./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh --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 64bit --witnessprinter.graph.data.programhash 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:32:50,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:32:50,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:32:50,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:32:50,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:32:50,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:32:50,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:32:50,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:32:50,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:32:50,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:32:50,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:32:50,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:32:50,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:32:50,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:32:50,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:32:50,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:32:50,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:32:50,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:32:50,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:32:50,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:32:50,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:32:50,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:32:50,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:32:50,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:32:50,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:32:50,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:32:50,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:32:50,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:32:50,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:32:50,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:32:50,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:32:50,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:32:50,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:32:50,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:32:50,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:32:50,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:32:50,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:32:50,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:32:50,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:32:50,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:32:50,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:32:50,148 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:32:50,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:32:50,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:32:50,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:32:50,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:32:50,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:32:50,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:32:50,164 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:32:50,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:32:50,164 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:32:50,164 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:32:50,164 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:32:50,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:32:50,165 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:32:50,165 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:32:50,165 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:32:50,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:32:50,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:32:50,166 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:32:50,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:32:50,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:32:50,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:32:50,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:32:50,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:32:50,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:32:50,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:32:50,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:32:50,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:32:50,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:32:50,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:32:50,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:32:50,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:32:50,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 [2022-12-14 14:32:50,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:32:50,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:32:50,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:32:50,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:32:50,352 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:32:50,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-12-14 14:32:52,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:32:53,132 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:32:53,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-12-14 14:32:53,138 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data/e3a0dc8c9/0c0712f61bf14358823d1399a01f4c1d/FLAG2d59e156b [2022-12-14 14:32:53,148 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data/e3a0dc8c9/0c0712f61bf14358823d1399a01f4c1d [2022-12-14 14:32:53,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:32:53,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:32:53,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:32:53,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:32:53,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:32:53,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6caa39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53, skipping insertion in model container [2022-12-14 14:32:53,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:32:53,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:32:53,269 WARN L237 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_b75b24a7-7267-4a78-a86a-b43d071369ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-12-14 14:32:53,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:32:53,311 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:32:53,318 WARN L237 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_b75b24a7-7267-4a78-a86a-b43d071369ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-12-14 14:32:53,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:32:53,350 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:32:53,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53 WrapperNode [2022-12-14 14:32:53,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:32:53,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:32:53,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:32:53,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:32:53,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,381 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 229 [2022-12-14 14:32:53,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:32:53,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:32:53,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:32:53,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:32:53,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:32:53,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:32:53,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:32:53,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:32:53,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (1/1) ... [2022-12-14 14:32:53,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:32:53,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:32:53,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:32:53,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:32:53,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:32:53,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:32:53,542 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:32:53,544 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:32:53,802 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:32:53,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:32:53,820 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:32:53,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:53 BoogieIcfgContainer [2022-12-14 14:32:53,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:32:53,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:32:53,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:32:53,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:32:53,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:32:53" (1/3) ... [2022-12-14 14:32:53,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4984a29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:32:53, skipping insertion in model container [2022-12-14 14:32:53,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:53" (2/3) ... [2022-12-14 14:32:53,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4984a29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:32:53, skipping insertion in model container [2022-12-14 14:32:53,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:53" (3/3) ... [2022-12-14 14:32:53,830 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-12-14 14:32:53,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:32:53,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:32:53,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:32:53,887 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27dd0dc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:32:53,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:32:53,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:32:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:32:53,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:32:53,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:32:53,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:32:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:32:53,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 14:32:53,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:32:53,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978320986] [2022-12-14 14:32:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:32:53,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:32:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:32:54,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:32:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:32:54,124 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:32:54,126 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:32:54,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:32:54,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:32:54,131 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:32:54,134 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:32:54,146 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 14:32:54,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:32:54 BoogieIcfgContainer [2022-12-14 14:32:54,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:32:54,152 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:32:54,152 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:32:54,152 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:32:54,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:53" (3/4) ... [2022-12-14 14:32:54,155 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:32:54,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:32:54,156 INFO L158 Benchmark]: Toolchain (without parser) took 1004.74ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 82.7MB in the end (delta: 33.3MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-12-14 14:32:54,156 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 100.7MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:32:54,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.96ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 102.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:32:54,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.48ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:32:54,157 INFO L158 Benchmark]: Boogie Preprocessor took 22.18ms. Allocated memory is still 151.0MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:32:54,157 INFO L158 Benchmark]: RCFGBuilder took 417.67ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 113.5MB in the end (delta: -15.8MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2022-12-14 14:32:54,158 INFO L158 Benchmark]: TraceAbstraction took 326.63ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 82.7MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-14 14:32:54,158 INFO L158 Benchmark]: Witness Printer took 3.32ms. Allocated memory is still 151.0MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:32:54,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 100.7MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.96ms. Allocated memory is still 151.0MB. Free memory was 116.1MB in the beginning and 102.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.48ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.18ms. Allocated memory is still 151.0MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.67ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 113.5MB in the end (delta: -15.8MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * TraceAbstraction took 326.63ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 82.7MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.32ms. Allocated memory is still 151.0MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 135, overapproximation of bitwiseOr at line 133, overapproximation of bitwiseAnd at line 120. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_29; [L49] SORT_31 input_32; [L50] SORT_1 input_34; [L51] SORT_31 input_36; [L52] SORT_1 input_38; [L53] SORT_1 input_40; [L54] SORT_1 input_44; [L55] SORT_1 input_46; [L56] SORT_1 input_48; [L57] SORT_1 input_50; [L58] SORT_3 input_52; [L59] SORT_1 input_55; [L60] SORT_1 input_59; [L61] SORT_1 input_63; [L62] SORT_1 input_65; [L63] SORT_67 input_68; [L64] SORT_1 input_70; [L65] SORT_1 input_72; [L66] SORT_1 input_82; [L67] SORT_1 input_88; [L69] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 init_9_arg_1 = var_7; [L78] state_8 = init_9_arg_1 [L79] SORT_1 init_15_arg_1 = var_7; [L80] state_14 = init_15_arg_1 [L81] SORT_1 init_26_arg_1 = var_7; [L82] state_25 = init_26_arg_1 [L83] SORT_1 init_28_arg_1 = var_7; [L84] state_27 = init_28_arg_1 [L85] SORT_1 init_43_arg_1 = var_7; [L86] state_42 = init_43_arg_1 [L87] SORT_1 init_58_arg_1 = var_7; [L88] state_57 = init_58_arg_1 [L89] SORT_1 init_62_arg_1 = var_7; [L90] state_61 = init_62_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_43_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L93] input_2 = __VERIFIER_nondet_uchar() [L94] input_4 = __VERIFIER_nondet_uchar() [L95] input_5 = __VERIFIER_nondet_uchar() [L96] input_6 = __VERIFIER_nondet_uchar() [L97] input_29 = __VERIFIER_nondet_uchar() [L98] input_32 = __VERIFIER_nondet_uchar() [L99] input_34 = __VERIFIER_nondet_uchar() [L100] input_36 = __VERIFIER_nondet_uchar() [L101] input_38 = __VERIFIER_nondet_uchar() [L102] input_40 = __VERIFIER_nondet_uchar() [L103] input_44 = __VERIFIER_nondet_uchar() [L104] input_46 = __VERIFIER_nondet_uchar() [L105] input_48 = __VERIFIER_nondet_uchar() [L106] input_50 = __VERIFIER_nondet_uchar() [L107] input_52 = __VERIFIER_nondet_uchar() [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_59 = __VERIFIER_nondet_uchar() [L110] input_63 = __VERIFIER_nondet_uchar() [L111] input_65 = __VERIFIER_nondet_uchar() [L112] input_68 = __VERIFIER_nondet_ushort() [L113] input_70 = __VERIFIER_nondet_uchar() [L114] input_72 = __VERIFIER_nondet_uchar() [L115] input_82 = __VERIFIER_nondet_uchar() [L116] input_88 = __VERIFIER_nondet_uchar() [L119] SORT_1 var_11_arg_0 = state_8; [L120] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L121] SORT_10 var_11 = var_11_arg_0; [L122] SORT_10 var_13_arg_0 = var_11; [L123] SORT_10 var_13_arg_1 = var_12; [L124] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L125] SORT_1 var_16_arg_0 = state_14; [L126] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L127] SORT_10 var_16 = var_16_arg_0; [L128] SORT_10 var_17_arg_0 = var_16; [L129] SORT_10 var_17_arg_1 = var_12; [L130] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L131] SORT_1 var_18_arg_0 = var_13; [L132] SORT_1 var_18_arg_1 = var_17; [L133] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L134] SORT_1 var_22_arg_0 = var_18; [L135] SORT_1 var_22 = ~var_22_arg_0; [L136] SORT_1 var_23_arg_0 = var_21; [L137] SORT_1 var_23_arg_1 = var_22; [L138] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L139] var_23 = var_23 & mask_SORT_1 [L140] SORT_1 bad_24_arg_0 = var_23; [L141] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 14:32:54,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh --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 64bit --witnessprinter.graph.data.programhash 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:32:55,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:32:55,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:32:55,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:32:55,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:32:55,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:32:55,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:32:55,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:32:55,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:32:55,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:32:55,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:32:55,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:32:55,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:32:55,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:32:55,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:32:55,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:32:55,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:32:55,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:32:55,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:32:55,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:32:55,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:32:55,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:32:55,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:32:55,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:32:55,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:32:55,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:32:55,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:32:55,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:32:55,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:32:55,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:32:55,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:32:55,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:32:55,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:32:55,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:32:55,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:32:55,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:32:55,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:32:55,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:32:55,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:32:55,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:32:55,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:32:55,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 14:32:55,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:32:55,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:32:55,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:32:55,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:32:55,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:32:55,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:32:55,800 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:32:55,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:32:55,800 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:32:55,801 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:32:55,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:32:55,801 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:32:55,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:32:55,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:32:55,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:32:55,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:32:55,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:32:55,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:32:55,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:32:55,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:32:55,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:32:55,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:32:55,804 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:32:55,804 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:32:55,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:32:55,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:32:55,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:32:55,804 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ae50a693e61df6a46ca7072a4bb10f574babd0618478325de057d7504311e66 [2022-12-14 14:32:56,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:32:56,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:32:56,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:32:56,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:32:56,061 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:32:56,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-12-14 14:32:58,626 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:32:58,797 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:32:58,798 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-12-14 14:32:58,806 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data/09255577a/3ff640e5d8a040d0be06975dfd14ca0a/FLAGe737450e9 [2022-12-14 14:32:58,819 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/data/09255577a/3ff640e5d8a040d0be06975dfd14ca0a [2022-12-14 14:32:58,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:32:58,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:32:58,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:32:58,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:32:58,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:32:58,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:32:58" (1/1) ... [2022-12-14 14:32:58,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e4290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:58, skipping insertion in model container [2022-12-14 14:32:58,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:32:58" (1/1) ... [2022-12-14 14:32:58,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:32:58,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:32:58,960 WARN L237 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_b75b24a7-7267-4a78-a86a-b43d071369ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-12-14 14:32:59,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:32:59,028 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:32:59,039 WARN L237 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_b75b24a7-7267-4a78-a86a-b43d071369ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1107,1120] [2022-12-14 14:32:59,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:32:59,089 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:32:59,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59 WrapperNode [2022-12-14 14:32:59,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:32:59,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:32:59,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:32:59,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:32:59,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,120 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 229 [2022-12-14 14:32:59,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:32:59,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:32:59,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:32:59,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:32:59,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:32:59,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:32:59,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:32:59,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:32:59,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (1/1) ... [2022-12-14 14:32:59,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:32:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:32:59,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:32:59,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:32:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:32:59,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:32:59,303 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:32:59,305 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:32:59,514 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:32:59,519 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:32:59,520 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:32:59,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:59 BoogieIcfgContainer [2022-12-14 14:32:59,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:32:59,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:32:59,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:32:59,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:32:59,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:32:58" (1/3) ... [2022-12-14 14:32:59,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b885d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:32:59, skipping insertion in model container [2022-12-14 14:32:59,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:32:59" (2/3) ... [2022-12-14 14:32:59,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b885d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:32:59, skipping insertion in model container [2022-12-14 14:32:59,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:59" (3/3) ... [2022-12-14 14:32:59,528 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2022-12-14 14:32:59,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:32:59,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:32:59,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:32:59,584 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29eda294, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:32:59,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:32:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:32:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:32:59,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:32:59,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:32:59,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:32:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:32:59,601 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 14:32:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:32:59,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111924867] [2022-12-14 14:32:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:32:59,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:32:59,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:32:59,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:32:59,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 14:32:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:32:59,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 14:32:59,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:32:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:32:59,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:32:59,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:32:59,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111924867] [2022-12-14 14:32:59,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111924867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:32:59,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:32:59,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:32:59,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235290335] [2022-12-14 14:32:59,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:32:59,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:32:59,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:32:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:32:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:32:59,886 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:32:59,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:32:59,935 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 14:32:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:32:59,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-12-14 14:32:59,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:32:59,943 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:32:59,943 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:32:59,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:32:59,947 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:32:59,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:32:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:32:59,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 14:32:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:32:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 14:32:59,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 14:32:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:32:59,971 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 14:32:59,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:32:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 14:32:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:32:59,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:32:59,972 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 14:32:59,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:33:00,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:33:00,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:33:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:00,174 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 14:33:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:33:00,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408164594] [2022-12-14 14:33:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:00,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:33:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:33:00,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:33:00,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 14:33:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:00,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 14:33:00,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:00,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:00,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:33:00,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408164594] [2022-12-14 14:33:00,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408164594] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:00,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [649125281] [2022-12-14 14:33:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:00,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:33:00,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:33:00,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:33:00,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 14:33:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:00,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 14:33:00,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:01,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:01,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [649125281] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138451775] [2022-12-14 14:33:01,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:01,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:01,207 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:01,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:33:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:01,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 14:33:01,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:01,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:01,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138451775] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:01,634 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:33:01,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-12-14 14:33:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600427966] [2022-12-14 14:33:01,635 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:33:01,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 14:33:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:33:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 14:33:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:33:01,637 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:01,721 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 14:33:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:33:01,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 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 8 [2022-12-14 14:33:01,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:01,722 INFO L225 Difference]: With dead ends: 16 [2022-12-14 14:33:01,722 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:33:01,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 14:33:01,724 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:01,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:33:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:33:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 14:33:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 14:33:01,729 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 14:33:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:01,729 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 14:33:01,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 14:33:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:33:01,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:01,730 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 14:33:01,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 14:33:01,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 14:33:02,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 14:33:02,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:33:02,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:33:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 14:33:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:33:02,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933648948] [2022-12-14 14:33:02,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:33:02,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:33:02,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:33:02,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:33:02,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 14:33:02,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:33:02,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:02,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 14:33:02,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:02,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:03,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:33:03,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933648948] [2022-12-14 14:33:03,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933648948] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:03,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2126372352] [2022-12-14 14:33:03,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:33:03,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:33:03,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:33:03,750 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:33:03,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 14:33:03,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:33:03,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:03,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-14 14:33:03,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:04,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:04,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2126372352] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:04,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512943401] [2022-12-14 14:33:04,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:33:04,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:04,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:04,820 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:04,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:33:04,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:33:04,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:04,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 58 conjunts are in the unsatisfiable core [2022-12-14 14:33:04,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:05,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:05,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:05,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512943401] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:05,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:33:05,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 19 [2022-12-14 14:33:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938719471] [2022-12-14 14:33:05,706 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:33:05,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 14:33:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:33:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 14:33:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2022-12-14 14:33:05,707 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:05,865 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-12-14 14:33:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:33:05,866 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 14:33:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:05,866 INFO L225 Difference]: With dead ends: 22 [2022-12-14 14:33:05,866 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 14:33:05,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-12-14 14:33:05,867 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:05,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:05,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 14:33:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-14 14:33:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-14 14:33:05,870 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-12-14 14:33:05,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:05,870 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-14 14:33:05,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-14 14:33:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:33:05,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:05,871 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-12-14 14:33:05,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 14:33:06,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 14:33:06,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 14:33:06,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:06,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:33:06,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-12-14 14:33:06,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:33:06,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692923648] [2022-12-14 14:33:06,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:33:06,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:33:06,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:33:06,479 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:33:06,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 14:33:06,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-14 14:33:06,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:06,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 123 conjunts are in the unsatisfiable core [2022-12-14 14:33:06,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:07,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:13,301 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:33:13,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692923648] [2022-12-14 14:33:13,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692923648] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:13,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [667052476] [2022-12-14 14:33:13,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:33:13,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:33:13,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:33:13,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:33:13,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-12-14 14:33:13,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-14 14:33:13,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:13,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 102 conjunts are in the unsatisfiable core [2022-12-14 14:33:13,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:14,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:16,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [667052476] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:16,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412068807] [2022-12-14 14:33:16,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:33:16,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:16,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:16,888 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:16,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 14:33:17,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-14 14:33:17,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:17,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-14 14:33:17,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:17,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:19,269 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:19,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412068807] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:19,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:33:19,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 8, 8, 9, 9] total 30 [2022-12-14 14:33:19,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320180304] [2022-12-14 14:33:19,270 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:33:19,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 14:33:19,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:33:19,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 14:33:19,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:33:19,273 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:19,407 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-12-14 14:33:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:33:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 14:33:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:19,408 INFO L225 Difference]: With dead ends: 18 [2022-12-14 14:33:19,408 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:33:19,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 62 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 14:33:19,409 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:19,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:33:19,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:33:19,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:33:19,410 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) [2022-12-14 14:33:19,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:33:19,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-12-14 14:33:19,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:19,410 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:33:19,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:33:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:33:19,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:33:19,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:33:19,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 14:33:19,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 14:33:19,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-12-14 14:33:20,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:33:20,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:33:20,102 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:33:20,102 INFO L895 garLoopResultBuilder]: At program point L91-2(lines 91 224) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_57~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_27~0#1|)) (.cse3 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse4 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_42~0#1|)) (.cse5 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~state_42~0#1| |ULTIMATE.start_main_~state_14~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_25~0#1|) .cse3 .cse4 .cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|)) (and .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_14~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) (= ((_ extract 7 0) (let ((.cse6 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_7~0#1|))) .cse6))))) .cse6))))) .cse6))) |ULTIMATE.start_main_~state_61~0#1|) .cse3 .cse4 .cse5))) [2022-12-14 14:33:20,102 INFO L899 garLoopResultBuilder]: For program point L91-3(lines 91 224) no Hoare annotation was computed. [2022-12-14 14:33:20,102 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:33:20,102 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 226) the Hoare annotation is: false [2022-12-14 14:33:20,102 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 14:33:20,103 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 14:33:20,103 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 14:33:20,103 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 14:33:20,103 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 14:33:20,103 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 14:33:20,105 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-12-14 14:33:20,107 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:33:20,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:33:20 BoogieIcfgContainer [2022-12-14 14:33:20,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:33:20,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:33:20,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:33:20,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:33:20,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:32:59" (3/4) ... [2022-12-14 14:33:20,119 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:33:20,127 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 14:33:20,127 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:33:20,127 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:33:20,158 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:33:20,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:33:20,159 INFO L158 Benchmark]: Toolchain (without parser) took 21336.46ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 39.6MB in the beginning and 36.0MB in the end (delta: 3.5MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2022-12-14 14:33:20,159 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 28.9MB in the beginning and 28.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:33:20,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.14ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 40.5MB in the end (delta: -1.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:33:20,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.34ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 37.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:33:20,159 INFO L158 Benchmark]: Boogie Preprocessor took 29.59ms. Allocated memory is still 60.8MB. Free memory was 37.9MB in the beginning and 36.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:33:20,160 INFO L158 Benchmark]: RCFGBuilder took 370.47ms. Allocated memory is still 60.8MB. Free memory was 36.1MB in the beginning and 33.1MB in the end (delta: 3.1MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-12-14 14:33:20,160 INFO L158 Benchmark]: TraceAbstraction took 20593.60ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 32.3MB in the beginning and 40.2MB in the end (delta: -7.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-12-14 14:33:20,160 INFO L158 Benchmark]: Witness Printer took 41.71ms. Allocated memory is still 130.0MB. Free memory was 40.2MB in the beginning and 36.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:33:20,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 28.9MB in the beginning and 28.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.14ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 40.5MB in the end (delta: -1.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.34ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 37.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.59ms. Allocated memory is still 60.8MB. Free memory was 37.9MB in the beginning and 36.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 370.47ms. Allocated memory is still 60.8MB. Free memory was 36.1MB in the beginning and 33.1MB in the end (delta: 3.1MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 20593.60ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 32.3MB in the beginning and 40.2MB in the end (delta: -7.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 41.71ms. Allocated memory is still 130.0MB. Free memory was 40.2MB in the beginning and 36.0MB in the end (delta: 4.2MB). 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: 20]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.5s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 15 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 134 SyntacticMatches, 13 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 85 HoareAnnotationTreeSize, 2 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 177 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 16.3s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 202 ConstructedInterpolants, 73 QuantifiedInterpolants, 9602 SizeOfPredicates, 579 NumberOfNonLiveVariables, 3311 ConjunctsInSsa, 579 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 0/210 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: 91]: Loop Invariant Derived loop invariant: (((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && state_42 == state_14) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_7 == state_42) && var_12 == 0bv32) && 0bv8 == state_14) || (((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && cond == 1bv32) && var_7 == state_27) && var_7 == state_14) && var_7 == 0bv8) && ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(var_7)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0])[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0])[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_61) && 1bv8 == var_21) && var_7 == state_42) && var_12 == 0bv32) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:33:20,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b75b24a7-7267-4a78-a86a-b43d071369ed/bin/utaipan-gh47qXpMRh/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