./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF --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 b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:24:09,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:24:09,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:24:09,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:24:09,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:24:09,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:24:09,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:24:09,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:24:09,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:24:09,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:24:09,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:24:09,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:24:09,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:24:09,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:24:09,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:24:09,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:24:09,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:24:09,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:24:09,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:24:09,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:24:09,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:24:09,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:24:09,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:24:09,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:24:09,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:24:09,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:24:09,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:24:09,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:24:09,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:24:09,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:24:09,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:24:09,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:24:09,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:24:09,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:24:09,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:24:09,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:24:09,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:24:09,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:24:09,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:24:09,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:24:09,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:24:09,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:24:10,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:24:10,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:24:10,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:24:10,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:24:10,005 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:24:10,005 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:24:10,006 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:24:10,006 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:24:10,006 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:24:10,006 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:24:10,006 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:24:10,007 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:24:10,007 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:24:10,007 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:24:10,007 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:24:10,007 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:24:10,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:24:10,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:24:10,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:24:10,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:24:10,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:24:10,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:24:10,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:24:10,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:24:10,010 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:24:10,010 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:24:10,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:24:10,010 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:24:10,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:24:10,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:24:10,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:24:10,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:24:10,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:24:10,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:24:10,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:24:10,012 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:24:10,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:24:10,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:24:10,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:24:10,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:24:10,013 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_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 [2021-11-12 22:24:10,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:24:10,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:24:10,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:24:10,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:24:10,299 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:24:10,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2021-11-12 22:24:10,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/90cf9d52c/5520aaa57f6a403ca2f0a9e00190b341/FLAGeaeeb0b2b [2021-11-12 22:24:10,787 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:24:10,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2021-11-12 22:24:10,795 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/90cf9d52c/5520aaa57f6a403ca2f0a9e00190b341/FLAGeaeeb0b2b [2021-11-12 22:24:11,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/90cf9d52c/5520aaa57f6a403ca2f0a9e00190b341 [2021-11-12 22:24:11,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:24:11,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:24:11,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:24:11,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:24:11,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:24:11,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de529d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11, skipping insertion in model container [2021-11-12 22:24:11,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:24:11,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:24:11,380 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_b81dd814-e97a-4058-8042-6a4df950dcb2/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2021-11-12 22:24:11,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:24:11,403 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:24:11,415 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_b81dd814-e97a-4058-8042-6a4df950dcb2/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2021-11-12 22:24:11,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:24:11,435 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:24:11,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11 WrapperNode [2021-11-12 22:24:11,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:24:11,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:24:11,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:24:11,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:24:11,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:24:11,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:24:11,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:24:11,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:24:11,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:24:11,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:24:11,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:24:11,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:24:11,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (1/1) ... [2021-11-12 22:24:11,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:24:11,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:24:11,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:24:11,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:24:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:24:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:24:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:24:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:24:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:24:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:24:11,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:24:11,766 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:24:11,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:11 BoogieIcfgContainer [2021-11-12 22:24:11,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:24:11,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:24:11,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:24:11,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:24:11,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:24:11" (1/3) ... [2021-11-12 22:24:11,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f9fb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:11, skipping insertion in model container [2021-11-12 22:24:11,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:11" (2/3) ... [2021-11-12 22:24:11,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f9fb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:11, skipping insertion in model container [2021-11-12 22:24:11,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:11" (3/3) ... [2021-11-12 22:24:11,777 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound5.c [2021-11-12 22:24:11,783 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:24:11,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:24:11,833 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:24:11,840 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:24:11,840 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:24:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:24:11,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 22:24:11,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:11,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 22:24:11,863 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1757604175, now seen corresponding path program 1 times [2021-11-12 22:24:11,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:11,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504702789] [2021-11-12 22:24:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:11,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:11,977 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:24:11,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398499107] [2021-11-12 22:24:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:11,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:24:11,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:24:11,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:24:11,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 22:24:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:12,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:24:12,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:12,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:12,778 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:12,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504702789] [2021-11-12 22:24:12,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:24:12,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398499107] [2021-11-12 22:24:12,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398499107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:12,780 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:12,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 22:24:12,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274587411] [2021-11-12 22:24:12,783 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:12,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:24:12,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:12,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:24:12,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:24:12,816 INFO L87 Difference]: Start difference. First operand has 14 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:13,124 INFO L93 Difference]: Finished difference Result 38 states and 56 transitions. [2021-11-12 22:24:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:24:13,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-12 22:24:13,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:13,146 INFO L225 Difference]: With dead ends: 38 [2021-11-12 22:24:13,146 INFO L226 Difference]: Without dead ends: 16 [2021-11-12 22:24:13,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:24:13,152 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.40ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.86ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:13,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 32 Invalid, 51 Unknown, 0 Unchecked, 2.40ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 266.86ms Time] [2021-11-12 22:24:13,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-12 22:24:13,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-12 22:24:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:24:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-12 22:24:13,228 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2021-11-12 22:24:13,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:13,228 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-12 22:24:13,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-12 22:24:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 22:24:13,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:13,230 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:13,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:24:13,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:24:13,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:13,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:13,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1489129899, now seen corresponding path program 1 times [2021-11-12 22:24:13,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:13,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662518552] [2021-11-12 22:24:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:13,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:13,495 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:24:13,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323764686] [2021-11-12 22:24:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:13,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:24:13,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:24:13,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:24:13,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 22:24:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:13,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 22:24:13,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:24:13,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:14,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:14,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662518552] [2021-11-12 22:24:14,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:24:14,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323764686] [2021-11-12 22:24:14,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_main_~k~0#1|] [2021-11-12 22:24:14,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842715706] [2021-11-12 22:24:14,488 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-12 22:24:14,488 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:24:14,493 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:24:14,511 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:24:14,511 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:24:14,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:14,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:24:14,576 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:14,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 22:24:14,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-11-12 22:24:14,607 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-11-12 22:24:14,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 22:24:14,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:24:14,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:24:14,651 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:24:14,662 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:24:14,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:24:14,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:24:14,665 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:24:14,673 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:24:14,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:24:14,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:24:14,676 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 22:24:14,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:14,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 22:24:14,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:24:14,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:24:14,751 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-12 22:24:14,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,782 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.5 percent of original size [2021-11-12 22:24:14,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-12 22:24:14,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:24:14,786 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:444, output treesize:116 [2021-11-12 22:24:14,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 22:24:14,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-12 22:24:14,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 22:24:14,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:14,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-12 22:24:14,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,969 INFO L180 QuantifierPusher]: treesize reduction 62, result has 73.0 percent of original size [2021-11-12 22:24:14,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-12 22:24:14,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:14,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,130 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size 220 [2021-11-12 22:24:15,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,147 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-12 22:24:15,168 INFO L185 QuantifierPusher]: treesize reduction 4, result has 98.1 percent of original size 210 [2021-11-12 22:24:15,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,184 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-12 22:24:15,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-12 22:24:15,203 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-12 22:24:15,228 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-12 22:24:15,258 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 22:24:15,273 INFO L185 QuantifierPusher]: treesize reduction 33, result has 75.7 percent of original size 103 [2021-11-12 22:24:15,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-12 22:24:15,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,345 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size 220 [2021-11-12 22:24:15,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,361 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-12 22:24:15,384 INFO L185 QuantifierPusher]: treesize reduction 4, result has 98.1 percent of original size 210 [2021-11-12 22:24:15,385 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,419 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-12 22:24:15,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-12 22:24:15,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-11-12 22:24:15,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-12 22:24:15,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 22:24:15,513 INFO L185 QuantifierPusher]: treesize reduction 33, result has 75.7 percent of original size 103 [2021-11-12 22:24:15,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-12 22:24:15,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,730 INFO L180 QuantifierPusher]: treesize reduction 44, result has 88.9 percent of original size [2021-11-12 22:24:15,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 423 [2021-11-12 22:24:15,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:15,868 INFO L180 QuantifierPusher]: treesize reduction 56, result has 64.3 percent of original size [2021-11-12 22:24:15,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,877 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:15,890 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:24:15,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-12 22:24:15,895 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:15,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:15,899 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,902 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,906 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:15,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-12 22:24:15,914 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:15,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:15,921 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 22:24:15,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 22:24:15,940 INFO L180 QuantifierPusher]: treesize reduction 56, result has 65.9 percent of original size [2021-11-12 22:24:15,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-12 22:24:15,948 INFO L180 QuantifierPusher]: treesize reduction 56, result has 64.3 percent of original size [2021-11-12 22:24:15,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,957 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,967 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:15,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:24:15,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-12 22:24:15,976 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:15,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:15,980 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,987 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:15,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-12 22:24:15,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:15,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:15,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:15,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:15,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 22:24:16,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 22:24:16,012 INFO L180 QuantifierPusher]: treesize reduction 56, result has 65.9 percent of original size [2021-11-12 22:24:16,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-12 22:24:16,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,044 INFO L180 QuantifierPusher]: treesize reduction 37, result has 71.5 percent of original size [2021-11-12 22:24:16,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 22:24:16,057 INFO L180 QuantifierPusher]: treesize reduction 56, result has 64.3 percent of original size [2021-11-12 22:24:16,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:16,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:24:16,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-12 22:24:16,076 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:16,080 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:16,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-11-12 22:24:16,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:16,097 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 22:24:16,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 22:24:16,110 INFO L180 QuantifierPusher]: treesize reduction 56, result has 65.9 percent of original size [2021-11-12 22:24:16,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-12 22:24:16,120 INFO L180 QuantifierPusher]: treesize reduction 56, result has 64.3 percent of original size [2021-11-12 22:24:16,125 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,129 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,131 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:16,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:24:16,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-12 22:24:16,136 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:16,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,142 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:16,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-11-12 22:24:16,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:16,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 22:24:16,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 22:24:16,171 INFO L180 QuantifierPusher]: treesize reduction 56, result has 65.9 percent of original size [2021-11-12 22:24:16,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-12 22:24:16,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,236 INFO L180 QuantifierPusher]: treesize reduction 45, result has 68.8 percent of original size [2021-11-12 22:24:16,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 22:24:16,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,260 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-12 22:24:16,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-12 22:24:16,273 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 22:24:16,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 22:24:16,276 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,282 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,295 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 22:24:16,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-12 22:24:16,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 22:24:16,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 22:24:16,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-12 22:24:16,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-12 22:24:16,324 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 22:24:16,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 22:24:16,327 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,333 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 22:24:16,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-12 22:24:16,347 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 22:24:16,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 22:24:16,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 22:24:16,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 22:24:16,372 INFO L180 QuantifierPusher]: treesize reduction 56, result has 64.3 percent of original size [2021-11-12 22:24:16,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,381 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:16,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-12 22:24:16,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:16,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,396 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:24:16,402 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:24:16,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-12 22:24:16,405 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 22:24:16,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-12 22:24:16,409 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:24:16,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:24:16,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 22:24:16,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 22:24:16,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:24:16,437 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2021-11-12 22:24:16,444 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 22:24:17,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:24:17,367 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:17,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-12 22:24:17,367 ERROR L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-11-12 22:24:17,367 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-12 22:24:17,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:24:17,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-12 22:24:17,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-12 22:24:17,597 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 22:24:17,599 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:24:17,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:24:17 BoogieIcfgContainer [2021-11-12 22:24:17,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:24:17,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:24:17,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:24:17,610 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:24:17,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:11" (3/4) ... [2021-11-12 22:24:17,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 22:24:17,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:24:17,615 INFO L158 Benchmark]: Toolchain (without parser) took 6435.49ms. Allocated memory was 92.3MB in the beginning and 148.9MB in the end (delta: 56.6MB). Free memory was 55.5MB in the beginning and 107.3MB in the end (delta: -51.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-11-12 22:24:17,615 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:24:17,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.09ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 55.3MB in the beginning and 99.9MB in the end (delta: -44.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:24:17,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.82ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 98.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:24:17,616 INFO L158 Benchmark]: Boogie Preprocessor took 19.95ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 97.3MB in the end (delta: 990.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:24:17,616 INFO L158 Benchmark]: RCFGBuilder took 278.04ms. Allocated memory is still 123.7MB. Free memory was 97.3MB in the beginning and 86.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:24:17,617 INFO L158 Benchmark]: TraceAbstraction took 5838.98ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 86.2MB in the beginning and 108.0MB in the end (delta: -21.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-11-12 22:24:17,617 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 148.9MB. Free memory was 108.0MB in the beginning and 107.3MB in the end (delta: 780.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:24:17,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.09ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 55.3MB in the beginning and 99.9MB in the end (delta: -44.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.82ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 98.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.95ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 97.3MB in the end (delta: 990.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.04ms. Allocated memory is still 123.7MB. Free memory was 97.3MB in the beginning and 86.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5838.98ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 86.2MB in the beginning and 108.0MB in the end (delta: -21.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 148.9MB. Free memory was 108.0MB in the beginning and 107.3MB in the end (delta: 780.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] short k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_short() [L21] CALL assume_abort_if_not(k>=0 && k<=5) [L7] COND TRUE !cond [L21] RET assume_abort_if_not(k>=0 && k<=5) [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] COND TRUE 1 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) [L10] COND FALSE !(!(cond)) [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x [L27] COND TRUE 1 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) [L10] COND FALSE !(!(cond)) [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) [L30] COND TRUE !(c < k) [L37] CALL __VERIFIER_assert(k*y - (y*y) == 0) [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 266.86ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 252.54ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 9 mSDtfsCounter, 41 mSolverCounterSat, 2.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 5 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 7/11 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-12 22:24:17,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF --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 b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:24:19,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:24:19,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:24:20,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:24:20,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:24:20,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:24:20,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:24:20,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:24:20,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:24:20,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:24:20,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:24:20,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:24:20,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:24:20,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:24:20,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:24:20,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:24:20,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:24:20,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:24:20,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:24:20,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:24:20,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:24:20,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:24:20,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:24:20,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:24:20,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:24:20,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:24:20,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:24:20,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:24:20,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:24:20,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:24:20,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:24:20,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:24:20,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:24:20,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:24:20,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:24:20,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:24:20,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:24:20,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:24:20,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:24:20,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:24:20,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:24:20,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:24:20,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:24:20,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:24:20,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:24:20,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:24:20,180 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:24:20,180 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:24:20,180 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:24:20,180 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:24:20,180 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:24:20,181 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:24:20,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:24:20,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:24:20,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:24:20,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:24:20,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:24:20,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:24:20,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:24:20,185 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:24:20,185 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:24:20,185 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:24:20,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:24:20,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:24:20,186 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:24:20,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:24:20,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:24:20,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:24:20,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:24:20,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:24:20,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:24:20,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:24:20,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:24:20,188 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:24:20,188 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:24:20,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:24:20,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:24:20,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:24:20,190 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_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 [2021-11-12 22:24:20,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:24:20,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:24:20,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:24:20,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:24:20,544 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:24:20,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2021-11-12 22:24:20,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/4084e351c/b665fd7bd2be408790d18b1634d968ce/FLAG7d8a9118b [2021-11-12 22:24:21,072 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:24:21,072 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2021-11-12 22:24:21,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/4084e351c/b665fd7bd2be408790d18b1634d968ce/FLAG7d8a9118b [2021-11-12 22:24:21,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/data/4084e351c/b665fd7bd2be408790d18b1634d968ce [2021-11-12 22:24:21,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:24:21,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:24:21,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:24:21,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:24:21,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:24:21,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3243be9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21, skipping insertion in model container [2021-11-12 22:24:21,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:24:21,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:24:21,671 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_b81dd814-e97a-4058-8042-6a4df950dcb2/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2021-11-12 22:24:21,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:24:21,699 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:24:21,710 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_b81dd814-e97a-4058-8042-6a4df950dcb2/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2021-11-12 22:24:21,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:24:21,740 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:24:21,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21 WrapperNode [2021-11-12 22:24:21,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:24:21,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:24:21,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:24:21,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:24:21,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:24:21,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:24:21,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:24:21,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:24:21,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:24:21,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:24:21,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:24:21,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:24:21,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (1/1) ... [2021-11-12 22:24:21,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:24:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:24:21,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:24:21,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:24:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:24:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:24:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:24:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:24:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:24:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:24:22,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:24:22,482 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:24:22,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:22 BoogieIcfgContainer [2021-11-12 22:24:22,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:24:22,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:24:22,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:24:22,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:24:22,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:24:21" (1/3) ... [2021-11-12 22:24:22,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3853b96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:22, skipping insertion in model container [2021-11-12 22:24:22,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:24:21" (2/3) ... [2021-11-12 22:24:22,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3853b96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:22, skipping insertion in model container [2021-11-12 22:24:22,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:22" (3/3) ... [2021-11-12 22:24:22,491 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound5.c [2021-11-12 22:24:22,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:24:22,496 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:24:22,542 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:24:22,549 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:24:22,549 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:24:22,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:24:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:24:22,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:22,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:22,569 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:22,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:22,575 INFO L85 PathProgramCache]: Analyzing trace with hash -589436290, now seen corresponding path program 1 times [2021-11-12 22:24:22,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:22,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359282339] [2021-11-12 22:24:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:22,587 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:22,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:22,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:22,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:24:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:22,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:24:22,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:22,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:22,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:22,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:22,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:22,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359282339] [2021-11-12 22:24:22,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359282339] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:22,922 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:22,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:24:22,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668639217] [2021-11-12 22:24:22,925 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:22,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:24:22,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:24:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:24:22,967 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:22,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:22,991 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2021-11-12 22:24:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:24:22,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 22:24:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:23,004 INFO L225 Difference]: With dead ends: 35 [2021-11-12 22:24:23,004 INFO L226 Difference]: Without dead ends: 15 [2021-11-12 22:24:23,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:24:23,013 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:23,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.26ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:24:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-12 22:24:23,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-12 22:24:23,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:24:23,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-12 22:24:23,070 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2021-11-12 22:24:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:23,070 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-12 22:24:23,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:23,072 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-12 22:24:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:24:23,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:23,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:23,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:24:23,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:24:23,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:23,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1187358532, now seen corresponding path program 1 times [2021-11-12 22:24:23,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:23,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466512948] [2021-11-12 22:24:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:23,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:23,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:23,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:23,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:24:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:23,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:24:23,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:23,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:29,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:29,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466512948] [2021-11-12 22:24:29,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466512948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:29,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:29,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:24:29,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593545697] [2021-11-12 22:24:29,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:29,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:24:29,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:24:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:24:29,462 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:33,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:24:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:35,540 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-12 22:24:35,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:24:35,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 22:24:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:35,563 INFO L225 Difference]: With dead ends: 31 [2021-11-12 22:24:35,563 INFO L226 Difference]: Without dead ends: 26 [2021-11-12 22:24:35,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:24:35,572 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5422.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.79ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5798.28ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:35,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 82 Invalid, 51 Unknown, 0 Unchecked, 3.79ms Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 5798.28ms Time] [2021-11-12 22:24:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-12 22:24:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-12 22:24:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-12 22:24:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-11-12 22:24:35,584 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 9 [2021-11-12 22:24:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:35,584 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-11-12 22:24:35,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-11-12 22:24:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 22:24:35,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:35,586 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:35,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 22:24:35,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:24:35,818 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:35,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1711372296, now seen corresponding path program 1 times [2021-11-12 22:24:35,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:35,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400497088] [2021-11-12 22:24:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:35,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:35,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:35,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:35,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:24:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:36,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:24:36,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:24:37,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:24:47,229 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:47,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400497088] [2021-11-12 22:24:47,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400497088] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:24:47,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2047083046] [2021-11-12 22:24:47,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:47,230 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:24:47,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:24:47,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:24:47,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 22:24:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:47,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:24:47,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:48,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:24:48,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:24:53,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2047083046] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:24:53,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389285033] [2021-11-12 22:24:53,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:53,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:24:53,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:24:53,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:24:53,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 22:24:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:53,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:24:53,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:24:54,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:24:58,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389285033] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:24:58,298 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:24:58,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7, 7, 9, 7] total 17 [2021-11-12 22:24:58,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974133420] [2021-11-12 22:24:58,299 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:24:58,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 22:24:58,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:58,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 22:24:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:24:58,301 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 17 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 9 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:25:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:14,703 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2021-11-12 22:25:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:25:14,715 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 9 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 22 [2021-11-12 22:25:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:14,717 INFO L225 Difference]: With dead ends: 40 [2021-11-12 22:25:14,717 INFO L226 Difference]: Without dead ends: 37 [2021-11-12 22:25:14,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2021-11-12 22:25:14,719 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 37 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4259.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.64ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 4660.91ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:14,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 122 Invalid, 131 Unknown, 0 Unchecked, 3.64ms Time], IncrementalHoareTripleChecker [35 Valid, 88 Invalid, 0 Unknown, 8 Unchecked, 4660.91ms Time] [2021-11-12 22:25:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-12 22:25:14,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-11-12 22:25:14,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:25:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-11-12 22:25:14,730 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 22 [2021-11-12 22:25:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:14,731 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-11-12 22:25:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 9 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:25:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2021-11-12 22:25:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:25:14,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:14,732 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:14,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:25:14,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:25:15,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:25:15,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:25:15,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:25:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:15,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1482132636, now seen corresponding path program 1 times [2021-11-12 22:25:15,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:25:15,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211499884] [2021-11-12 22:25:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:15,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:25:15,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:25:15,344 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:25:15,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:25:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:15,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:25:15,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:25:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:25:18,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:25:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 22:25:31,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:25:31,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211499884] [2021-11-12 22:25:31,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211499884] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:25:31,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:25:31,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-11-12 22:25:31,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915495707] [2021-11-12 22:25:31,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:31,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:25:31,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:25:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:25:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:25:31,443 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 22:25:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:33,508 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2021-11-12 22:25:33,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:25:33,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-12 22:25:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:33,511 INFO L225 Difference]: With dead ends: 42 [2021-11-12 22:25:33,511 INFO L226 Difference]: Without dead ends: 32 [2021-11-12 22:25:33,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:25:33,513 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1422.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.75ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1582.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:33,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 43 Invalid, 17 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 1582.62ms Time] [2021-11-12 22:25:33,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-12 22:25:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-12 22:25:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-12 22:25:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-11-12 22:25:33,524 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 23 [2021-11-12 22:25:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:33,524 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-11-12 22:25:33,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 22:25:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-11-12 22:25:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 22:25:33,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:33,526 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:33,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:25:33,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:25:33,730 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:25:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1384689793, now seen corresponding path program 2 times [2021-11-12 22:25:33,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:25:33,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599632879] [2021-11-12 22:25:33,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:25:33,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:25:33,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:25:33,733 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:25:33,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:25:34,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:25:34,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:25:34,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:25:34,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:25:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:25:35,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:25:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:25:59,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:25:59,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599632879] [2021-11-12 22:25:59,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599632879] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:25:59,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1609345585] [2021-11-12 22:25:59,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:25:59,687 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:25:59,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:25:59,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:25:59,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 22:26:00,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:26:00,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:26:00,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:26:00,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:26:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:26:01,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:26:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:26:17,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1609345585] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:26:17,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201362318] [2021-11-12 22:26:17,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:26:17,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:26:17,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:26:17,231 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:26:17,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-12 22:26:17,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:26:18,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:26:18,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:26:18,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:26:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:26:19,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:26:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:26:27,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201362318] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:26:27,971 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:26:27,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10, 10, 12, 10] total 29 [2021-11-12 22:26:27,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995937271] [2021-11-12 22:26:27,972 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:26:27,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-12 22:26:27,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:26:27,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-12 22:26:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=657, Unknown=2, NotChecked=0, Total=812 [2021-11-12 22:26:27,974 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 29 states, 27 states have (on average 2.074074074074074) internal successors, (56), 27 states have internal predecessors, (56), 21 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-12 22:26:49,596 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 60 DAG size of output: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:27:14,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:14,161 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2021-11-12 22:27:14,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-12 22:27:14,162 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.074074074074074) internal successors, (56), 27 states have internal predecessors, (56), 21 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 43 [2021-11-12 22:27:14,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:14,164 INFO L225 Difference]: With dead ends: 56 [2021-11-12 22:27:14,164 INFO L226 Difference]: Without dead ends: 50 [2021-11-12 22:27:14,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 58.3s TimeCoverageRelationStatistics Valid=341, Invalid=1463, Unknown=2, NotChecked=0, Total=1806 [2021-11-12 22:27:14,166 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 64 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9372.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.74ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 10398.71ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:14,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 246 Invalid, 263 Unknown, 0 Unchecked, 4.74ms Time], IncrementalHoareTripleChecker [70 Valid, 185 Invalid, 0 Unknown, 8 Unchecked, 10398.71ms Time] [2021-11-12 22:27:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-12 22:27:14,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-12 22:27:14,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-12 22:27:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2021-11-12 22:27:14,211 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 43 [2021-11-12 22:27:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:14,212 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2021-11-12 22:27:14,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.074074074074074) internal successors, (56), 27 states have internal predecessors, (56), 21 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-12 22:27:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2021-11-12 22:27:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-12 22:27:14,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:14,215 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:14,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:14,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:14,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:14,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:27:14,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:14,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1817498849, now seen corresponding path program 3 times [2021-11-12 22:27:14,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:14,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284564479] [2021-11-12 22:27:14,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:27:14,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:14,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:14,825 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:14,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:27:17,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-12 22:27:17,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:27:17,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:27:17,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 144 proven. 108 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-12 22:27:18,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 76 proven. 108 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-12 22:27:19,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:19,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284564479] [2021-11-12 22:27:19,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284564479] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:27:19,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2063289886] [2021-11-12 22:27:19,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:27:19,890 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:27:19,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:27:19,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:27:19,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-12 22:27:23,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-12 22:27:23,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:27:23,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 22:27:23,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 22 proven. 165 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-12 22:27:25,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 22 proven. 165 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-12 22:29:44,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2063289886] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:29:44,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440255713] [2021-11-12 22:29:44,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:29:44,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:29:44,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:29:44,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:29:44,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-12 22:29:47,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-12 22:29:47,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:29:47,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:29:47,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 222 proven. 45 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-12 22:29:51,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:30:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 136 proven. 21 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:30:06,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440255713] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:30:06,461 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:30:06,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16, 16, 10, 10] total 63 [2021-11-12 22:30:06,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713774205] [2021-11-12 22:30:06,462 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:30:06,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-12 22:30:06,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:30:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-12 22:30:06,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=663, Invalid=3240, Unknown=3, NotChecked=0, Total=3906 [2021-11-12 22:30:06,466 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 63 states, 61 states have (on average 2.098360655737705) internal successors, (128), 61 states have internal predecessors, (128), 52 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (51), 50 states have call predecessors, (51), 50 states have call successors, (51) [2021-11-12 22:30:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:30:15,843 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-11-12 22:30:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 22:30:15,869 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 61 states have (on average 2.098360655737705) internal successors, (128), 61 states have internal predecessors, (128), 52 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (51), 50 states have call predecessors, (51), 50 states have call successors, (51) Word has length 85 [2021-11-12 22:30:15,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:30:15,870 INFO L225 Difference]: With dead ends: 54 [2021-11-12 22:30:15,870 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:30:15,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 135.1s TimeCoverageRelationStatistics Valid=867, Invalid=3960, Unknown=3, NotChecked=0, Total=4830 [2021-11-12 22:30:15,873 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4180.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.06ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 4768.16ms IncrementalHoareTripleChecker+Time [2021-11-12 22:30:15,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 337 Invalid, 312 Unknown, 0 Unchecked, 4.06ms Time], IncrementalHoareTripleChecker [48 Valid, 257 Invalid, 0 Unknown, 7 Unchecked, 4768.16ms Time] [2021-11-12 22:30:15,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:30:15,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:30:15,876 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) [2021-11-12 22:30:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:30:15,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2021-11-12 22:30:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:30:15,876 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:30:15,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 61 states have (on average 2.098360655737705) internal successors, (128), 61 states have internal predecessors, (128), 52 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (51), 50 states have call predecessors, (51), 50 states have call successors, (51) [2021-11-12 22:30:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:30:15,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:30:15,879 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:30:15,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:30:16,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:30:16,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:30:16,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:30:16,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 22:30:26,271 WARN L227 SmtUtils]: Spent 9.77s on a formula simplification. DAG size of input: 101 DAG size of output: 60 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-12 22:30:36,049 WARN L227 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 91 DAG size of output: 47 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-12 22:30:50,447 WARN L227 SmtUtils]: Spent 14.40s on a formula simplification. DAG size of input: 101 DAG size of output: 60 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-12 22:30:53,119 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 22:30:53,120 INFO L854 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse6 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|)) (.cse7 (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse8 (bvneg .cse7)) (.cse5 ((_ sign_extend 32) .cse6))) (let ((.cse2 (= (_ bv0 64) (bvadd .cse8 (bvmul |ULTIMATE.start_main_~y~0#1| .cse5))))) (let ((.cse4 (or (bvslt |ULTIMATE.start_main_~c~0#1| .cse5) .cse2)) (.cse0 (= (_ bv0 64) (bvadd (bvneg (bvmul (bvmul .cse7 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) (bvmul (_ bv4 64) |ULTIMATE.start_main_~x~0#1|) (bvneg (bvmul (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64)) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) .cse8))) (.cse3 (bvsle .cse6 (_ bv5 32))) (.cse1 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)))) (or (and .cse0 (= |ULTIMATE.start_main_~c~0#1| (_ bv5 64)) (= |ULTIMATE.start_main_~y~0#1| (_ bv5 64)) .cse1 .cse2) (and .cse0 (= (_ bv3 64) |ULTIMATE.start_main_~c~0#1|) .cse3 (= (_ bv3 64) |ULTIMATE.start_main_~y~0#1|) .cse4 .cse1) (and .cse0 .cse3 .cse4 (= |ULTIMATE.start_main_~c~0#1| (_ bv2 64)) (= |ULTIMATE.start_main_~y~0#1| (_ bv2 64)) .cse1) (and (bvslt (bvadd |ULTIMATE.start_main_~c~0#1| (_ bv18446744073709551615 64)) .cse5) .cse0 .cse3 (= |ULTIMATE.start_main_~y~0#1| (_ bv1 64)) .cse1 (= |ULTIMATE.start_main_~c~0#1| (_ bv1 64))) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| (_ bv4 64)) .cse3 (bvslt (_ bv3 64) .cse5) (= |ULTIMATE.start_main_~y~0#1| (_ bv4 64)) .cse1) (and .cse3 (bvsge .cse6 (_ bv0 32)) (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|) .cse1 (= |ULTIMATE.start_main_~c~0#1| (_ bv0 64)))))))) [2021-11-12 22:30:53,120 INFO L854 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (and (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|)) (let ((.cse2 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|))) (let ((.cse3 ((_ sign_extend 32) .cse2)) (.cse0 (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse1 (bvneg .cse0)) (.cse5 (bvmul |ULTIMATE.start_main_~y~0#1| .cse3))) (and (= (_ bv0 64) (bvadd (bvneg (bvmul (bvmul .cse0 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) (bvmul (_ bv4 64) |ULTIMATE.start_main_~x~0#1|) (bvneg (bvmul (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64)) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) .cse1)) (bvsle .cse2 (_ bv5 32)) (bvsge .cse2 (_ bv0 32)) (or (bvslt (bvadd |ULTIMATE.start_main_~c~0#1| (_ bv1 64)) .cse3) (= (bvadd .cse3 (bvneg (let ((.cse4 (bvadd |ULTIMATE.start_main_~y~0#1| (_ bv1 64)))) (bvmul .cse4 .cse4))) .cse5) (_ bv0 64)) (not (bvslt |ULTIMATE.start_main_~c~0#1| .cse3))) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)) (= (_ bv0 64) (bvadd .cse1 .cse5))))))) [2021-11-12 22:30:53,121 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-11-12 22:30:53,121 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-12 22:30:53,121 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 22:30:53,121 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 22:30:53,121 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 22:30:53,122 INFO L854 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (let ((.cse6 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|)) (.cse7 (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse8 (bvneg .cse7)) (.cse5 ((_ sign_extend 32) .cse6))) (let ((.cse2 (= (_ bv0 64) (bvadd .cse8 (bvmul |ULTIMATE.start_main_~y~0#1| .cse5))))) (let ((.cse4 (or (bvslt |ULTIMATE.start_main_~c~0#1| .cse5) .cse2)) (.cse0 (= (_ bv0 64) (bvadd (bvneg (bvmul (bvmul .cse7 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) (bvmul (_ bv4 64) |ULTIMATE.start_main_~x~0#1|) (bvneg (bvmul (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64)) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) .cse8))) (.cse3 (bvsle .cse6 (_ bv5 32))) (.cse1 (= |ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)))) (or (and .cse0 (= |ULTIMATE.start_main_~c~0#1| (_ bv5 64)) (= |ULTIMATE.start_main_~y~0#1| (_ bv5 64)) .cse1 .cse2) (and .cse0 (= (_ bv3 64) |ULTIMATE.start_main_~c~0#1|) .cse3 (= (_ bv3 64) |ULTIMATE.start_main_~y~0#1|) .cse4 .cse1) (and .cse0 .cse3 .cse4 (= |ULTIMATE.start_main_~c~0#1| (_ bv2 64)) (= |ULTIMATE.start_main_~y~0#1| (_ bv2 64)) .cse1) (and (bvslt (bvadd |ULTIMATE.start_main_~c~0#1| (_ bv18446744073709551615 64)) .cse5) .cse0 .cse3 (= |ULTIMATE.start_main_~y~0#1| (_ bv1 64)) .cse1 (= |ULTIMATE.start_main_~c~0#1| (_ bv1 64))) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| (_ bv4 64)) .cse3 (bvslt (_ bv3 64) .cse5) (= |ULTIMATE.start_main_~y~0#1| (_ bv4 64)) .cse1) (and .cse3 (bvsge .cse6 (_ bv0 32)) (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|) .cse1 (= |ULTIMATE.start_main_~c~0#1| (_ bv0 64)))))))) [2021-11-12 22:30:53,122 INFO L858 garLoopResultBuilder]: For program point L28-1(lines 27 36) no Hoare annotation was computed. [2021-11-12 22:30:53,122 INFO L861 garLoopResultBuilder]: At program point L39(lines 17 40) the Hoare annotation is: true [2021-11-12 22:30:53,122 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-11-12 22:30:53,123 INFO L854 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (= (_ bv0 64) (let ((.cse0 (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (bvadd (bvneg (bvmul (bvmul .cse0 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) (bvmul (_ bv4 64) |ULTIMATE.start_main_~x~0#1|) (bvneg (bvmul (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv2 64)) |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~y~0#1|)) (bvneg .cse0)))) [2021-11-12 22:30:53,123 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2021-11-12 22:30:53,123 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-11-12 22:30:53,123 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-11-12 22:30:53,124 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2021-11-12 22:30:53,124 INFO L858 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2021-11-12 22:30:53,124 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-11-12 22:30:53,127 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2021-11-12 22:30:53,129 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:30:53,134 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) 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) [2021-11-12 22:30:53,137 INFO L158 Benchmark]: Toolchain (without parser) took 391689.50ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 51.7MB in the beginning and 33.1MB in the end (delta: 18.6MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2021-11-12 22:30:53,138 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:30:53,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.32ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 53.6MB in the end (delta: -2.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-11-12 22:30:53,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.00ms. Allocated memory is still 69.2MB. Free memory was 53.6MB in the beginning and 52.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:30:53,139 INFO L158 Benchmark]: Boogie Preprocessor took 28.68ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 51.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:30:53,140 INFO L158 Benchmark]: RCFGBuilder took 661.11ms. Allocated memory is still 69.2MB. Free memory was 51.0MB in the beginning and 40.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:30:53,140 INFO L158 Benchmark]: TraceAbstraction took 390651.62ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 40.5MB in the beginning and 33.1MB in the end (delta: 7.4MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2021-11-12 22:30:53,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.32ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 53.6MB in the end (delta: -2.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.00ms. Allocated memory is still 69.2MB. Free memory was 53.6MB in the beginning and 52.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.68ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 51.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 661.11ms. Allocated memory is still 69.2MB. Free memory was 51.0MB in the beginning and 40.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 390651.62ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 40.5MB in the beginning and 33.1MB in the end (delta: 7.4MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 390.6s, OverallIterations: 6, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 80.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 36.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 27208.68ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 851 SdHoareTripleChecker+Invalid, 24657.26ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 23 IncrementalHoareTripleChecker+Unchecked, 727 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 124 mSDtfsCounter, 587 mSolverCounterSat, 18.24ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1002 GetRequests, 849 SyntacticMatches, 4 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1758 ImplicationChecksByTransitivity, 228.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=5, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 28 PreInvPairs, 49 NumberOfFragments, 675 HoareAnnotationTreeSize, 28 FomulaSimplifications, 140 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 839 FormulaSimplificationTreeSizeReductionInter, 36.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 12.9s SatisfiabilityAnalysisTime, 257.6s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 958 ConstructedInterpolants, 9 QuantifiedInterpolants, 6912 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1044 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 2201/3018 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 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:30:53,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd814-e97a-4058-8042-6a4df950dcb2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias