,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:27:43,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:27:43,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:27:43,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:27:43,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:27:43,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:27:43,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:27:43,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:27:43,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:27:43,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:27:43,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:27:43,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:27:43,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:27:43,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:27:43,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:27:43,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:27:43,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:27:43,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:27:43,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:27:43,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:27:43,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:27:43,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:27:43,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:27:43,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:27:43,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:27:43,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:27:43,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:27:43,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:27:43,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:27:43,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:27:43,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:27:43,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:27:43,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:27:43,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:27:43,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:27:43,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:27:43,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:27:43,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:27:43,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:27:43,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:27:43,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:27:43,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:27:43,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:27:43,414 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:27:43,415 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:27:43,415 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:27:43,415 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:27:43,416 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:27:43,416 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:27:43,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:27:43,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:27:43,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:27:43,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:27:43,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:27:43,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:27:43,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:27:43,420 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:27:43,420 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:27:43,421 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:27:43,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:27:43,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:27:43,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:27:43,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:27:43,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:27:43,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:27:43,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:27:43,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:43,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:27:43,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:27:43,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:27:43,424 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:27:43,424 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:27:43,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:27:43,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:27:43,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:27:43,426 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e483a8be7e7162ee15a52761c3ba925a560f4c [2021-10-16 02:27:43,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:27:43,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:27:43,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:27:43,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:27:43,846 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:27:43,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2021-10-16 02:27:43,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/6640384bf/468609ee31e644c7aa2427d63690f817/FLAG6b8d0aa80 [2021-10-16 02:27:44,483 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:27:44,484 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2021-10-16 02:27:44,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/6640384bf/468609ee31e644c7aa2427d63690f817/FLAG6b8d0aa80 [2021-10-16 02:27:44,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/data/6640384bf/468609ee31e644c7aa2427d63690f817 [2021-10-16 02:27:44,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:27:44,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:27:44,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:44,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:27:44,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:27:44,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:44" (1/1) ... [2021-10-16 02:27:44,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e674a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:44, skipping insertion in model container [2021-10-16 02:27:44,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:27:44" (1/1) ... [2021-10-16 02:27:44,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:27:44,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:27:45,188 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c[43387,43400] [2021-10-16 02:27:45,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:45,205 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:27:45,303 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_8180c25c-96c4-468b-80a9-44f8db5e9eb3/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c[43387,43400] [2021-10-16 02:27:45,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:27:45,318 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:27:45,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45 WrapperNode [2021-10-16 02:27:45,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:27:45,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:27:45,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:27:45,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:27:45,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:27:45,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:27:45,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:27:45,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:27:45,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:27:45,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:27:45,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:27:45,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:27:45,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (1/1) ... [2021-10-16 02:27:45,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:27:45,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:27:45,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:27:45,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:27:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:27:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:27:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:27:45,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:27:45,650 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 02:27:46,245 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-16 02:27:46,246 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-16 02:27:46,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:27:46,255 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-16 02:27:46,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:46 BoogieIcfgContainer [2021-10-16 02:27:46,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:27:46,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:27:46,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:27:46,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:27:46,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:27:44" (1/3) ... [2021-10-16 02:27:46,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0a2458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:46, skipping insertion in model container [2021-10-16 02:27:46,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:27:45" (2/3) ... [2021-10-16 02:27:46,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0a2458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:27:46, skipping insertion in model container [2021-10-16 02:27:46,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:46" (3/3) ... [2021-10-16 02:27:46,265 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-2.c [2021-10-16 02:27:46,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:27:46,271 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:27:46,338 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:27:46,344 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 02:27:46,344 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:27:46,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 141 states have (on average 1.7163120567375887) internal successors, (242), 142 states have internal predecessors, (242), 0 states have call successors, (0), 0 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 02:27:46,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-16 02:27:46,373 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:46,373 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, 1] [2021-10-16 02:27:46,374 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:46,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:46,380 INFO L82 PathProgramCache]: Analyzing trace with hash -947483280, now seen corresponding path program 1 times [2021-10-16 02:27:46,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:46,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865171853] [2021-10-16 02:27:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:46,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:46,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:46,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:27:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:46,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:27:46,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:46,778 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 02:27:46,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:46,970 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 02:27:46,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:46,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865171853] [2021-10-16 02:27:46,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865171853] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:46,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:46,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:46,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967033713] [2021-10-16 02:27:46,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:46,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:47,001 INFO L87 Difference]: Start difference. First operand has 143 states, 141 states have (on average 1.7163120567375887) internal successors, (242), 142 states have internal predecessors, (242), 0 states have call successors, (0), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:47,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:47,249 INFO L93 Difference]: Finished difference Result 306 states and 518 transitions. [2021-10-16 02:27:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:47,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-16 02:27:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:47,270 INFO L225 Difference]: With dead ends: 306 [2021-10-16 02:27:47,270 INFO L226 Difference]: Without dead ends: 151 [2021-10-16 02:27:47,274 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-16 02:27:47,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2021-10-16 02:27:47,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.510204081632653) internal successors, (222), 147 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:47,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2021-10-16 02:27:47,323 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 45 [2021-10-16 02:27:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:47,324 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2021-10-16 02:27:47,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2021-10-16 02:27:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-16 02:27:47,327 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:47,327 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, 1] [2021-10-16 02:27:47,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:27:47,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:47,528 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:47,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:47,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1257377812, now seen corresponding path program 1 times [2021-10-16 02:27:47,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:47,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845182247] [2021-10-16 02:27:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:47,531 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:47,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:47,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:47,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:27:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:47,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:47,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:47,807 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 02:27:47,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:48,033 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 02:27:48,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:48,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845182247] [2021-10-16 02:27:48,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845182247] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:48,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:48,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:48,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936874624] [2021-10-16 02:27:48,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:48,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:48,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:48,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:48,041 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 02:27:48,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:48,189 INFO L93 Difference]: Finished difference Result 313 states and 476 transitions. [2021-10-16 02:27:48,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:48,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 61 [2021-10-16 02:27:48,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:48,195 INFO L225 Difference]: With dead ends: 313 [2021-10-16 02:27:48,196 INFO L226 Difference]: Without dead ends: 173 [2021-10-16 02:27:48,200 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 02:27:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-16 02:27:48,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 169. [2021-10-16 02:27:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.4761904761904763) internal successors, (248), 168 states have internal predecessors, (248), 0 states have call successors, (0), 0 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 02:27:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 248 transitions. [2021-10-16 02:27:48,228 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 248 transitions. Word has length 61 [2021-10-16 02:27:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:48,229 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 248 transitions. [2021-10-16 02:27:48,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 02:27:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 248 transitions. [2021-10-16 02:27:48,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-16 02:27:48,239 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:48,239 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 02:27:48,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:48,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:48,451 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:48,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:48,452 INFO L82 PathProgramCache]: Analyzing trace with hash 490136674, now seen corresponding path program 1 times [2021-10-16 02:27:48,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:48,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410213251] [2021-10-16 02:27:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:48,453 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:48,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:48,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:48,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:27:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:48,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:48,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:48,838 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 02:27:48,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:49,054 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 02:27:49,054 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:49,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410213251] [2021-10-16 02:27:49,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410213251] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:49,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:49,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:49,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490231868] [2021-10-16 02:27:49,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:49,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:49,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:49,063 INFO L87 Difference]: Start difference. First operand 169 states and 248 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 02:27:49,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:49,250 INFO L93 Difference]: Finished difference Result 376 states and 567 transitions. [2021-10-16 02:27:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:49,251 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 02:27:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:49,253 INFO L225 Difference]: With dead ends: 376 [2021-10-16 02:27:49,254 INFO L226 Difference]: Without dead ends: 215 [2021-10-16 02:27:49,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 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 02:27:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-16 02:27:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2021-10-16 02:27:49,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.4047619047619047) internal successors, (295), 210 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 02:27:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2021-10-16 02:27:49,285 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 82 [2021-10-16 02:27:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:49,287 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2021-10-16 02:27:49,287 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 02:27:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2021-10-16 02:27:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-16 02:27:49,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:49,292 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 02:27:49,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:49,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:49,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:49,503 INFO L82 PathProgramCache]: Analyzing trace with hash -407256604, now seen corresponding path program 1 times [2021-10-16 02:27:49,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:49,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671756055] [2021-10-16 02:27:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:49,505 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:49,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:49,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:49,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:27:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:49,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:49,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:49,882 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 02:27:49,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:50,053 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 02:27:50,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:50,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671756055] [2021-10-16 02:27:50,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671756055] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:50,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:50,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:50,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652116792] [2021-10-16 02:27:50,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:50,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:50,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:50,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:50,057 INFO L87 Difference]: Start difference. First operand 211 states and 295 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 02:27:50,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:50,215 INFO L93 Difference]: Finished difference Result 441 states and 625 transitions. [2021-10-16 02:27:50,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:50,216 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 02:27:50,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:50,218 INFO L225 Difference]: With dead ends: 441 [2021-10-16 02:27:50,218 INFO L226 Difference]: Without dead ends: 238 [2021-10-16 02:27:50,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-10-16 02:27:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2021-10-16 02:27:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.386266094420601) internal successors, (323), 233 states have internal predecessors, (323), 0 states have call successors, (0), 0 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 02:27:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 323 transitions. [2021-10-16 02:27:50,229 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 323 transitions. Word has length 82 [2021-10-16 02:27:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:50,229 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 323 transitions. [2021-10-16 02:27:50,230 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 02:27:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 323 transitions. [2021-10-16 02:27:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-16 02:27:50,231 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:50,232 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 02:27:50,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:50,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:50,447 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:50,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:50,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1150892934, now seen corresponding path program 1 times [2021-10-16 02:27:50,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:50,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216573941] [2021-10-16 02:27:50,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:50,448 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:50,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:50,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:50,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:27:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:50,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:50,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:50,868 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 02:27:50,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:51,100 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 02:27:51,100 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:51,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216573941] [2021-10-16 02:27:51,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216573941] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:51,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:51,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:51,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977650921] [2021-10-16 02:27:51,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:51,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:51,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:51,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:51,108 INFO L87 Difference]: Start difference. First operand 234 states and 323 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 02:27:51,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:51,256 INFO L93 Difference]: Finished difference Result 498 states and 701 transitions. [2021-10-16 02:27:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:51,260 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 02:27:51,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:51,262 INFO L225 Difference]: With dead ends: 498 [2021-10-16 02:27:51,262 INFO L226 Difference]: Without dead ends: 272 [2021-10-16 02:27:51,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 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 02:27:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-16 02:27:51,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 259. [2021-10-16 02:27:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.3682170542635659) internal successors, (353), 258 states have internal predecessors, (353), 0 states have call successors, (0), 0 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 02:27:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 353 transitions. [2021-10-16 02:27:51,271 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 353 transitions. Word has length 103 [2021-10-16 02:27:51,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:51,272 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 353 transitions. [2021-10-16 02:27:51,272 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 02:27:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 353 transitions. [2021-10-16 02:27:51,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-16 02:27:51,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:51,274 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:27:51,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:51,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:51,481 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:51,481 INFO L82 PathProgramCache]: Analyzing trace with hash -804010043, now seen corresponding path program 1 times [2021-10-16 02:27:51,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:51,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098975184] [2021-10-16 02:27:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:51,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:51,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:51,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:27:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:51,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:51,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 02:27:52,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-16 02:27:52,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:52,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098975184] [2021-10-16 02:27:52,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098975184] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:52,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:52,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:52,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959239383] [2021-10-16 02:27:52,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:52,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:52,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:52,324 INFO L87 Difference]: Start difference. First operand 259 states and 353 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 02:27:52,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:52,361 INFO L93 Difference]: Finished difference Result 757 states and 1032 transitions. [2021-10-16 02:27:52,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:52,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 02:27:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:52,365 INFO L225 Difference]: With dead ends: 757 [2021-10-16 02:27:52,365 INFO L226 Difference]: Without dead ends: 506 [2021-10-16 02:27:52,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-10-16 02:27:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-10-16 02:27:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.3564356435643565) internal successors, (685), 505 states have internal predecessors, (685), 0 states have call successors, (0), 0 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 02:27:52,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 685 transitions. [2021-10-16 02:27:52,380 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 685 transitions. Word has length 122 [2021-10-16 02:27:52,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:52,381 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 685 transitions. [2021-10-16 02:27:52,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 02:27:52,381 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 685 transitions. [2021-10-16 02:27:52,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-16 02:27:52,383 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:52,383 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:27:52,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:52,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:52,595 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:52,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1245377799, now seen corresponding path program 1 times [2021-10-16 02:27:52,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:52,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905129152] [2021-10-16 02:27:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:52,597 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:52,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:52,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:52,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:27:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:52,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:52,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 02:27:53,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 02:27:53,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:53,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905129152] [2021-10-16 02:27:53,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905129152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:53,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:53,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:27:53,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016848463] [2021-10-16 02:27:53,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:27:53,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:53,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:27:53,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:53,443 INFO L87 Difference]: Start difference. First operand 506 states and 685 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 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 02:27:53,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:53,518 INFO L93 Difference]: Finished difference Result 1498 states and 2033 transitions. [2021-10-16 02:27:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:27:53,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 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 02:27:53,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:53,525 INFO L225 Difference]: With dead ends: 1498 [2021-10-16 02:27:53,526 INFO L226 Difference]: Without dead ends: 1000 [2021-10-16 02:27:53,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:53,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-10-16 02:27:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2021-10-16 02:27:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 999 states have (on average 1.3543543543543544) internal successors, (1353), 999 states have internal predecessors, (1353), 0 states have call successors, (0), 0 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 02:27:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1353 transitions. [2021-10-16 02:27:53,566 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1353 transitions. Word has length 122 [2021-10-16 02:27:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:53,566 INFO L470 AbstractCegarLoop]: Abstraction has 1000 states and 1353 transitions. [2021-10-16 02:27:53,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 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 02:27:53,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1353 transitions. [2021-10-16 02:27:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-10-16 02:27:53,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:53,575 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-16 02:27:53,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:53,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:53,776 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:53,776 INFO L82 PathProgramCache]: Analyzing trace with hash 479308973, now seen corresponding path program 1 times [2021-10-16 02:27:53,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:53,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062336790] [2021-10-16 02:27:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:53,777 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:53,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:53,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:53,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:27:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:54,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:54,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-10-16 02:27:54,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-10-16 02:27:54,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:54,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062336790] [2021-10-16 02:27:54,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062336790] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:54,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:54,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:54,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135986731] [2021-10-16 02:27:54,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:54,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:54,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:54,863 INFO L87 Difference]: Start difference. First operand 1000 states and 1353 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 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 02:27:54,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:54,900 INFO L93 Difference]: Finished difference Result 2016 states and 2724 transitions. [2021-10-16 02:27:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:54,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 164 [2021-10-16 02:27:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:54,907 INFO L225 Difference]: With dead ends: 2016 [2021-10-16 02:27:54,907 INFO L226 Difference]: Without dead ends: 1024 [2021-10-16 02:27:54,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 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 02:27:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2021-10-16 02:27:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1024. [2021-10-16 02:27:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1023 states have (on average 1.3509286412512218) internal successors, (1382), 1023 states have internal predecessors, (1382), 0 states have call successors, (0), 0 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 02:27:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1382 transitions. [2021-10-16 02:27:54,938 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1382 transitions. Word has length 164 [2021-10-16 02:27:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:54,939 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 1382 transitions. [2021-10-16 02:27:54,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 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 02:27:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1382 transitions. [2021-10-16 02:27:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-10-16 02:27:54,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:54,943 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-16 02:27:54,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-16 02:27:55,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:55,157 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:55,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:55,158 INFO L82 PathProgramCache]: Analyzing trace with hash -843869973, now seen corresponding path program 1 times [2021-10-16 02:27:55,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:55,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291907042] [2021-10-16 02:27:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:55,159 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:55,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:55,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:55,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:27:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:55,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:55,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-10-16 02:27:55,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-10-16 02:27:56,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:56,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291907042] [2021-10-16 02:27:56,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291907042] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:56,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:56,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:27:56,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346066242] [2021-10-16 02:27:56,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:27:56,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:56,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:27:56,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:27:56,306 INFO L87 Difference]: Start difference. First operand 1024 states and 1382 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 02:27:56,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:56,360 INFO L93 Difference]: Finished difference Result 2053 states and 2766 transitions. [2021-10-16 02:27:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:27:56,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 164 [2021-10-16 02:27:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:56,366 INFO L225 Difference]: With dead ends: 2053 [2021-10-16 02:27:56,367 INFO L226 Difference]: Without dead ends: 1037 [2021-10-16 02:27:56,368 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 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 02:27:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2021-10-16 02:27:56,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1037. [2021-10-16 02:27:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1036 states have (on average 1.3465250965250966) internal successors, (1395), 1036 states have internal predecessors, (1395), 0 states have call successors, (0), 0 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 02:27:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1395 transitions. [2021-10-16 02:27:56,403 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1395 transitions. Word has length 164 [2021-10-16 02:27:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:56,404 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 1395 transitions. [2021-10-16 02:27:56,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 02:27:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1395 transitions. [2021-10-16 02:27:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-10-16 02:27:56,409 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:56,409 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-16 02:27:56,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:56,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:56,622 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:56,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:56,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1180278813, now seen corresponding path program 1 times [2021-10-16 02:27:56,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:56,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756229413] [2021-10-16 02:27:56,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:56,624 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:56,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:56,625 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:56,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:27:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:57,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:57,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-10-16 02:27:57,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:27:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-10-16 02:27:57,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:27:57,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756229413] [2021-10-16 02:27:57,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756229413] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:27:57,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:27:57,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:27:57,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497316224] [2021-10-16 02:27:57,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:27:57,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:27:57,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:27:57,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:57,969 INFO L87 Difference]: Start difference. First operand 1037 states and 1395 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 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 02:27:58,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:58,269 INFO L93 Difference]: Finished difference Result 2363 states and 3332 transitions. [2021-10-16 02:27:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:27:58,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 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 202 [2021-10-16 02:27:58,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:58,280 INFO L225 Difference]: With dead ends: 2363 [2021-10-16 02:27:58,280 INFO L226 Difference]: Without dead ends: 1347 [2021-10-16 02:27:58,282 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:27:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2021-10-16 02:27:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1315. [2021-10-16 02:27:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1314 states have (on average 1.3850837138508372) internal successors, (1820), 1314 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 02:27:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1820 transitions. [2021-10-16 02:27:58,323 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1820 transitions. Word has length 202 [2021-10-16 02:27:58,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:58,323 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1820 transitions. [2021-10-16 02:27:58,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 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 02:27:58,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1820 transitions. [2021-10-16 02:27:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-16 02:27:58,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:27:58,330 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-10-16 02:27:58,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:58,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:27:58,542 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:27:58,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:27:58,543 INFO L82 PathProgramCache]: Analyzing trace with hash -681286109, now seen corresponding path program 1 times [2021-10-16 02:27:58,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:27:58,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490830784] [2021-10-16 02:27:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:27:58,544 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:27:58,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:27:58,545 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:27:58,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:27:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:27:59,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:27:59,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:27:59,664 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-10-16 02:27:59,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-10-16 02:28:00,147 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:00,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490830784] [2021-10-16 02:28:00,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490830784] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:00,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:00,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:00,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555654764] [2021-10-16 02:28:00,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:00,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:00,150 INFO L87 Difference]: Start difference. First operand 1315 states and 1820 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 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 02:28:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:00,329 INFO L93 Difference]: Finished difference Result 2733 states and 3847 transitions. [2021-10-16 02:28:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 246 [2021-10-16 02:28:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:00,338 INFO L225 Difference]: With dead ends: 2733 [2021-10-16 02:28:00,338 INFO L226 Difference]: Without dead ends: 1439 [2021-10-16 02:28:00,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 489 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 02:28:00,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2021-10-16 02:28:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2021-10-16 02:28:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1438 states have (on average 1.3657858136300418) internal successors, (1964), 1438 states have internal predecessors, (1964), 0 states have call successors, (0), 0 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 02:28:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1964 transitions. [2021-10-16 02:28:00,382 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1964 transitions. Word has length 246 [2021-10-16 02:28:00,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:00,383 INFO L470 AbstractCegarLoop]: Abstraction has 1439 states and 1964 transitions. [2021-10-16 02:28:00,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 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 02:28:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1964 transitions. [2021-10-16 02:28:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-10-16 02:28:00,390 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:00,390 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:00,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:00,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:00,603 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:00,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash -11691205, now seen corresponding path program 1 times [2021-10-16 02:28:00,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:00,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584212353] [2021-10-16 02:28:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:00,605 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:00,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:00,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:00,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:28:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:01,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:01,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 521 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2021-10-16 02:28:01,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 521 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2021-10-16 02:28:02,516 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:02,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584212353] [2021-10-16 02:28:02,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584212353] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:02,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:02,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:28:02,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351549252] [2021-10-16 02:28:02,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:28:02,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:02,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:28:02,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:28:02,523 INFO L87 Difference]: Start difference. First operand 1439 states and 1964 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 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 02:28:02,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:02,836 INFO L93 Difference]: Finished difference Result 3215 states and 4563 transitions. [2021-10-16 02:28:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:28:02,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 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 303 [2021-10-16 02:28:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:02,848 INFO L225 Difference]: With dead ends: 3215 [2021-10-16 02:28:02,848 INFO L226 Difference]: Without dead ends: 1618 [2021-10-16 02:28:02,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:28:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2021-10-16 02:28:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1600. [2021-10-16 02:28:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1599 states have (on average 1.41213258286429) internal successors, (2258), 1599 states have internal predecessors, (2258), 0 states have call successors, (0), 0 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 02:28:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2258 transitions. [2021-10-16 02:28:02,914 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2258 transitions. Word has length 303 [2021-10-16 02:28:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:02,914 INFO L470 AbstractCegarLoop]: Abstraction has 1600 states and 2258 transitions. [2021-10-16 02:28:02,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 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 02:28:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2258 transitions. [2021-10-16 02:28:02,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-10-16 02:28:02,925 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:02,925 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 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] [2021-10-16 02:28:02,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:03,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:03,141 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:03,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:03,142 INFO L82 PathProgramCache]: Analyzing trace with hash -6370378, now seen corresponding path program 1 times [2021-10-16 02:28:03,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:03,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559529411] [2021-10-16 02:28:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:03,143 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:03,144 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:03,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 02:28:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:03,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:03,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 727 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-10-16 02:28:04,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 727 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-10-16 02:28:05,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:05,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559529411] [2021-10-16 02:28:05,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559529411] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:05,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:05,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:05,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419590954] [2021-10-16 02:28:05,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:05,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:05,531 INFO L87 Difference]: Start difference. First operand 1600 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 02:28:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:05,603 INFO L93 Difference]: Finished difference Result 4615 states and 6556 transitions. [2021-10-16 02:28:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 343 [2021-10-16 02:28:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:05,617 INFO L225 Difference]: With dead ends: 4615 [2021-10-16 02:28:05,617 INFO L226 Difference]: Without dead ends: 2300 [2021-10-16 02:28:05,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 683 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 02:28:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2021-10-16 02:28:05,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2222. [2021-10-16 02:28:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2221 states have (on average 1.40027014858172) internal successors, (3110), 2221 states have internal predecessors, (3110), 0 states have call successors, (0), 0 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 02:28:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3110 transitions. [2021-10-16 02:28:05,694 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3110 transitions. Word has length 343 [2021-10-16 02:28:05,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:05,695 INFO L470 AbstractCegarLoop]: Abstraction has 2222 states and 3110 transitions. [2021-10-16 02:28:05,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 02:28:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3110 transitions. [2021-10-16 02:28:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-10-16 02:28:05,706 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:05,706 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, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 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] [2021-10-16 02:28:05,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:05,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:05,928 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:05,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2132745897, now seen corresponding path program 1 times [2021-10-16 02:28:05,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:05,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543656945] [2021-10-16 02:28:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:05,930 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:05,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:05,931 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:05,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-16 02:28:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:06,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:06,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2021-10-16 02:28:07,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2021-10-16 02:28:08,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:08,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543656945] [2021-10-16 02:28:08,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543656945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:08,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:08,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:08,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106976093] [2021-10-16 02:28:08,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:08,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:08,434 INFO L87 Difference]: Start difference. First operand 2222 states and 3110 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 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 02:28:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:08,624 INFO L93 Difference]: Finished difference Result 4633 states and 6567 transitions. [2021-10-16 02:28:08,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 390 [2021-10-16 02:28:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:08,638 INFO L225 Difference]: With dead ends: 4633 [2021-10-16 02:28:08,638 INFO L226 Difference]: Without dead ends: 2432 [2021-10-16 02:28:08,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 777 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 02:28:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2021-10-16 02:28:08,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2384. [2021-10-16 02:28:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2383 states have (on average 1.3856483424255142) internal successors, (3302), 2383 states have internal predecessors, (3302), 0 states have call successors, (0), 0 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 02:28:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3302 transitions. [2021-10-16 02:28:08,720 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3302 transitions. Word has length 390 [2021-10-16 02:28:08,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:08,720 INFO L470 AbstractCegarLoop]: Abstraction has 2384 states and 3302 transitions. [2021-10-16 02:28:08,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 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 02:28:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3302 transitions. [2021-10-16 02:28:08,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-10-16 02:28:08,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:08,728 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 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] [2021-10-16 02:28:08,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:08,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:08,942 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:08,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:08,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1177338231, now seen corresponding path program 1 times [2021-10-16 02:28:08,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:08,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537224204] [2021-10-16 02:28:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:08,943 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:08,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:08,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:08,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 02:28:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:10,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:10,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 864 proven. 0 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2021-10-16 02:28:10,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 864 proven. 0 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2021-10-16 02:28:11,633 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:11,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537224204] [2021-10-16 02:28:11,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537224204] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:11,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:11,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:11,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020591987] [2021-10-16 02:28:11,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:11,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:11,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:11,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:11,636 INFO L87 Difference]: Start difference. First operand 2384 states and 3302 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 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 02:28:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:11,850 INFO L93 Difference]: Finished difference Result 4933 states and 6909 transitions. [2021-10-16 02:28:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:11,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 413 [2021-10-16 02:28:11,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:11,865 INFO L225 Difference]: With dead ends: 4933 [2021-10-16 02:28:11,865 INFO L226 Difference]: Without dead ends: 2570 [2021-10-16 02:28:11,871 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 823 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 02:28:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2021-10-16 02:28:11,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2558. [2021-10-16 02:28:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2557 states have (on average 1.3711380524051624) internal successors, (3506), 2557 states have internal predecessors, (3506), 0 states have call successors, (0), 0 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 02:28:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3506 transitions. [2021-10-16 02:28:11,946 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3506 transitions. Word has length 413 [2021-10-16 02:28:11,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:11,947 INFO L470 AbstractCegarLoop]: Abstraction has 2558 states and 3506 transitions. [2021-10-16 02:28:11,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 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 02:28:11,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3506 transitions. [2021-10-16 02:28:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-10-16 02:28:11,955 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:11,955 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:11,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:12,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:12,171 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:12,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:12,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1840493232, now seen corresponding path program 1 times [2021-10-16 02:28:12,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:12,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320920339] [2021-10-16 02:28:12,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:12,172 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:12,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:12,173 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:12,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 02:28:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:13,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:28:13,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2021-10-16 02:28:14,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2021-10-16 02:28:15,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:15,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320920339] [2021-10-16 02:28:15,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320920339] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:15,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:15,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-10-16 02:28:15,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449567093] [2021-10-16 02:28:15,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:28:15,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:15,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:28:15,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:28:15,457 INFO L87 Difference]: Start difference. First operand 2558 states and 3506 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 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 02:28:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:15,728 INFO L93 Difference]: Finished difference Result 12709 states and 17419 transitions. [2021-10-16 02:28:15,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:28:15,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 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 447 [2021-10-16 02:28:15,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:15,797 INFO L225 Difference]: With dead ends: 12709 [2021-10-16 02:28:15,797 INFO L226 Difference]: Without dead ends: 10172 [2021-10-16 02:28:15,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:28:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10172 states. [2021-10-16 02:28:16,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10172 to 5087. [2021-10-16 02:28:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5087 states, 5086 states have (on average 1.3700353912701533) internal successors, (6968), 5086 states have internal predecessors, (6968), 0 states have call successors, (0), 0 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 02:28:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5087 states to 5087 states and 6968 transitions. [2021-10-16 02:28:16,059 INFO L78 Accepts]: Start accepts. Automaton has 5087 states and 6968 transitions. Word has length 447 [2021-10-16 02:28:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 5087 states and 6968 transitions. [2021-10-16 02:28:16,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 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 02:28:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5087 states and 6968 transitions. [2021-10-16 02:28:16,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-10-16 02:28:16,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:16,072 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:16,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:16,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:16,288 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:16,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:16,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1887476094, now seen corresponding path program 1 times [2021-10-16 02:28:16,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:16,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595759535] [2021-10-16 02:28:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:16,290 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:16,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:16,292 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:16,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-16 02:28:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:17,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:28:17,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:18,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:19,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:19,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595759535] [2021-10-16 02:28:19,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595759535] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:28:19,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2058769292] [2021-10-16 02:28:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:19,589 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:28:19,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:28:19,598 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:28:19,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-16 02:28:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:21,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:21,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1092 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-10-16 02:28:22,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1092 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2021-10-16 02:28:23,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2058769292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:23,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:28:23,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 5 [2021-10-16 02:28:23,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039566803] [2021-10-16 02:28:23,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:23,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:28:23,580 INFO L87 Difference]: Start difference. First operand 5087 states and 6968 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:23,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:23,668 INFO L93 Difference]: Finished difference Result 5115 states and 7000 transitions. [2021-10-16 02:28:23,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:23,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 448 [2021-10-16 02:28:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:23,677 INFO L225 Difference]: With dead ends: 5115 [2021-10-16 02:28:23,677 INFO L226 Difference]: Without dead ends: 3559 [2021-10-16 02:28:23,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1788 GetRequests, 1785 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:28:23,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2021-10-16 02:28:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 3533. [2021-10-16 02:28:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3532 states have (on average 1.3850509626274066) internal successors, (4892), 3532 states have internal predecessors, (4892), 0 states have call successors, (0), 0 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 02:28:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4892 transitions. [2021-10-16 02:28:23,798 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4892 transitions. Word has length 448 [2021-10-16 02:28:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:23,799 INFO L470 AbstractCegarLoop]: Abstraction has 3533 states and 4892 transitions. [2021-10-16 02:28:23,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4892 transitions. [2021-10-16 02:28:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-10-16 02:28:23,810 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:23,810 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:23,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:24,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:24,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:28:24,225 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:24,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:24,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1810575296, now seen corresponding path program 1 times [2021-10-16 02:28:24,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:24,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409337412] [2021-10-16 02:28:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:24,226 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:24,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:24,227 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:24,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-16 02:28:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:26,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:28:26,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:26,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:27,647 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:27,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409337412] [2021-10-16 02:28:27,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409337412] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:28:27,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [860984506] [2021-10-16 02:28:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:27,648 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:28:27,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:28:27,649 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:28:27,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-16 02:28:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:30,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:28:30,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:31,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:31,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:32,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [860984506] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:28:32,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458393519] [2021-10-16 02:28:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:32,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:28:32,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:28:32,063 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:28:32,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-16 02:28:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:34,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:28:34,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:35,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1158 proven. 26 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-10-16 02:28:36,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458393519] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:28:36,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:28:36,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 4 [2021-10-16 02:28:36,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249867846] [2021-10-16 02:28:36,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:28:36,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:36,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:28:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:28:36,502 INFO L87 Difference]: Start difference. First operand 3533 states and 4892 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:36,811 INFO L93 Difference]: Finished difference Result 10533 states and 14538 transitions. [2021-10-16 02:28:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:28:36,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 448 [2021-10-16 02:28:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:36,826 INFO L225 Difference]: With dead ends: 10533 [2021-10-16 02:28:36,826 INFO L226 Difference]: Without dead ends: 7021 [2021-10-16 02:28:36,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2684 GetRequests, 2681 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:28:36,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7021 states. [2021-10-16 02:28:36,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7021 to 4805. [2021-10-16 02:28:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 4804 states have (on average 1.414654454621149) internal successors, (6796), 4804 states have internal predecessors, (6796), 0 states have call successors, (0), 0 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 02:28:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 6796 transitions. [2021-10-16 02:28:36,990 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 6796 transitions. Word has length 448 [2021-10-16 02:28:36,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:36,991 INFO L470 AbstractCegarLoop]: Abstraction has 4805 states and 6796 transitions. [2021-10-16 02:28:36,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 6796 transitions. [2021-10-16 02:28:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2021-10-16 02:28:37,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:37,003 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:37,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:37,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-16 02:28:37,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:37,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:28:37,621 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:37,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1377360886, now seen corresponding path program 1 times [2021-10-16 02:28:37,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:37,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349497232] [2021-10-16 02:28:37,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:37,622 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:37,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:37,623 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:37,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-16 02:28:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:40,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:40,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1229 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2021-10-16 02:28:40,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1229 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2021-10-16 02:28:41,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:41,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349497232] [2021-10-16 02:28:41,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349497232] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:41,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:41,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:41,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673509529] [2021-10-16 02:28:41,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:41,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:41,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:41,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:41,755 INFO L87 Difference]: Start difference. First operand 4805 states and 6796 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 02:28:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:41,925 INFO L93 Difference]: Finished difference Result 9935 states and 14157 transitions. [2021-10-16 02:28:41,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:41,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 478 [2021-10-16 02:28:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:41,935 INFO L225 Difference]: With dead ends: 9935 [2021-10-16 02:28:41,935 INFO L226 Difference]: Without dead ends: 5151 [2021-10-16 02:28:41,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 953 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 02:28:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2021-10-16 02:28:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 4965. [2021-10-16 02:28:42,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4965 states, 4964 states have (on average 1.4093473005640613) internal successors, (6996), 4964 states have internal predecessors, (6996), 0 states have call successors, (0), 0 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 02:28:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 6996 transitions. [2021-10-16 02:28:42,137 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 6996 transitions. Word has length 478 [2021-10-16 02:28:42,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:42,138 INFO L470 AbstractCegarLoop]: Abstraction has 4965 states and 6996 transitions. [2021-10-16 02:28:42,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 02:28:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 6996 transitions. [2021-10-16 02:28:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-10-16 02:28:42,149 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:42,150 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:42,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:42,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:42,370 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:42,370 INFO L82 PathProgramCache]: Analyzing trace with hash 512749114, now seen corresponding path program 1 times [2021-10-16 02:28:42,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:42,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238343004] [2021-10-16 02:28:42,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:42,371 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:42,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:42,372 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:42,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-16 02:28:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:44,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:44,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1321 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-10-16 02:28:45,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1321 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-10-16 02:28:46,552 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:46,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238343004] [2021-10-16 02:28:46,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238343004] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:46,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:46,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:46,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098867007] [2021-10-16 02:28:46,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:46,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:46,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:46,553 INFO L87 Difference]: Start difference. First operand 4965 states and 6996 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 02:28:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:46,783 INFO L93 Difference]: Finished difference Result 10485 states and 15007 transitions. [2021-10-16 02:28:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 479 [2021-10-16 02:28:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:46,796 INFO L225 Difference]: With dead ends: 10485 [2021-10-16 02:28:46,796 INFO L226 Difference]: Without dead ends: 5541 [2021-10-16 02:28:46,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 955 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 02:28:46,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5541 states. [2021-10-16 02:28:46,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5541 to 5509. [2021-10-16 02:28:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5509 states, 5508 states have (on average 1.383442265795207) internal successors, (7620), 5508 states have internal predecessors, (7620), 0 states have call successors, (0), 0 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 02:28:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 7620 transitions. [2021-10-16 02:28:46,950 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 7620 transitions. Word has length 479 [2021-10-16 02:28:46,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:46,951 INFO L470 AbstractCegarLoop]: Abstraction has 5509 states and 7620 transitions. [2021-10-16 02:28:46,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 02:28:46,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 7620 transitions. [2021-10-16 02:28:46,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-10-16 02:28:46,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:46,963 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 8, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:46,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:47,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:47,177 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:47,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1812297568, now seen corresponding path program 1 times [2021-10-16 02:28:47,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:47,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705306489] [2021-10-16 02:28:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:47,178 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:47,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:47,179 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:47,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-16 02:28:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:50,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:50,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2715 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-10-16 02:28:50,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2715 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-10-16 02:28:51,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:51,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705306489] [2021-10-16 02:28:51,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705306489] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:51,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:51,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:51,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044524764] [2021-10-16 02:28:51,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:51,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:51,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:51,831 INFO L87 Difference]: Start difference. First operand 5509 states and 7620 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:52,075 INFO L93 Difference]: Finished difference Result 11605 states and 16319 transitions. [2021-10-16 02:28:52,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:52,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 510 [2021-10-16 02:28:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:52,086 INFO L225 Difference]: With dead ends: 11605 [2021-10-16 02:28:52,086 INFO L226 Difference]: Without dead ends: 6117 [2021-10-16 02:28:52,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 1017 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 02:28:52,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6117 states. [2021-10-16 02:28:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6117 to 6085. [2021-10-16 02:28:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 1.3602892833662064) internal successors, (8276), 6084 states have internal predecessors, (8276), 0 states have call successors, (0), 0 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 02:28:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 8276 transitions. [2021-10-16 02:28:52,302 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 8276 transitions. Word has length 510 [2021-10-16 02:28:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:52,302 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 8276 transitions. [2021-10-16 02:28:52,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 8276 transitions. [2021-10-16 02:28:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-10-16 02:28:52,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:52,314 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, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:28:52,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:52,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:52,533 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:52,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:52,533 INFO L82 PathProgramCache]: Analyzing trace with hash -624796129, now seen corresponding path program 1 times [2021-10-16 02:28:52,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:52,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110266326] [2021-10-16 02:28:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:52,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:52,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:52,535 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:52,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-16 02:28:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:28:55,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:28:55,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:28:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1805 proven. 0 refuted. 0 times theorem prover too weak. 1317 trivial. 0 not checked. [2021-10-16 02:28:56,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:28:57,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1805 proven. 0 refuted. 0 times theorem prover too weak. 1317 trivial. 0 not checked. [2021-10-16 02:28:57,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:28:57,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110266326] [2021-10-16 02:28:57,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110266326] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:28:57,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:28:57,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 02:28:57,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580031885] [2021-10-16 02:28:57,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:28:57,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:28:57,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:28:57,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:28:57,417 INFO L87 Difference]: Start difference. First operand 6085 states and 8276 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:28:57,620 INFO L93 Difference]: Finished difference Result 11249 states and 15093 transitions. [2021-10-16 02:28:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:28:57,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 543 [2021-10-16 02:28:57,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:28:57,628 INFO L225 Difference]: With dead ends: 11249 [2021-10-16 02:28:57,628 INFO L226 Difference]: Without dead ends: 5185 [2021-10-16 02:28:57,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1084 GetRequests, 1083 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 02:28:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5185 states. [2021-10-16 02:28:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5185 to 4475. [2021-10-16 02:28:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4475 states, 4474 states have (on average 1.2619579794367457) internal successors, (5646), 4474 states have internal predecessors, (5646), 0 states have call successors, (0), 0 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 02:28:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 5646 transitions. [2021-10-16 02:28:57,754 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 5646 transitions. Word has length 543 [2021-10-16 02:28:57,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:28:57,755 INFO L470 AbstractCegarLoop]: Abstraction has 4475 states and 5646 transitions. [2021-10-16 02:28:57,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:28:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 5646 transitions. [2021-10-16 02:28:57,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2021-10-16 02:28:57,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:28:57,765 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, 5, 5, 3, 3, 3, 3, 3, 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] [2021-10-16 02:28:57,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-16 02:28:57,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:28:57,986 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:28:57,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:28:57,986 INFO L82 PathProgramCache]: Analyzing trace with hash 533851243, now seen corresponding path program 1 times [2021-10-16 02:28:57,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:28:57,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702614148] [2021-10-16 02:28:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:28:57,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:28:57,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:28:57,989 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:28:58,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-16 02:29:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:29:01,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:29:01,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:29:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 2006 proven. 26 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2021-10-16 02:29:02,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:29:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 2006 proven. 26 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2021-10-16 02:29:03,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:29:03,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702614148] [2021-10-16 02:29:03,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702614148] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:29:03,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [684478162] [2021-10-16 02:29:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:29:03,253 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:29:03,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:29:03,253 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:29:03,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-10-16 02:29:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:29:07,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:29:07,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:29:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 2006 proven. 26 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2021-10-16 02:29:09,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:29:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 2006 proven. 26 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2021-10-16 02:29:09,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [684478162] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:29:09,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684836461] [2021-10-16 02:29:09,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:29:09,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:29:09,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:29:09,970 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:29:09,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-16 02:29:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:29:14,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:29:14,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:29:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 2006 proven. 26 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2021-10-16 02:29:15,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:29:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 2006 proven. 26 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2021-10-16 02:29:16,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684836461] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:29:16,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:29:16,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 02:29:16,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543157410] [2021-10-16 02:29:16,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:29:16,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:29:16,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:29:16,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:29:16,368 INFO L87 Difference]: Start difference. First operand 4475 states and 5646 transitions. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 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 02:29:16,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:29:16,739 INFO L93 Difference]: Finished difference Result 5815 states and 7298 transitions. [2021-10-16 02:29:16,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:29:16,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 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) Word has length 581 [2021-10-16 02:29:16,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:29:16,740 INFO L225 Difference]: With dead ends: 5815 [2021-10-16 02:29:16,740 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:29:16,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3486 GetRequests, 3479 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.9ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:29:16,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:29:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:29:16,744 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 02:29:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:29:16,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 581 [2021-10-16 02:29:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:29:16,744 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:29:16,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 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 02:29:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:29:16,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:29:16,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:29:16,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-16 02:29:16,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-16 02:29:17,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-10-16 02:29:17,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:29:17,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:29:17,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:17,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:18,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:29:21,133 INFO L857 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2021-10-16 02:29:21,133 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 611) no Hoare annotation was computed. [2021-10-16 02:29:21,133 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 405) no Hoare annotation was computed. [2021-10-16 02:29:21,133 INFO L853 garLoopResultBuilder]: At program point L201(lines 197 567) the Hoare annotation is: (or (and (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32))) (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))))) [2021-10-16 02:29:21,134 INFO L853 garLoopResultBuilder]: At program point L168(lines 164 578) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,135 INFO L853 garLoopResultBuilder]: At program point L135(lines 134 588) the Hoare annotation is: (and (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0))) [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L598(lines 598 603) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L598-2(lines 597 611) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L203(lines 203 565) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 576) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 587) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L600(lines 600 602) no Hoare annotation was computed. [2021-10-16 02:29:21,136 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-10-16 02:29:21,137 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 244) no Hoare annotation was computed. [2021-10-16 02:29:21,137 INFO L857 garLoopResultBuilder]: For program point L237-2(lines 237 244) no Hoare annotation was computed. [2021-10-16 02:29:21,137 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2021-10-16 02:29:21,137 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 506) no Hoare annotation was computed. [2021-10-16 02:29:21,137 INFO L857 garLoopResultBuilder]: For program point L536-2(lines 536 540) no Hoare annotation was computed. [2021-10-16 02:29:21,137 INFO L857 garLoopResultBuilder]: For program point L437(lines 437 445) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L857 garLoopResultBuilder]: For program point L437-2(lines 437 445) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L857 garLoopResultBuilder]: For program point L206(lines 206 564) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 575) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 586) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 378) no Hoare annotation was computed. [2021-10-16 02:29:21,138 INFO L853 garLoopResultBuilder]: At program point L207(lines 203 565) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32))) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2021-10-16 02:29:21,139 INFO L853 garLoopResultBuilder]: At program point L174(lines 170 576) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L605(lines 605 609) no Hoare annotation was computed. [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 443) no Hoare annotation was computed. [2021-10-16 02:29:21,139 INFO L853 garLoopResultBuilder]: At program point L407(lines 398 416) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 563) no Hoare annotation was computed. [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 574) no Hoare annotation was computed. [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 585) no Hoare annotation was computed. [2021-10-16 02:29:21,139 INFO L853 garLoopResultBuilder]: At program point L110-2(lines 110 614) the Hoare annotation is: (let ((.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32)))) (.cse0 (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse4 (= (_ bv8496 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse6 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse7 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (or (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__state~0) (and .cse0 (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2) (and .cse3 .cse2) (and .cse1 (= (_ bv8560 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and .cse4 .cse1 .cse5 .cse2) (and .cse0 .cse1 (= (_ bv8592 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and .cse1 (= (_ bv8544 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and .cse0 .cse1 (= (_ bv8608 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse6 .cse1 .cse5) (and .cse0 (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2) (and .cse6 .cse3) (and .cse1 (= (_ bv8466 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse5 .cse2) (and (= (_ bv8656 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse5 .cse2) (and .cse0 .cse1 .cse7 .cse2) (and .cse4 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32))) (and (= (_ bv8464 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv0 32))) (and (= (_ bv8528 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse6 .cse1 .cse7))) [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 377) no Hoare annotation was computed. [2021-10-16 02:29:21,139 INFO L857 garLoopResultBuilder]: For program point L342-1(lines 342 377) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L853 garLoopResultBuilder]: At program point L177(lines 176 574) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse4 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse0 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse1 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 .cse2) (and (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse3 .cse1 .cse4) (and .cse1 .cse2 .cse4) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0 .cse3 .cse1))) [2021-10-16 02:29:21,140 INFO L853 garLoopResultBuilder]: At program point L144(lines 137 587) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32))) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv0 32)) .cse2))) [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 510) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 219 558) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 374) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L410(lines 410 412) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 562) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 573) no Hoare annotation was computed. [2021-10-16 02:29:21,140 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 584) no Hoare annotation was computed. [2021-10-16 02:29:21,141 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 595) no Hoare annotation was computed. [2021-10-16 02:29:21,141 INFO L860 garLoopResultBuilder]: At program point L642(lines 633 644) the Hoare annotation is: true [2021-10-16 02:29:21,141 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 479) no Hoare annotation was computed. [2021-10-16 02:29:21,141 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 249) no Hoare annotation was computed. [2021-10-16 02:29:21,141 INFO L853 garLoopResultBuilder]: At program point L213(lines 209 563) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse2 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~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 .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32))) .cse1))) [2021-10-16 02:29:21,141 INFO L853 garLoopResultBuilder]: At program point L114(lines 113 595) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2))) [2021-10-16 02:29:21,142 INFO L857 garLoopResultBuilder]: For program point L313(lines 313 320) no Hoare annotation was computed. [2021-10-16 02:29:21,142 INFO L857 garLoopResultBuilder]: For program point L313-2(lines 313 320) no Hoare annotation was computed. [2021-10-16 02:29:21,142 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 561) no Hoare annotation was computed. [2021-10-16 02:29:21,143 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 572) no Hoare annotation was computed. [2021-10-16 02:29:21,144 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 583) no Hoare annotation was computed. [2021-10-16 02:29:21,144 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 594) no Hoare annotation was computed. [2021-10-16 02:29:21,144 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 552) no Hoare annotation was computed. [2021-10-16 02:29:21,144 INFO L857 garLoopResultBuilder]: For program point L546-1(lines 546 552) no Hoare annotation was computed. [2021-10-16 02:29:21,145 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 372) no Hoare annotation was computed. [2021-10-16 02:29:21,145 INFO L860 garLoopResultBuilder]: At program point L216(lines 215 561) the Hoare annotation is: true [2021-10-16 02:29:21,145 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 573) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,145 INFO L853 garLoopResultBuilder]: At program point L150(lines 146 584) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32))) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32)) .cse2))) [2021-10-16 02:29:21,145 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 285) no Hoare annotation was computed. [2021-10-16 02:29:21,146 INFO L857 garLoopResultBuilder]: For program point L283-2(lines 219 558) no Hoare annotation was computed. [2021-10-16 02:29:21,146 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:29:21,147 INFO L857 garLoopResultBuilder]: For program point L317(lines 317 319) no Hoare annotation was computed. [2021-10-16 02:29:21,147 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 262) no Hoare annotation was computed. [2021-10-16 02:29:21,147 INFO L860 garLoopResultBuilder]: At program point L218(lines 217 561) the Hoare annotation is: true [2021-10-16 02:29:21,147 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 571) no Hoare annotation was computed. [2021-10-16 02:29:21,147 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 582) no Hoare annotation was computed. [2021-10-16 02:29:21,147 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 593) no Hoare annotation was computed. [2021-10-16 02:29:21,148 INFO L860 garLoopResultBuilder]: At program point L615(lines 109 616) the Hoare annotation is: true [2021-10-16 02:29:21,148 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 551) no Hoare annotation was computed. [2021-10-16 02:29:21,148 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 520) no Hoare annotation was computed. [2021-10-16 02:29:21,148 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 453) no Hoare annotation was computed. [2021-10-16 02:29:21,148 INFO L857 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2021-10-16 02:29:21,148 INFO L857 garLoopResultBuilder]: For program point L352-2(lines 352 356) no Hoare annotation was computed. [2021-10-16 02:29:21,148 INFO L857 garLoopResultBuilder]: For program point L253(lines 253 256) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L386(lines 386 418) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 570) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 581) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 592) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 488) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L486-2(lines 219 558) no Hoare annotation was computed. [2021-10-16 02:29:21,149 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 393) no Hoare annotation was computed. [2021-10-16 02:29:21,150 INFO L853 garLoopResultBuilder]: At program point L222(lines 116 594) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2))) [2021-10-16 02:29:21,150 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 571) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,150 INFO L853 garLoopResultBuilder]: At program point L156(lines 152 582) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))) .cse1) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1))) [2021-10-16 02:29:21,150 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 463) no Hoare annotation was computed. [2021-10-16 02:29:21,150 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point L620(lines 620 622) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point L620-2(lines 620 622) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 569) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 580) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 591) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-16 02:29:21,151 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:29:21,152 INFO L860 garLoopResultBuilder]: At program point L623(lines 23 627) the Hoare annotation is: true [2021-10-16 02:29:21,153 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 460) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 568) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 579) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 590) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 531) no Hoare annotation was computed. [2021-10-16 02:29:21,154 INFO L857 garLoopResultBuilder]: For program point L492(lines 492 496) no Hoare annotation was computed. [2021-10-16 02:29:21,155 INFO L857 garLoopResultBuilder]: For program point L492-2(lines 492 496) no Hoare annotation was computed. [2021-10-16 02:29:21,155 INFO L857 garLoopResultBuilder]: For program point L360(lines 360 368) no Hoare annotation was computed. [2021-10-16 02:29:21,155 INFO L853 garLoopResultBuilder]: At program point L195(lines 191 569) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,155 INFO L853 garLoopResultBuilder]: At program point L162(lines 158 580) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,155 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-10-16 02:29:21,156 INFO L857 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-10-16 02:29:21,156 INFO L853 garLoopResultBuilder]: At program point L559(lines 110 614) the Hoare annotation is: (let ((.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32)))) (.cse0 (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse4 (= (_ bv8496 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse6 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse7 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (or (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__state~0) (and .cse0 (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2) (and .cse3 .cse2) (and .cse1 (= (_ bv8560 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and .cse4 .cse1 .cse5 .cse2) (and .cse0 .cse1 (= (_ bv8592 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and .cse1 (= (_ bv8544 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and .cse0 .cse1 (= (_ bv8608 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2) (and (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse6 .cse1 .cse5) (and .cse0 (= (_ bv8576 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2) (and .cse6 .cse3) (and .cse1 (= (_ bv8466 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse5 .cse2) (and (= (_ bv8656 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse5 .cse2) (and .cse0 .cse1 .cse7 .cse2) (and .cse4 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32))) (and (= (_ bv8528 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse6 .cse1 .cse7))) [2021-10-16 02:29:21,156 INFO L853 garLoopResultBuilder]: At program point L361(lines 336 379) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,156 INFO L857 garLoopResultBuilder]: For program point L428(lines 428 430) no Hoare annotation was computed. [2021-10-16 02:29:21,156 INFO L853 garLoopResultBuilder]: At program point L395(lines 386 418) the Hoare annotation is: (let ((.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) .cse3 .cse2))) [2021-10-16 02:29:21,157 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 298) no Hoare annotation was computed. [2021-10-16 02:29:21,157 INFO L857 garLoopResultBuilder]: For program point L296-2(lines 219 558) no Hoare annotation was computed. [2021-10-16 02:29:21,157 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 567) no Hoare annotation was computed. [2021-10-16 02:29:21,157 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 578) no Hoare annotation was computed. [2021-10-16 02:29:21,157 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 589) no Hoare annotation was computed. [2021-10-16 02:29:21,158 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:29:21,158 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2021-10-16 02:29:21,159 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 530) no Hoare annotation was computed. [2021-10-16 02:29:21,159 INFO L853 garLoopResultBuilder]: At program point L528-1(lines 219 558) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse2 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~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 .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0) (not (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 (_ bv8640 32))) .cse1))) [2021-10-16 02:29:21,159 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 365) no Hoare annotation was computed. [2021-10-16 02:29:21,159 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 334) no Hoare annotation was computed. [2021-10-16 02:29:21,159 INFO L857 garLoopResultBuilder]: For program point L330-2(lines 219 558) no Hoare annotation was computed. [2021-10-16 02:29:21,160 INFO L853 garLoopResultBuilder]: At program point L132(lines 128 590) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)))) (.cse2 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2))) [2021-10-16 02:29:21,160 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-10-16 02:29:21,160 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 612) no Hoare annotation was computed. [2021-10-16 02:29:21,160 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 416) no Hoare annotation was computed. [2021-10-16 02:29:21,160 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 566) no Hoare annotation was computed. [2021-10-16 02:29:21,160 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 577) no Hoare annotation was computed. [2021-10-16 02:29:21,160 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 588) no Hoare annotation was computed. [2021-10-16 02:29:21,161 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-10-16 02:29:21,161 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 84 626) no Hoare annotation was computed. [2021-10-16 02:29:21,165 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:29:21,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:29:21 BoogieIcfgContainer [2021-10-16 02:29:21,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:29:21,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:29:21,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:29:21,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:29:21,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:27:46" (3/4) ... [2021-10-16 02:29:21,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:29:21,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:29:21,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:29:21,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:29:21,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:29:21,406 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:29:21,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:29:21,411 INFO L168 Benchmark]: Toolchain (without parser) took 96598.46 ms. Allocated memory was 65.0 MB in the beginning and 587.2 MB in the end (delta: 522.2 MB). Free memory was 43.9 MB in the beginning and 299.2 MB in the end (delta: -255.3 MB). Peak memory consumption was 264.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,411 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:21,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.91 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 44.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.84 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 42.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,413 INFO L168 Benchmark]: Boogie Preprocessor took 80.56 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 39.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,414 INFO L168 Benchmark]: RCFGBuilder took 793.16 ms. Allocated memory is still 65.0 MB. Free memory was 39.7 MB in the beginning and 30.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,414 INFO L168 Benchmark]: TraceAbstraction took 94980.69 ms. Allocated memory was 65.0 MB in the beginning and 587.2 MB in the end (delta: 522.2 MB). Free memory was 30.1 MB in the beginning and 309.6 MB in the end (delta: -279.5 MB). Peak memory consumption was 440.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,415 INFO L168 Benchmark]: Witness Printer took 168.97 ms. Allocated memory is still 587.2 MB. Free memory was 309.6 MB in the beginning and 299.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:21,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.91 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 44.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.84 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 42.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.56 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 39.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 793.16 ms. Allocated memory is still 65.0 MB. Free memory was 39.7 MB in the beginning and 30.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 94980.69 ms. Allocated memory was 65.0 MB in the beginning and 587.2 MB in the end (delta: 522.2 MB). Free memory was 30.1 MB in the beginning and 309.6 MB in the end (delta: -279.5 MB). Peak memory consumption was 440.8 MB. Max. memory is 16.1 GB. * Witness Printer took 168.97 ms. Allocated memory is still 587.2 MB. Free memory was 309.6 MB in the beginning and 299.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: 630]: 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, 143 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 94829.2ms, OverallIterations: 23, TraceHistogramMax: 18, EmptinessCheckTime: 167.8ms, AutomataDifference: 4645.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3784.7ms, InitialAbstractionConstructionTime: 14.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5102 SDtfs, 2951 SDslu, 4055 SDs, 0 SdLazy, 2486 SolverSat, 536 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2124.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18522 GetRequests, 18480 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 154.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6085occurred in iteration=21, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1800.3ms AutomataMinimizationTime, 23 MinimizatonAttempts, 8503 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 255 NumberOfFragments, 1319 HoareAnnotationTreeSize, 28 FomulaSimplifications, 13324 FormulaSimplificationTreeSizeReduction, 762.8ms HoareSimplificationTime, 28 FomulaSimplificationsInter, 3381 FormulaSimplificationTreeSizeReductionInter, 3008.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 480.0ms SsaConstructionTime, 2428.2ms SatisfiabilityAnalysisTime, 36196.4ms InterpolantComputationTime, 9282 NumberOfCodeBlocks, 9282 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 18508 ConstructedInterpolants, 0 QuantifiedInterpolants, 24150 SizeOfPredicates, 12 NumberOfNonLiveVariables, 10858 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 56 InterpolantComputations, 42 PerfectInterpolantSequences, 79950/80314 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: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: !(8672bv32 == s__state) && !(8640bv32 == s__state) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || ((((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((8576bv32 == s__s3__tmp__next_state___0 && !(8672bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || ((((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((!(8672bv32 == s__state) && blastFlag == 0bv32) && !(8640bv32 == s__state)) - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (((((((((((((((((3bv32 == s__state || (((8576bv32 == s__s3__tmp__next_state___0 && 8640bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag)) || (!(s__hit == 0bv32) && 2bv32 == blastFlag)) || ((s__s3__tmp__new_cipher__algorithms == __cil_tmp56 && 8560bv32 == s__state) && 2bv32 == blastFlag)) || (8512bv32 == s__state && 2bv32 == blastFlag)) || (((8496bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8592bv32 == s__state) && 2bv32 == blastFlag)) || ((s__s3__tmp__new_cipher__algorithms == __cil_tmp56 && 8544bv32 == s__state) && 2bv32 == blastFlag)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8608bv32 == s__state) && 2bv32 == blastFlag)) || (((8672bv32 == s__state && 3bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32))) || (((8576bv32 == s__s3__tmp__next_state___0 && 8576bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag)) || (3bv32 == blastFlag && !(s__hit == 0bv32))) || (((s__s3__tmp__new_cipher__algorithms == __cil_tmp56 && 8466bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag)) || (((8656bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 2bv32 == blastFlag)) || (8496bv32 == s__state && blastFlag == 1bv32)) || (8464bv32 == s__state && blastFlag == 0bv32)) || ((8528bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag)) || (((3bv32 == s__s3__tmp__next_state___0 && 3bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((((((((3bv32 == s__state || (((8576bv32 == s__s3__tmp__next_state___0 && 8640bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag)) || (!(s__hit == 0bv32) && 2bv32 == blastFlag)) || ((s__s3__tmp__new_cipher__algorithms == __cil_tmp56 && 8560bv32 == s__state) && 2bv32 == blastFlag)) || (8512bv32 == s__state && 2bv32 == blastFlag)) || (((8496bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8592bv32 == s__state) && 2bv32 == blastFlag)) || ((s__s3__tmp__new_cipher__algorithms == __cil_tmp56 && 8544bv32 == s__state) && 2bv32 == blastFlag)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8608bv32 == s__state) && 2bv32 == blastFlag)) || (((8672bv32 == s__state && 3bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32))) || (((8576bv32 == s__s3__tmp__next_state___0 && 8576bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag)) || (3bv32 == blastFlag && !(s__hit == 0bv32))) || (((s__s3__tmp__new_cipher__algorithms == __cil_tmp56 && 8466bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag)) || (((8656bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 2bv32 == blastFlag)) || (8496bv32 == s__state && blastFlag == 1bv32)) || ((8528bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag)) || (((3bv32 == s__s3__tmp__next_state___0 && 3bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 386]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (((!(s__hit == 0bv32) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || ((3bv32 == blastFlag && !(s__hit == 0bv32)) && !(8640bv32 == s__state))) || (((3bv32 == blastFlag && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && !(8640bv32 == s__state)) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && 8448bv32 == s__state) && !(s__hit == 0bv32)) || (((8576bv32 == s__s3__tmp__next_state___0 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 2bv32 == blastFlag)) || ((8448bv32 == s__state && !(s__hit == 0bv32)) && 2bv32 == blastFlag)) || (((3bv32 == s__s3__tmp__next_state___0 && 3bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((8576bv32 == s__s3__tmp__next_state___0 && !(8672bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (((!(s__hit == 0bv32) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || ((3bv32 == blastFlag && !(s__hit == 0bv32)) && !(8640bv32 == s__state))) || (((3bv32 == blastFlag && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && !(8640bv32 == s__state)) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || ((!(8672bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((8576bv32 == s__s3__tmp__next_state___0 && !(8672bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || ((((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((!(8672bv32 == s__state) && blastFlag == 1bv32) && !(8640bv32 == s__state)) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((8640bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && !(s__s3__tmp__next_state___0 == 8640bv32)) && 2bv32 == blastFlag) || (!(8672bv32 == s__state) && !(s__hit == 0bv32)) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((((3bv32 == blastFlag && !(8672bv32 == s__state)) && !(s__hit == 0bv32)) && !(8640bv32 == s__state)) || (((!(8672bv32 == s__state) && !(s__hit == 0bv32)) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || (((!(8672bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) RESULT: Ultimate proved your program to be correct! [2021-10-16 02:29:21,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8180c25c-96c4-468b-80a9-44f8db5e9eb3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...