./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.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_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/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_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/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_1c510ab3-fc24-4544-96ad-7b81c967602b/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 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:40:58,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:40:58,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:40:58,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:40:58,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:40:58,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:40:58,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:40:58,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:40:58,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:40:58,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:40:58,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:40:58,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:40:58,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:40:58,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:40:58,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:40:58,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:40:58,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:40:58,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:40:58,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:40:58,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:40:58,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:40:58,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:40:58,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:40:58,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:40:58,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:40:58,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:40:58,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:40:58,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:40:58,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:40:58,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:40:58,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:40:58,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:40:58,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:40:58,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:40:58,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:40:58,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:40:58,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:40:58,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:40:58,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:40:58,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:40:58,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:40:58,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:40:58,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:40:58,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:40:58,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:40:58,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:40:58,210 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:40:58,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:40:58,211 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:40:58,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:40:58,212 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:40:58,212 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:40:58,213 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:40:58,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:40:58,213 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:40:58,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:40:58,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:40:58,214 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:40:58,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:40:58,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:40:58,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:40:58,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:40:58,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:40:58,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:40:58,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:40:58,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:40:58,217 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:40:58,217 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:40:58,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:40:58,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:40:58,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:40:58,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:40:58,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:40:58,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:58,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:40:58,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:40:58,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:40:58,222 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:40:58,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:40:58,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:40:58,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:40:58,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:40:58,223 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_1c510ab3-fc24-4544-96ad-7b81c967602b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f [2021-11-13 01:40:58,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:40:58,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:40:58,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:40:58,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:40:58,610 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:40:58,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-11-13 01:40:58,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/data/27bb63691/4b98c933ac23446b9b89da02fc58d58a/FLAG6d5630fee [2021-11-13 01:40:59,279 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:40:59,283 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-11-13 01:40:59,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/data/27bb63691/4b98c933ac23446b9b89da02fc58d58a/FLAG6d5630fee [2021-11-13 01:40:59,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/data/27bb63691/4b98c933ac23446b9b89da02fc58d58a [2021-11-13 01:40:59,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:40:59,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:40:59,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:59,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:40:59,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:40:59,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df9072e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59, skipping insertion in model container [2021-11-13 01:40:59,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:40:59,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:59,870 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_1c510ab3-fc24-4544-96ad-7b81c967602b/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2021-11-13 01:40:59,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:59,889 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:40:59,911 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_1c510ab3-fc24-4544-96ad-7b81c967602b/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2021-11-13 01:40:59,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:59,927 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:40:59,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59 WrapperNode [2021-11-13 01:40:59,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:59,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:59,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:40:59,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:40:59,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:59,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:40:59,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:40:59,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:40:59,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:40:59,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:40:59,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:40:59,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:40:59,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:41:00,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (1/1) ... [2021-11-13 01:41:00,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:00,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:00,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:41:00,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:41:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:41:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:41:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:41:00,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:41:00,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:41:00,470 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:41:00,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:00 BoogieIcfgContainer [2021-11-13 01:41:00,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:41:00,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:41:00,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:41:00,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:41:00,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:59" (1/3) ... [2021-11-13 01:41:00,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6635523e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:00, skipping insertion in model container [2021-11-13 01:41:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:59" (2/3) ... [2021-11-13 01:41:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6635523e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:00, skipping insertion in model container [2021-11-13 01:41:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:00" (3/3) ... [2021-11-13 01:41:00,482 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2021-11-13 01:41:00,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:41:00,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:41:00,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:41:00,544 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 [2021-11-13 01:41:00,544 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:41:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 29 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:00,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:41:00,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:00,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:41:00,567 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:00,589 INFO L85 PathProgramCache]: Analyzing trace with hash 6922709, now seen corresponding path program 1 times [2021-11-13 01:41:00,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:00,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128216313] [2021-11-13 01:41:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:00,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:00,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:00,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128216313] [2021-11-13 01:41:00,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128216313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:00,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:00,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:41:00,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562463590] [2021-11-13 01:41:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:00,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:00,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:00,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:00,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:00,898 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 29 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:01,072 INFO L93 Difference]: Finished difference Result 86 states and 152 transitions. [2021-11-13 01:41:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 01:41:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:01,088 INFO L225 Difference]: With dead ends: 86 [2021-11-13 01:41:01,089 INFO L226 Difference]: Without dead ends: 51 [2021-11-13 01:41:01,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:01,097 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 40 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.08ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.77ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:01,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 67 Invalid, 39 Unknown, 0 Unchecked, 7.08ms Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 89.77ms Time] [2021-11-13 01:41:01,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-13 01:41:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-13 01:41:01,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.7) internal successors, (85), 50 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 85 transitions. [2021-11-13 01:41:01,160 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 85 transitions. Word has length 4 [2021-11-13 01:41:01,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:01,161 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 85 transitions. [2021-11-13 01:41:01,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 85 transitions. [2021-11-13 01:41:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:41:01,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:01,162 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-13 01:41:01,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:41:01,163 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash 78566834, now seen corresponding path program 1 times [2021-11-13 01:41:01,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:01,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780005680] [2021-11-13 01:41:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:01,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:01,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:01,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780005680] [2021-11-13 01:41:01,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780005680] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:01,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067698076] [2021-11-13 01:41:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:01,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:01,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:01,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:41:01,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:41:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:01,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:41:01,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:01,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 01:41:01,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067698076] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:01,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:41:01,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3] total 4 [2021-11-13 01:41:01,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298090129] [2021-11-13 01:41:01,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:01,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:01,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:01,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:01,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:41:01,506 INFO L87 Difference]: Start difference. First operand 51 states and 85 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:01,612 INFO L93 Difference]: Finished difference Result 125 states and 212 transitions. [2021-11-13 01:41:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:01,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 01:41:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:01,616 INFO L225 Difference]: With dead ends: 125 [2021-11-13 01:41:01,617 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 01:41:01,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:41:01,621 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.56ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.87ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:01,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 59 Invalid, 34 Unknown, 0 Unchecked, 1.56ms Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 74.87ms Time] [2021-11-13 01:41:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 01:41:01,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 01:41:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.683673469387755) internal successors, (165), 98 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 165 transitions. [2021-11-13 01:41:01,641 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 165 transitions. Word has length 7 [2021-11-13 01:41:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:01,642 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 165 transitions. [2021-11-13 01:41:01,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 165 transitions. [2021-11-13 01:41:01,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 01:41:01,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:01,644 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:01,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:01,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:01,870 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1370706601, now seen corresponding path program 1 times [2021-11-13 01:41:01,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:01,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454302360] [2021-11-13 01:41:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:01,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 01:41:01,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:01,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454302360] [2021-11-13 01:41:01,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454302360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:01,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:01,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:41:01,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208677973] [2021-11-13 01:41:01,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:01,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:01,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:01,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:01,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:01,934 INFO L87 Difference]: Start difference. First operand 99 states and 165 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:01,986 INFO L93 Difference]: Finished difference Result 152 states and 253 transitions. [2021-11-13 01:41:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:01,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-13 01:41:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:01,988 INFO L225 Difference]: With dead ends: 152 [2021-11-13 01:41:01,988 INFO L226 Difference]: Without dead ends: 54 [2021-11-13 01:41:01,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:01,991 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.99ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:01,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 43 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 38.99ms Time] [2021-11-13 01:41:01,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-13 01:41:02,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-13 01:41:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.6603773584905661) internal successors, (88), 53 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 88 transitions. [2021-11-13 01:41:02,001 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 88 transitions. Word has length 20 [2021-11-13 01:41:02,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:02,002 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 88 transitions. [2021-11-13 01:41:02,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 88 transitions. [2021-11-13 01:41:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 01:41:02,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:02,003 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:02,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:41:02,004 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2079797139, now seen corresponding path program 2 times [2021-11-13 01:41:02,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:02,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596530054] [2021-11-13 01:41:02,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:02,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:02,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:02,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596530054] [2021-11-13 01:41:02,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596530054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:02,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:02,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:41:02,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233786665] [2021-11-13 01:41:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:02,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:02,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:02,086 INFO L87 Difference]: Start difference. First operand 54 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:02,140 INFO L93 Difference]: Finished difference Result 114 states and 186 transitions. [2021-11-13 01:41:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:02,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-13 01:41:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:02,141 INFO L225 Difference]: With dead ends: 114 [2021-11-13 01:41:02,142 INFO L226 Difference]: Without dead ends: 64 [2021-11-13 01:41:02,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:02,144 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.91ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:02,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 40.91ms Time] [2021-11-13 01:41:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-13 01:41:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-11-13 01:41:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.5901639344262295) internal successors, (97), 61 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 97 transitions. [2021-11-13 01:41:02,154 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 97 transitions. Word has length 20 [2021-11-13 01:41:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:02,154 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 97 transitions. [2021-11-13 01:41:02,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,155 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2021-11-13 01:41:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 01:41:02,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:02,156 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:02,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:41:02,157 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:02,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1981112723, now seen corresponding path program 1 times [2021-11-13 01:41:02,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:02,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198972812] [2021-11-13 01:41:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:02,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 01:41:02,216 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:02,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198972812] [2021-11-13 01:41:02,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198972812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:02,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:02,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:41:02,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757311470] [2021-11-13 01:41:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:02,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:02,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:02,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:02,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:02,219 INFO L87 Difference]: Start difference. First operand 62 states and 97 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:02,308 INFO L93 Difference]: Finished difference Result 108 states and 173 transitions. [2021-11-13 01:41:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:02,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-13 01:41:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:02,313 INFO L225 Difference]: With dead ends: 108 [2021-11-13 01:41:02,313 INFO L226 Difference]: Without dead ends: 78 [2021-11-13 01:41:02,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:41:02,316 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.21ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.84ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:02,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 44 Invalid, 66 Unknown, 0 Unchecked, 2.21ms Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 69.84ms Time] [2021-11-13 01:41:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-13 01:41:02,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2021-11-13 01:41:02,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4864864864864864) internal successors, (110), 74 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2021-11-13 01:41:02,337 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 24 [2021-11-13 01:41:02,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:02,337 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2021-11-13 01:41:02,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2021-11-13 01:41:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 01:41:02,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:02,339 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:02,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 01:41:02,340 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:02,340 INFO L85 PathProgramCache]: Analyzing trace with hash 516459890, now seen corresponding path program 1 times [2021-11-13 01:41:02,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:02,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561160272] [2021-11-13 01:41:02,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:02,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:02,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:02,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561160272] [2021-11-13 01:41:02,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561160272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:02,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028046105] [2021-11-13 01:41:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:02,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:02,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:02,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:41:02,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 01:41:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:02,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:41:02,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:02,623 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:02,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-13 01:41:02,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028046105] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:02,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:41:02,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 6 [2021-11-13 01:41:02,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509903232] [2021-11-13 01:41:02,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:02,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:02,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:02,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:02,777 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:02,842 INFO L93 Difference]: Finished difference Result 120 states and 173 transitions. [2021-11-13 01:41:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:02,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-13 01:41:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:02,844 INFO L225 Difference]: With dead ends: 120 [2021-11-13 01:41:02,844 INFO L226 Difference]: Without dead ends: 118 [2021-11-13 01:41:02,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:02,845 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.41ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:02,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 55.41ms Time] [2021-11-13 01:41:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-13 01:41:02,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2021-11-13 01:41:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4782608695652173) internal successors, (170), 115 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2021-11-13 01:41:02,859 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 38 [2021-11-13 01:41:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:02,860 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2021-11-13 01:41:02,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2021-11-13 01:41:02,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 01:41:02,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:02,862 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:02,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:03,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:03,088 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:03,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:03,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1900093657, now seen corresponding path program 1 times [2021-11-13 01:41:03,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:03,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631860530] [2021-11-13 01:41:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:03,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:03,187 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:03,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631860530] [2021-11-13 01:41:03,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631860530] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:03,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554719259] [2021-11-13 01:41:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:03,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:03,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:03,195 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:41:03,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 01:41:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:03,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:41:03,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-13 01:41:03,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:03,420 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-13 01:41:03,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554719259] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:03,421 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:03,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 8 [2021-11-13 01:41:03,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262119987] [2021-11-13 01:41:03,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:03,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:41:03,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:03,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:41:03,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:03,423 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:03,544 INFO L93 Difference]: Finished difference Result 236 states and 354 transitions. [2021-11-13 01:41:03,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:41:03,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-13 01:41:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:03,546 INFO L225 Difference]: With dead ends: 236 [2021-11-13 01:41:03,546 INFO L226 Difference]: Without dead ends: 124 [2021-11-13 01:41:03,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:03,548 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 41 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.19ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:03,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 44 Invalid, 117 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [28 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 100.19ms Time] [2021-11-13 01:41:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-13 01:41:03,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 112. [2021-11-13 01:41:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 111 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2021-11-13 01:41:03,563 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 40 [2021-11-13 01:41:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:03,564 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2021-11-13 01:41:03,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2021-11-13 01:41:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-13 01:41:03,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:03,567 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:03,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-13 01:41:03,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:03,795 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:03,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1902950406, now seen corresponding path program 1 times [2021-11-13 01:41:03,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:03,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481887018] [2021-11-13 01:41:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:03,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:03,898 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:03,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481887018] [2021-11-13 01:41:03,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481887018] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:03,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559255787] [2021-11-13 01:41:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:03,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:03,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:03,901 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:41:03,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 01:41:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:03,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:41:03,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:04,067 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-13 01:41:04,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-13 01:41:04,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559255787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:04,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:04,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 8 [2021-11-13 01:41:04,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100584934] [2021-11-13 01:41:04,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:04,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:41:04,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:41:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:04,205 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:04,309 INFO L93 Difference]: Finished difference Result 246 states and 291 transitions. [2021-11-13 01:41:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:41:04,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-13 01:41:04,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:04,318 INFO L225 Difference]: With dead ends: 246 [2021-11-13 01:41:04,319 INFO L226 Difference]: Without dead ends: 155 [2021-11-13 01:41:04,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:04,320 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.23ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.02ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:04,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 32 Invalid, 91 Unknown, 0 Unchecked, 1.23ms Time], IncrementalHoareTripleChecker [19 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 87.02ms Time] [2021-11-13 01:41:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-13 01:41:04,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 129. [2021-11-13 01:41:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.21875) internal successors, (156), 128 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2021-11-13 01:41:04,368 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 54 [2021-11-13 01:41:04,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:04,369 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2021-11-13 01:41:04,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:04,369 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2021-11-13 01:41:04,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 01:41:04,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:04,373 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:04,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-13 01:41:04,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:04,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1551020902, now seen corresponding path program 1 times [2021-11-13 01:41:04,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:04,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689390227] [2021-11-13 01:41:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:04,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 99 proven. 30 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-13 01:41:04,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:04,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689390227] [2021-11-13 01:41:04,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689390227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:04,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232405230] [2021-11-13 01:41:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:04,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:41:04,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:04,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:41:04,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 01:41:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:04,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:41:04,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 01:41:04,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 01:41:04,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232405230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:04,969 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:04,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-13 01:41:04,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050691295] [2021-11-13 01:41:04,969 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:04,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:41:04,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:04,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:41:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:04,971 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:05,003 INFO L93 Difference]: Finished difference Result 199 states and 228 transitions. [2021-11-13 01:41:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:41:05,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-13 01:41:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:05,006 INFO L225 Difference]: With dead ends: 199 [2021-11-13 01:41:05,006 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:41:05,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:05,014 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.55ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:05,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 24 Unknown, 0 Unchecked, 1.70ms Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 16.55ms Time] [2021-11-13 01:41:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:41:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:41:05,015 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) [2021-11-13 01:41:05,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:41:05,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2021-11-13 01:41:05,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:05,016 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:41:05,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:41:05,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:41:05,018 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:41:05,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:05,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-13 01:41:05,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:41:05,853 INFO L861 garLoopResultBuilder]: At program point L225(lines 20 229) the Hoare annotation is: true [2021-11-13 01:41:05,853 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 130) no Hoare annotation was computed. [2021-11-13 01:41:05,854 INFO L854 garLoopResultBuilder]: At program point L60(lines 60 207) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,854 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 186) no Hoare annotation was computed. [2021-11-13 01:41:05,854 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2021-11-13 01:41:05,854 INFO L854 garLoopResultBuilder]: At program point L85(lines 84 195) the Hoare annotation is: (and (<= 8672 |ULTIMATE.start_main_~s__state~0#1|) (< |ULTIMATE.start_main_~blastFlag~0#1| 5)) [2021-11-13 01:41:05,854 INFO L854 garLoopResultBuilder]: At program point L52(lines 52 211) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,854 INFO L854 garLoopResultBuilder]: At program point L44(lines 44 215) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,854 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:41:05,855 INFO L854 garLoopResultBuilder]: At program point L185(lines 20 229) the Hoare annotation is: false [2021-11-13 01:41:05,855 INFO L861 garLoopResultBuilder]: At program point L228(lines 20 229) the Hoare annotation is: true [2021-11-13 01:41:05,855 INFO L854 garLoopResultBuilder]: At program point L80(lines 80 197) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (and (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0) (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0))) [2021-11-13 01:41:05,855 INFO L854 garLoopResultBuilder]: At program point L72(lines 72 201) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,855 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 86 195) no Hoare annotation was computed. [2021-11-13 01:41:05,855 INFO L854 garLoopResultBuilder]: At program point L64(lines 64 205) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,855 INFO L854 garLoopResultBuilder]: At program point L188(lines 34 223) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,856 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 209) no Hoare annotation was computed. [2021-11-13 01:41:05,856 INFO L854 garLoopResultBuilder]: At program point L48(lines 48 213) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,856 INFO L854 garLoopResultBuilder]: At program point L57(lines 56 209) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~s__state~0#1| 8640) (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (< 8512 |ULTIMATE.start_main_~s__state~0#1|)) [2021-11-13 01:41:05,856 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2021-11-13 01:41:05,856 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 86 195) no Hoare annotation was computed. [2021-11-13 01:41:05,856 INFO L854 garLoopResultBuilder]: At program point L41(lines 41 216) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,856 INFO L854 garLoopResultBuilder]: At program point L132(lines 125 134) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~s__state~0#1| 8640) (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (< 8512 |ULTIMATE.start_main_~s__state~0#1|)) [2021-11-13 01:41:05,857 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:41:05,857 INFO L854 garLoopResultBuilder]: At program point L124(lines 117 135) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~s__state~0#1| 8640) (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (< 8512 |ULTIMATE.start_main_~s__state~0#1|)) [2021-11-13 01:41:05,857 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 135) no Hoare annotation was computed. [2021-11-13 01:41:05,857 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 195) no Hoare annotation was computed. [2021-11-13 01:41:05,857 INFO L854 garLoopResultBuilder]: At program point L76(lines 76 199) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,857 INFO L854 garLoopResultBuilder]: At program point L68(lines 68 203) the Hoare annotation is: (let ((.cse0 (<= 8640 |ULTIMATE.start_main_~s__state~0#1|))) (or (<= |ULTIMATE.start_main_~blastFlag~0#1| 2) (and (< |ULTIMATE.start_main_~blastFlag~0#1| 5) .cse0) (and (not (= |ULTIMATE.start_main_~s__hit~0#1| 0)) (<= |ULTIMATE.start_main_~s__state~0#1| 8640) .cse0))) [2021-11-13 01:41:05,857 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-13 01:41:05,862 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:05,863 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:41:05,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:41:05 BoogieIcfgContainer [2021-11-13 01:41:05,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:41:05,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:41:05,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:41:05,903 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:41:05,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:00" (3/4) ... [2021-11-13 01:41:05,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:41:05,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-13 01:41:05,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 01:41:05,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 01:41:05,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:41:05,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:41:05,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:41:05,981 INFO L158 Benchmark]: Toolchain (without parser) took 6367.75ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 63.8MB in the beginning and 67.7MB in the end (delta: -3.9MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-11-13 01:41:05,981 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory was 80.5MB in the beginning and 80.4MB in the end (delta: 88.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:05,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.28ms. Allocated memory is still 100.7MB. Free memory was 63.5MB in the beginning and 75.6MB in the end (delta: -12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:41:05,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.96ms. Allocated memory is still 100.7MB. Free memory was 75.6MB in the beginning and 74.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:05,983 INFO L158 Benchmark]: Boogie Preprocessor took 26.88ms. Allocated memory is still 100.7MB. Free memory was 74.1MB in the beginning and 72.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:41:05,983 INFO L158 Benchmark]: RCFGBuilder took 474.61ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 58.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 01:41:05,984 INFO L158 Benchmark]: TraceAbstraction took 5427.83ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 57.5MB in the beginning and 70.8MB in the end (delta: -13.3MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2021-11-13 01:41:05,984 INFO L158 Benchmark]: Witness Printer took 77.33ms. Allocated memory is still 125.8MB. Free memory was 70.8MB in the beginning and 67.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:41:05,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory was 80.5MB in the beginning and 80.4MB in the end (delta: 88.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.28ms. Allocated memory is still 100.7MB. Free memory was 63.5MB in the beginning and 75.6MB in the end (delta: -12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.96ms. Allocated memory is still 100.7MB. Free memory was 75.6MB in the beginning and 74.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.88ms. Allocated memory is still 100.7MB. Free memory was 74.1MB in the beginning and 72.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.61ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 58.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5427.83ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 57.5MB in the beginning and 70.8MB in the end (delta: -13.3MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. * Witness Printer took 77.33ms. Allocated memory is still 125.8MB. Free memory was 70.8MB in the beginning and 67.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 227]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 573.56ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 470 SdHoareTripleChecker+Invalid, 437.62ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 297 mSDtfsCounter, 421 mSolverCounterSat, 18.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=8, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 45 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 108 NumberOfFragments, 278 HoareAnnotationTreeSize, 18 FomulaSimplifications, 473 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 853 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 506 NumberOfCodeBlocks, 506 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 706 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 512 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 779/933 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 8672 <= s__state && blastFlag < 5 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (s__state <= 8640 && blastFlag <= 2) && 8512 < s__state - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: ((s__state <= 8640 && 8640 <= s__state) || blastFlag <= 2) || (blastFlag < 5 && 8640 <= s__state) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (s__state <= 8640 && blastFlag <= 2) && 8512 < s__state - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (s__state <= 8640 && blastFlag <= 2) && 8512 < s__state - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (blastFlag <= 2 || (blastFlag < 5 && 8640 <= s__state)) || ((!(s__hit == 0) && s__state <= 8640) && 8640 <= s__state) RESULT: Ultimate proved your program to be correct! [2021-11-13 01:41:06,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c510ab3-fc24-4544-96ad-7b81c967602b/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: TRUE