./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/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_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/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 32bit --witnessprinter.graph.data.programhash 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a --- 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 03:08:52,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:08:52,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:08:52,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:08:52,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:08:52,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:08:52,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:08:52,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:08:52,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:08:52,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:08:52,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:08:52,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:08:52,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:08:52,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:08:52,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:08:52,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:08:52,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:08:52,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:08:52,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:08:52,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:08:52,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:08:52,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:08:52,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:08:52,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:08:52,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:08:52,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:08:52,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:08:52,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:08:52,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:08:52,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:08:52,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:08:52,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:08:52,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:08:52,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:08:52,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:08:52,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:08:52,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:08:52,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:08:52,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:08:52,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:08:52,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:08:52,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 03:08:52,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:08:52,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:08:52,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:08:52,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:08:52,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:08:52,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:08:52,266 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:08:52,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:08:52,267 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:08:52,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:08:52,267 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:08:52,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:08:52,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:08:52,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:08:52,268 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:08:52,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:08:52,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:08:52,268 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:08:52,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:08:52,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:08:52,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:08:52,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:08:52,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:08:52,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:08:52,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:08:52,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:08:52,270 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:08:52,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:08:52,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:08:52,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:08:52,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:08:52,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:08:52,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:08:52,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:08:52,272 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:08:52,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:08:52,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:08:52,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:08:52,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:08:52,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:08:52,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:08:52,273 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_a2282e14-7e13-4c0c-9815-1beebccd81ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a [2022-12-14 03:08:52,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:08:52,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:08:52,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:08:52,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:08:52,477 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:08:52,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2022-12-14 03:08:55,051 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:08:55,165 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:08:55,165 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2022-12-14 03:08:55,170 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/data/258d9cdf6/d3379a1f06cc42638bb04e5781e0063a/FLAG6d21f0b42 [2022-12-14 03:08:55,179 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/data/258d9cdf6/d3379a1f06cc42638bb04e5781e0063a [2022-12-14 03:08:55,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:08:55,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:08:55,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:08:55,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:08:55,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:08:55,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f69751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55, skipping insertion in model container [2022-12-14 03:08:55,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:08:55,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:08:55,301 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_a2282e14-7e13-4c0c-9815-1beebccd81ea/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2022-12-14 03:08:55,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:08:55,317 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:08:55,325 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_a2282e14-7e13-4c0c-9815-1beebccd81ea/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2022-12-14 03:08:55,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:08:55,338 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:08:55,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55 WrapperNode [2022-12-14 03:08:55,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:08:55,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:08:55,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:08:55,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:08:55,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,361 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-12-14 03:08:55,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:08:55,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:08:55,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:08:55,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:08:55,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:08:55,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:08:55,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:08:55,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:08:55,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (1/1) ... [2022-12-14 03:08:55,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:08:55,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:55,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:08:55,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:08:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:08:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:08:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:08:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:08:55,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 03:08:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 03:08:55,475 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:08:55,476 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:08:55,580 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:08:55,610 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:08:55,610 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 03:08:55,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:08:55 BoogieIcfgContainer [2022-12-14 03:08:55,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:08:55,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:08:55,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:08:55,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:08:55,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:08:55" (1/3) ... [2022-12-14 03:08:55,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ddad68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:08:55, skipping insertion in model container [2022-12-14 03:08:55,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:08:55" (2/3) ... [2022-12-14 03:08:55,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ddad68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:08:55, skipping insertion in model container [2022-12-14 03:08:55,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:08:55" (3/3) ... [2022-12-14 03:08:55,618 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin2_valuebound1.i [2022-12-14 03:08:55,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:08:55,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 03:08:55,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:08:55,673 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;@719d1f54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:08:55,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 03:08:55,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:08:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 03:08:55,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:08:55,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:08:55,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:08:55,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:08:55,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1881233236, now seen corresponding path program 1 times [2022-12-14 03:08:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:08:55,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811186461] [2022-12-14 03:08:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:55,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:08:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:55,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:08:55,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811186461] [2022-12-14 03:08:55,779 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 03:08:55,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218019197] [2022-12-14 03:08:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:55,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:55,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:55,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:08:55,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:08:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:55,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 03:08:55,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:55,847 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 03:08:55,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:08:55,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218019197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:08:55,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:08:55,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:08:55,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074944056] [2022-12-14 03:08:55,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:08:55,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:08:55,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:08:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:08:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:08:55,877 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:08:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:08:55,903 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2022-12-14 03:08:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:08:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 03:08:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:08:55,911 INFO L225 Difference]: With dead ends: 27 [2022-12-14 03:08:55,911 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 03:08:55,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:08:55,915 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:08:55,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:08:55,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 03:08:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 03:08:55,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:08:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-12-14 03:08:55,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2022-12-14 03:08:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:08:55,948 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-14 03:08:55,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:08:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 03:08:55,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 03:08:55,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:08:55,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:08:55,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:08:56,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 03:08:56,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:08:56,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:08:56,152 INFO L85 PathProgramCache]: Analyzing trace with hash -515868340, now seen corresponding path program 1 times [2022-12-14 03:08:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:08:56,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258138166] [2022-12-14 03:08:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:08:56,169 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:08:56,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589464656] [2022-12-14 03:08:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:56,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:56,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:56,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:08:56,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 03:08:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:56,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 03:08:56,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:56,350 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 03:08:56,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:08:56,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:08:56,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258138166] [2022-12-14 03:08:56,351 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:08:56,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589464656] [2022-12-14 03:08:56,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589464656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:08:56,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:08:56,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:08:56,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280979193] [2022-12-14 03:08:56,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:08:56,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:08:56,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:08:56,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:08:56,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:08:56,354 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:08:56,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:08:56,411 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-12-14 03:08:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:08:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 03:08:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:08:56,412 INFO L225 Difference]: With dead ends: 25 [2022-12-14 03:08:56,412 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 03:08:56,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:08:56,413 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:08:56,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 32 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:08:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 03:08:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 03:08:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:08:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-14 03:08:56,419 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 8 [2022-12-14 03:08:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:08:56,425 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-14 03:08:56,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:08:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-14 03:08:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 03:08:56,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:08:56,428 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:08:56,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 03:08:56,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:56,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:08:56,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:08:56,632 INFO L85 PathProgramCache]: Analyzing trace with hash -965242393, now seen corresponding path program 1 times [2022-12-14 03:08:56,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:08:56,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184540512] [2022-12-14 03:08:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:56,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:08:56,666 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:08:56,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857724669] [2022-12-14 03:08:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:56,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:56,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:56,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:08:56,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 03:08:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:56,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 03:08:56,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:56,923 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 03:08:56,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:08:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:08:57,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:08:57,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184540512] [2022-12-14 03:08:57,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:08:57,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857724669] [2022-12-14 03:08:57,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857724669] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 03:08:57,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:08:57,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-12-14 03:08:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109074468] [2022-12-14 03:08:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:08:57,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:08:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:08:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:08:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-14 03:08:57,080 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:08:59,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-12-14 03:08:59,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:08:59,170 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-12-14 03:08:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:08:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 03:08:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:08:59,171 INFO L225 Difference]: With dead ends: 32 [2022-12-14 03:08:59,171 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 03:08:59,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:08:59,173 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:08:59,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 03:08:59,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 03:08:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2022-12-14 03:08:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:08:59,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-12-14 03:08:59,180 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2022-12-14 03:08:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:08:59,180 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-12-14 03:08:59,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:08:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-12-14 03:08:59,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 03:08:59,181 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:08:59,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:08:59,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 03:08:59,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:59,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:08:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:08:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash -969972797, now seen corresponding path program 1 times [2022-12-14 03:08:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:08:59,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727008217] [2022-12-14 03:08:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:08:59,413 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:08:59,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525531442] [2022-12-14 03:08:59,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:59,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:59,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:59,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:08:59,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 03:08:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:59,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 03:08:59,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:59,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:08:59,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:08:59,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:08:59,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727008217] [2022-12-14 03:08:59,480 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:08:59,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525531442] [2022-12-14 03:08:59,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525531442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:08:59,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:08:59,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:08:59,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949621217] [2022-12-14 03:08:59,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:08:59,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:08:59,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:08:59,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:08:59,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:08:59,482 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:08:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:08:59,505 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-12-14 03:08:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:08:59,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 03:08:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:08:59,506 INFO L225 Difference]: With dead ends: 35 [2022-12-14 03:08:59,506 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 03:08:59,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:08:59,508 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:08:59,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:08:59,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 03:08:59,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 03:08:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:08:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-12-14 03:08:59,514 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2022-12-14 03:08:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:08:59,514 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-12-14 03:08:59,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 03:08:59,514 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-12-14 03:08:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 03:08:59,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:08:59,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:08:59,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 03:08:59,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:59,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:08:59,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:08:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -425494840, now seen corresponding path program 1 times [2022-12-14 03:08:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:08:59,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658296751] [2022-12-14 03:08:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:59,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:08:59,729 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:08:59,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983000017] [2022-12-14 03:08:59,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:59,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:59,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:59,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:08:59,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 03:08:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:59,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 03:08:59,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:08:59,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:09:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:09:00,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:09:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658296751] [2022-12-14 03:09:00,585 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:09:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983000017] [2022-12-14 03:09:00,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983000017] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 03:09:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1506714176] [2022-12-14 03:09:00,603 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 03:09:00,604 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 03:09:00,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 03:09:00,612 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 03:09:00,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 03:09:01,828 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 25 for LOIs [2022-12-14 03:09:01,848 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 03:09:03,161 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '564#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 03:09:03,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 03:09:03,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 03:09:03,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-14 03:09:03,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292211598] [2022-12-14 03:09:03,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 03:09:03,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 03:09:03,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:09:03,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 03:09:03,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-12-14 03:09:03,164 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 12 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:09:15,091 WARN L233 SmtUtils]: Spent 11.87s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 03:09:17,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:19,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:21,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:33,908 WARN L233 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 03:09:35,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:37,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:44,550 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 03:09:46,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:48,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:51,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:53,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:54,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:57,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:09:59,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:10:02,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 03:10:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:10:02,787 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2022-12-14 03:10:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:10:02,788 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 12 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-12-14 03:10:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:10:02,789 INFO L225 Difference]: With dead ends: 59 [2022-12-14 03:10:02,789 INFO L226 Difference]: Without dead ends: 55 [2022-12-14 03:10:02,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2022-12-14 03:10:02,790 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 21 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:10:02,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 78 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 130 Invalid, 8 Unknown, 0 Unchecked, 28.6s Time] [2022-12-14 03:10:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-14 03:10:02,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2022-12-14 03:10:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.1875) internal successors, (38), 35 states have internal predecessors, (38), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 03:10:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-12-14 03:10:02,804 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 17 [2022-12-14 03:10:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:10:02,804 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-12-14 03:10:02,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 12 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 03:10:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-12-14 03:10:02,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 03:10:02,806 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:10:02,806 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 03:10:02,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 03:10:03,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:10:03,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:10:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:10:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash 687309511, now seen corresponding path program 2 times [2022-12-14 03:10:03,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:10:03,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619736438] [2022-12-14 03:10:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:10:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:10:03,014 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:10:03,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153545659] [2022-12-14 03:10:03,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 03:10:03,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:10:03,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:10:03,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:10:03,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2282e14-7e13-4c0c-9815-1beebccd81ea/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process