./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG --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 122c2109cd6c748bfe3dba05eb9f0b8ecb68be5fd41688cb81634cb3c05e5766 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:26:47,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:26:47,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:26:47,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:26:47,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:26:47,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:26:47,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:26:47,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:26:47,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:26:47,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:26:47,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:26:47,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:26:47,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:26:47,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:26:47,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:26:47,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:26:47,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:26:47,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:26:47,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:26:47,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:26:47,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:26:47,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:26:47,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:26:47,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:26:47,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:26:47,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:26:47,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:26:47,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:26:47,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:26:47,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:26:47,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:26:47,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:26:47,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:26:47,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:26:47,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:26:47,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:26:47,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:26:47,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:26:47,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:26:47,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:26:47,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:26:47,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:26:47,291 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:26:47,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:26:47,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:26:47,293 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:26:47,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:26:47,294 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:26:47,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:26:47,294 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:26:47,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:26:47,295 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:26:47,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:26:47,295 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:26:47,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:26:47,296 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:26:47,296 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:26:47,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:26:47,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:26:47,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:26:47,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:26:47,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:26:47,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:26:47,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:26:47,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:26:47,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:26:47,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:26:47,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:26:47,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:26:47,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:26:47,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:26:47,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:26:47,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:26:47,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:26:47,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:26:47,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:26:47,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:26:47,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:26:47,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:26:47,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:26:47,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:26:47,304 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 122c2109cd6c748bfe3dba05eb9f0b8ecb68be5fd41688cb81634cb3c05e5766 [2021-10-29 05:26:47,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:26:47,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:26:47,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:26:47,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:26:47,621 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:26:47,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/openssl-simplified/s3_srvr_11.cil.c [2021-10-29 05:26:47,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/data/f3c0506a5/1b6a5653bb5e4e41813c1005a2afd278/FLAGe455303a0 [2021-10-29 05:26:48,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:26:48,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/sv-benchmarks/c/openssl-simplified/s3_srvr_11.cil.c [2021-10-29 05:26:48,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/data/f3c0506a5/1b6a5653bb5e4e41813c1005a2afd278/FLAGe455303a0 [2021-10-29 05:26:48,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/data/f3c0506a5/1b6a5653bb5e4e41813c1005a2afd278 [2021-10-29 05:26:48,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:26:48,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:26:48,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:26:48,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:26:48,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:26:48,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:26:48" (1/1) ... [2021-10-29 05:26:48,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b87ac0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:48, skipping insertion in model container [2021-10-29 05:26:48,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:26:48" (1/1) ... [2021-10-29 05:26:48,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:26:48,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:26:49,046 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/sv-benchmarks/c/openssl-simplified/s3_srvr_11.cil.c[43646,43659] [2021-10-29 05:26:49,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:26:49,065 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:26:49,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/sv-benchmarks/c/openssl-simplified/s3_srvr_11.cil.c[43646,43659] [2021-10-29 05:26:49,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:26:49,201 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:26:49,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49 WrapperNode [2021-10-29 05:26:49,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:26:49,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:26:49,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:26:49,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:26:49,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:26:49,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:26:49,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:26:49,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:26:49,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:26:49,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:26:49,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:26:49,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:26:49,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (1/1) ... [2021-10-29 05:26:49,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:26:49,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:26:49,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:26:49,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:26:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:26:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:26:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:26:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:26:49,695 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:26:50,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-29 05:26:50,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-29 05:26:50,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:26:50,872 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 05:26:50,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:26:50 BoogieIcfgContainer [2021-10-29 05:26:50,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:26:50,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:26:50,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:26:50,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:26:50,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:26:48" (1/3) ... [2021-10-29 05:26:50,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552865b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:26:50, skipping insertion in model container [2021-10-29 05:26:50,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:26:49" (2/3) ... [2021-10-29 05:26:50,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552865b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:26:50, skipping insertion in model container [2021-10-29 05:26:50,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:26:50" (3/3) ... [2021-10-29 05:26:50,890 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_11.cil.c [2021-10-29 05:26:50,900 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:26:50,900 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:26:50,965 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:26:50,973 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:26:50,973 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:26:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 112 states have (on average 1.7857142857142858) internal successors, (200), 113 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:26:51,001 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:26:51,001 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:26:51,002 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:26:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:26:51,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1924020503, now seen corresponding path program 1 times [2021-10-29 05:26:51,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:26:51,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320443190] [2021-10-29 05:26:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:26:51,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:26:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:26:51,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:26:51,250 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:26:51,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320443190] [2021-10-29 05:26:51,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320443190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:26:51,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:26:51,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:26:51,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170886937] [2021-10-29 05:26:51,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:26:51,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:26:51,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:26:51,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:26:51,293 INFO L87 Difference]: Start difference. First operand has 114 states, 112 states have (on average 1.7857142857142858) internal successors, (200), 113 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:26:51,511 INFO L93 Difference]: Finished difference Result 249 states and 436 transitions. [2021-10-29 05:26:51,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:26:51,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:26:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:26:51,526 INFO L225 Difference]: With dead ends: 249 [2021-10-29 05:26:51,526 INFO L226 Difference]: Without dead ends: 131 [2021-10-29 05:26:51,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:26:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-29 05:26:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-10-29 05:26:51,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.5078125) internal successors, (193), 128 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 193 transitions. [2021-10-29 05:26:51,580 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 193 transitions. Word has length 19 [2021-10-29 05:26:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:26:51,580 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 193 transitions. [2021-10-29 05:26:51,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 193 transitions. [2021-10-29 05:26:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:26:51,582 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:26:51,583 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:26:51,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:26:51,583 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:26:51,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:26:51,584 INFO L85 PathProgramCache]: Analyzing trace with hash 313171778, now seen corresponding path program 1 times [2021-10-29 05:26:51,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:26:51,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706108823] [2021-10-29 05:26:51,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:26:51,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:26:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:26:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:26:51,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:26:51,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706108823] [2021-10-29 05:26:51,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706108823] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:26:51,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:26:51,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:26:51,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586960063] [2021-10-29 05:26:51,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:26:51,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:26:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:26:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:26:51,685 INFO L87 Difference]: Start difference. First operand 129 states and 193 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:26:51,851 INFO L93 Difference]: Finished difference Result 268 states and 400 transitions. [2021-10-29 05:26:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:26:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-29 05:26:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:26:51,853 INFO L225 Difference]: With dead ends: 268 [2021-10-29 05:26:51,854 INFO L226 Difference]: Without dead ends: 141 [2021-10-29 05:26:51,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:26:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-29 05:26:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2021-10-29 05:26:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.5) internal successors, (204), 136 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 204 transitions. [2021-10-29 05:26:51,868 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 204 transitions. Word has length 24 [2021-10-29 05:26:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:26:51,868 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 204 transitions. [2021-10-29 05:26:51,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 204 transitions. [2021-10-29 05:26:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:26:51,870 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:26:51,870 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:26:51,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:26:51,871 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:26:51,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:26:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1945736093, now seen corresponding path program 1 times [2021-10-29 05:26:51,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:26:51,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731392305] [2021-10-29 05:26:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:26:51,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:26:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:26:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:26:51,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:26:51,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731392305] [2021-10-29 05:26:51,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731392305] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:26:51,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:26:51,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:26:51,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188948434] [2021-10-29 05:26:51,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:26:51,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:26:51,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:26:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:26:51,940 INFO L87 Difference]: Start difference. First operand 137 states and 204 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:26:52,124 INFO L93 Difference]: Finished difference Result 325 states and 499 transitions. [2021-10-29 05:26:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:26:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-10-29 05:26:52,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:26:52,127 INFO L225 Difference]: With dead ends: 325 [2021-10-29 05:26:52,127 INFO L226 Difference]: Without dead ends: 178 [2021-10-29 05:26:52,128 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:26:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-29 05:26:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2021-10-29 05:26:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.471264367816092) internal successors, (256), 174 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 256 transitions. [2021-10-29 05:26:52,142 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 256 transitions. Word has length 34 [2021-10-29 05:26:52,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:26:52,143 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 256 transitions. [2021-10-29 05:26:52,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:26:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 256 transitions. [2021-10-29 05:26:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-29 05:26:52,145 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:26:52,145 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:26:52,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:26:52,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:26:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:26:52,147 INFO L85 PathProgramCache]: Analyzing trace with hash -732443533, now seen corresponding path program 1 times [2021-10-29 05:26:52,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:26:52,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243523362] [2021-10-29 05:26:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:26:52,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:26:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:26:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:26:52,221 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:26:52,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243523362] [2021-10-29 05:26:52,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243523362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:26:52,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454466857] [2021-10-29 05:26:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:26:52,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:26:52,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:26:52,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:26:52,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:26:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:26:52,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:26:52,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:26:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:26:52,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:26:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:26:52,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454466857] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:26:52,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [540442568] [2021-10-29 05:26:52,678 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-10-29 05:26:52,678 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:26:52,683 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:26:52,690 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:26:52,691 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:26:52,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:52,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:26:52,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:52,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:26:52,808 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:26:52,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:52,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:26:52,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-10-29 05:26:52,879 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 21=[|v_#valid_22|]} [2021-10-29 05:26:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:52,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:52,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:26:52,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:52,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:26:52,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:52,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:26:52,938 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:26:52,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:52,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:52,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:26:52,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:26:53,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:26:53,002 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:26:53,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:26:53,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:26:53,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:26:53,053 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:26:53,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:53,323 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:26:53,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:26:53,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:26:53,406 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-29 05:26:53,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:26:53,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:26:53,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:26:53,489 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-29 05:26:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:26:53,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:26:53,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:26:53,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:26:53,556 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-29 05:26:53,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:53,730 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:53,834 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.3 percent of original size [2021-10-29 05:26:53,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1044 [2021-10-29 05:26:53,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-29 05:26:53,892 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:1137, output treesize:1044 [2021-10-29 05:26:53,986 INFO L180 QuantifierPusher]: treesize reduction 32, result has 97.1 percent of original size [2021-10-29 05:26:53,995 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:26:54,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:54,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1029 [2021-10-29 05:26:54,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2081 [2021-10-29 05:26:54,516 INFO L180 QuantifierPusher]: treesize reduction 6, result has 99.7 percent of original size [2021-10-29 05:26:54,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2067 [2021-10-29 05:26:54,878 INFO L180 QuantifierPusher]: treesize reduction 4, result has 99.8 percent of original size [2021-10-29 05:26:54,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2056 [2021-10-29 05:26:55,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:55,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2056 [2021-10-29 05:26:55,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:55,703 INFO L180 QuantifierPusher]: treesize reduction 51, result has 86.9 percent of original size [2021-10-29 05:26:55,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-10-29 05:26:55,747 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.2 percent of original size [2021-10-29 05:26:55,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-29 05:26:55,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:55,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-29 05:26:55,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:55,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 326 [2021-10-29 05:26:55,856 INFO L180 QuantifierPusher]: treesize reduction 63, result has 84.6 percent of original size [2021-10-29 05:26:55,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-10-29 05:26:55,894 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.3 percent of original size [2021-10-29 05:26:55,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-10-29 05:26:55,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:55,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-10-29 05:26:55,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:55,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-10-29 05:26:56,011 INFO L180 QuantifierPusher]: treesize reduction 32, result has 92.2 percent of original size [2021-10-29 05:26:56,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 360 [2021-10-29 05:26:56,051 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.4 percent of original size [2021-10-29 05:26:56,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 358 [2021-10-29 05:26:56,085 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-10-29 05:26:56,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 358 [2021-10-29 05:26:56,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:56,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:26:56,152 INFO L180 QuantifierPusher]: treesize reduction 63, result has 84.6 percent of original size [2021-10-29 05:26:56,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-10-29 05:26:56,195 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.3 percent of original size [2021-10-29 05:26:56,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-10-29 05:26:56,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:56,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-10-29 05:26:56,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:56,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-10-29 05:26:56,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:56,886 INFO L180 QuantifierPusher]: treesize reduction 32, result has 92.2 percent of original size [2021-10-29 05:26:56,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 360 [2021-10-29 05:26:56,934 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.4 percent of original size [2021-10-29 05:26:56,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:26:56,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,590 INFO L180 QuantifierPusher]: treesize reduction 51, result has 86.9 percent of original size [2021-10-29 05:26:57,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-10-29 05:26:57,625 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.2 percent of original size [2021-10-29 05:26:57,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-29 05:26:57,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:57,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,504 INFO L180 QuantifierPusher]: treesize reduction 54, result has 85.6 percent of original size [2021-10-29 05:26:58,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-10-29 05:26:58,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:58,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:26:58,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-10-29 05:26:58,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:26:59,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:00,052 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:27:24,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:27:24,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 05:27:24,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-10-29 05:27:24,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870430966] [2021-10-29 05:27:24,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:27:24,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:27:24,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2021-10-29 05:27:24,889 INFO L87 Difference]: Start difference. First operand 175 states and 256 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:25,324 INFO L93 Difference]: Finished difference Result 510 states and 754 transitions. [2021-10-29 05:27:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:27:25,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 42 [2021-10-29 05:27:25,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:25,326 INFO L225 Difference]: With dead ends: 510 [2021-10-29 05:27:25,327 INFO L226 Difference]: Without dead ends: 325 [2021-10-29 05:27:25,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 94 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=217, Invalid=775, Unknown=0, NotChecked=0, Total=992 [2021-10-29 05:27:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-10-29 05:27:25,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 262. [2021-10-29 05:27:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 1.4865900383141764) internal successors, (388), 261 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 388 transitions. [2021-10-29 05:27:25,347 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 388 transitions. Word has length 42 [2021-10-29 05:27:25,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:25,348 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 388 transitions. [2021-10-29 05:27:25,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 388 transitions. [2021-10-29 05:27:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-29 05:27:25,352 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:25,352 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:25,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:27:25,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:27:25,565 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:25,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1248825500, now seen corresponding path program 2 times [2021-10-29 05:27:25,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:25,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757390887] [2021-10-29 05:27:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:25,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 05:27:25,666 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:25,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757390887] [2021-10-29 05:27:25,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757390887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:25,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:25,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:27:25,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610551506] [2021-10-29 05:27:25,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:27:25,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:25,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:27:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:27:25,669 INFO L87 Difference]: Start difference. First operand 262 states and 388 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:25,826 INFO L93 Difference]: Finished difference Result 593 states and 876 transitions. [2021-10-29 05:27:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:27:25,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 60 [2021-10-29 05:27:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:25,830 INFO L225 Difference]: With dead ends: 593 [2021-10-29 05:27:25,830 INFO L226 Difference]: Without dead ends: 333 [2021-10-29 05:27:25,831 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:27:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-10-29 05:27:25,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 248. [2021-10-29 05:27:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.5060728744939271) internal successors, (372), 247 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 372 transitions. [2021-10-29 05:27:25,846 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 372 transitions. Word has length 60 [2021-10-29 05:27:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:25,847 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 372 transitions. [2021-10-29 05:27:25,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 372 transitions. [2021-10-29 05:27:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-29 05:27:25,851 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:25,851 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:25,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-10-29 05:27:25,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:25,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash 40167431, now seen corresponding path program 1 times [2021-10-29 05:27:25,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:25,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001229933] [2021-10-29 05:27:25,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:25,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 05:27:25,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:25,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001229933] [2021-10-29 05:27:25,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001229933] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:25,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:25,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:27:25,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897122860] [2021-10-29 05:27:25,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:27:25,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:27:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:27:25,921 INFO L87 Difference]: Start difference. First operand 248 states and 372 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:26,081 INFO L93 Difference]: Finished difference Result 522 states and 779 transitions. [2021-10-29 05:27:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:27:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-10-29 05:27:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:26,085 INFO L225 Difference]: With dead ends: 522 [2021-10-29 05:27:26,085 INFO L226 Difference]: Without dead ends: 276 [2021-10-29 05:27:26,086 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:27:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-10-29 05:27:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 246. [2021-10-29 05:27:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.510204081632653) internal successors, (370), 245 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2021-10-29 05:27:26,105 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 61 [2021-10-29 05:27:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:26,105 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2021-10-29 05:27:26,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2021-10-29 05:27:26,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-29 05:27:26,110 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:26,110 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:26,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-10-29 05:27:26,111 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:26,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2115927093, now seen corresponding path program 1 times [2021-10-29 05:27:26,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:26,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338270871] [2021-10-29 05:27:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:26,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-29 05:27:26,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:26,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338270871] [2021-10-29 05:27:26,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338270871] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:26,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:26,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:27:26,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838529959] [2021-10-29 05:27:26,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:27:26,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:26,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:27:26,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:27:26,234 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:26,434 INFO L93 Difference]: Finished difference Result 540 states and 824 transitions. [2021-10-29 05:27:26,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:27:26,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 72 [2021-10-29 05:27:26,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:26,440 INFO L225 Difference]: With dead ends: 540 [2021-10-29 05:27:26,441 INFO L226 Difference]: Without dead ends: 296 [2021-10-29 05:27:26,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:27:26,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-10-29 05:27:26,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 285. [2021-10-29 05:27:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.454225352112676) internal successors, (413), 284 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 413 transitions. [2021-10-29 05:27:26,455 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 413 transitions. Word has length 72 [2021-10-29 05:27:26,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:26,456 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 413 transitions. [2021-10-29 05:27:26,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 413 transitions. [2021-10-29 05:27:26,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-29 05:27:26,459 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:26,460 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:26,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-10-29 05:27:26,460 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:26,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1991705938, now seen corresponding path program 1 times [2021-10-29 05:27:26,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:26,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996339754] [2021-10-29 05:27:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:26,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-29 05:27:26,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:26,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996339754] [2021-10-29 05:27:26,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996339754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:26,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:26,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:27:26,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21994987] [2021-10-29 05:27:26,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:27:26,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:27:26,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:27:26,546 INFO L87 Difference]: Start difference. First operand 285 states and 413 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:26,717 INFO L93 Difference]: Finished difference Result 613 states and 906 transitions. [2021-10-29 05:27:26,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:27:26,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 81 [2021-10-29 05:27:26,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:26,721 INFO L225 Difference]: With dead ends: 613 [2021-10-29 05:27:26,722 INFO L226 Difference]: Without dead ends: 330 [2021-10-29 05:27:26,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:27:26,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-10-29 05:27:26,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 326. [2021-10-29 05:27:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.4184615384615384) internal successors, (461), 325 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 461 transitions. [2021-10-29 05:27:26,736 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 461 transitions. Word has length 81 [2021-10-29 05:27:26,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:26,738 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 461 transitions. [2021-10-29 05:27:26,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 461 transitions. [2021-10-29 05:27:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-29 05:27:26,741 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:26,741 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:26,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-10-29 05:27:26,741 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:26,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1622959562, now seen corresponding path program 1 times [2021-10-29 05:27:26,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:26,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577889482] [2021-10-29 05:27:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:26,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-29 05:27:26,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:26,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577889482] [2021-10-29 05:27:26,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577889482] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:26,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:26,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:27:26,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630609052] [2021-10-29 05:27:26,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:27:26,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:27:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:27:26,802 INFO L87 Difference]: Start difference. First operand 326 states and 461 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:26,942 INFO L93 Difference]: Finished difference Result 672 states and 954 transitions. [2021-10-29 05:27:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:27:26,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-10-29 05:27:26,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:26,945 INFO L225 Difference]: With dead ends: 672 [2021-10-29 05:27:26,945 INFO L226 Difference]: Without dead ends: 348 [2021-10-29 05:27:26,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:27:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-10-29 05:27:26,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2021-10-29 05:27:26,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.4028985507246376) internal successors, (484), 345 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 484 transitions. [2021-10-29 05:27:26,959 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 484 transitions. Word has length 82 [2021-10-29 05:27:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:26,960 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 484 transitions. [2021-10-29 05:27:26,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:27:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 484 transitions. [2021-10-29 05:27:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-29 05:27:26,962 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:26,963 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:26,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-10-29 05:27:26,963 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:26,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:26,964 INFO L85 PathProgramCache]: Analyzing trace with hash 378874986, now seen corresponding path program 1 times [2021-10-29 05:27:26,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:26,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625502667] [2021-10-29 05:27:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:26,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:27,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:27,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625502667] [2021-10-29 05:27:27,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625502667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:27:27,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751524996] [2021-10-29 05:27:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:27,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:27:27,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:27:27,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:27:27,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 05:27:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:27,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:27:27,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:27:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:27,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:27:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-29 05:27:28,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751524996] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:27:28,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1164296323] [2021-10-29 05:27:28,104 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2021-10-29 05:27:28,104 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:27:28,105 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:27:28,106 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:27:28,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:27:28,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:27:28,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:27:28,203 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:27:28,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:27:28,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-10-29 05:27:28,234 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_23|]} [2021-10-29 05:27:28,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:27:28,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:27:28,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:27:28,265 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:27:28,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:27:28,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:27:28,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:27:28,301 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:27:28,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:27:28,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:27:28,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:27:28,340 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:27:28,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:28,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:27:28,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:27:28,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:27:28,507 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-29 05:27:28,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:27:28,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:27:28,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:27:28,561 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-29 05:27:28,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:27:28,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:27:28,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:27:28,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:27:28,602 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-29 05:27:28,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:28,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,753 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.3 percent of original size [2021-10-29 05:27:28,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1044 [2021-10-29 05:27:28,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-29 05:27:28,795 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:1137, output treesize:1044 [2021-10-29 05:27:28,869 INFO L180 QuantifierPusher]: treesize reduction 44, result has 96.1 percent of original size [2021-10-29 05:27:28,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:27:28,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:28,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1029 [2021-10-29 05:27:28,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1048 [2021-10-29 05:27:29,020 INFO L180 QuantifierPusher]: treesize reduction 6, result has 99.4 percent of original size [2021-10-29 05:27:29,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1062 [2021-10-29 05:27:29,107 INFO L180 QuantifierPusher]: treesize reduction 32, result has 97.1 percent of original size [2021-10-29 05:27:29,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:27:29,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:29,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1029 [2021-10-29 05:27:29,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1051 [2021-10-29 05:27:29,251 INFO L180 QuantifierPusher]: treesize reduction 6, result has 99.4 percent of original size [2021-10-29 05:27:29,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1046 [2021-10-29 05:27:29,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,640 INFO L180 QuantifierPusher]: treesize reduction 58, result has 85.3 percent of original size [2021-10-29 05:27:29,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-29 05:27:29,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:29,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-29 05:27:29,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:29,918 INFO L180 QuantifierPusher]: treesize reduction 63, result has 84.6 percent of original size [2021-10-29 05:27:29,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-10-29 05:27:29,947 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.3 percent of original size [2021-10-29 05:27:29,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-10-29 05:27:29,975 INFO L180 QuantifierPusher]: treesize reduction 51, result has 86.9 percent of original size [2021-10-29 05:27:29,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-10-29 05:27:30,010 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.2 percent of original size [2021-10-29 05:27:30,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-29 05:27:30,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,201 INFO L180 QuantifierPusher]: treesize reduction 54, result has 85.8 percent of original size [2021-10-29 05:27:30,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-10-29 05:27:30,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:30,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-10-29 05:27:30,282 INFO L180 QuantifierPusher]: treesize reduction 139, result has 71.0 percent of original size [2021-10-29 05:27:30,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-10-29 05:27:30,308 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.2 percent of original size [2021-10-29 05:27:30,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 326 [2021-10-29 05:27:30,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:30,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-29 05:27:30,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:30,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-29 05:27:30,393 INFO L180 QuantifierPusher]: treesize reduction 421, result has 0.2 percent of original size [2021-10-29 05:27:30,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:27:30,407 INFO L180 QuantifierPusher]: treesize reduction 399, result has 0.3 percent of original size [2021-10-29 05:27:30,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:27:30,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,508 INFO L180 QuantifierPusher]: treesize reduction 147, result has 68.4 percent of original size [2021-10-29 05:27:30,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 309 [2021-10-29 05:27:30,554 INFO L180 QuantifierPusher]: treesize reduction 139, result has 71.0 percent of original size [2021-10-29 05:27:30,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-10-29 05:27:30,580 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.2 percent of original size [2021-10-29 05:27:30,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 326 [2021-10-29 05:27:30,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:30,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-29 05:27:30,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:30,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-29 05:27:30,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:30,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,679 INFO L180 QuantifierPusher]: treesize reduction 421, result has 0.2 percent of original size [2021-10-29 05:27:31,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:27:31,693 INFO L180 QuantifierPusher]: treesize reduction 399, result has 0.3 percent of original size [2021-10-29 05:27:31,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:27:31,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:31,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,161 INFO L180 QuantifierPusher]: treesize reduction 63, result has 84.6 percent of original size [2021-10-29 05:27:32,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-10-29 05:27:32,207 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.3 percent of original size [2021-10-29 05:27:32,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-10-29 05:27:32,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,418 INFO L180 QuantifierPusher]: treesize reduction 51, result has 86.9 percent of original size [2021-10-29 05:27:32,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-10-29 05:27:32,447 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.2 percent of original size [2021-10-29 05:27:32,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-29 05:27:32,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:32,972 INFO L180 QuantifierPusher]: treesize reduction 54, result has 85.6 percent of original size [2021-10-29 05:27:32,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-10-29 05:27:32,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:27:33,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-10-29 05:27:33,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:33,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,275 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:28:19,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:28:19,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 05:28:19,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 3] total 7 [2021-10-29 05:28:19,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645450787] [2021-10-29 05:28:19,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:28:19,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:28:19,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:28:19,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=1942, Unknown=0, NotChecked=0, Total=2450 [2021-10-29 05:28:19,434 INFO L87 Difference]: Start difference. First operand 346 states and 484 transitions. Second operand has 8 states, 8 states have (on average 22.25) internal successors, (178), 7 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:19,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:19,544 INFO L93 Difference]: Finished difference Result 1289 states and 1828 transitions. [2021-10-29 05:28:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:28:19,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 7 states have internal predecessors, (178), 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 111 [2021-10-29 05:28:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:19,554 INFO L225 Difference]: With dead ends: 1289 [2021-10-29 05:28:19,554 INFO L226 Difference]: Without dead ends: 1287 [2021-10-29 05:28:19,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 269 SyntacticMatches, 19 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=508, Invalid=1942, Unknown=0, NotChecked=0, Total=2450 [2021-10-29 05:28:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-10-29 05:28:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 888. [2021-10-29 05:28:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 887 states have (on average 1.4430665163472378) internal successors, (1280), 887 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1280 transitions. [2021-10-29 05:28:19,591 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1280 transitions. Word has length 111 [2021-10-29 05:28:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:19,591 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 1280 transitions. [2021-10-29 05:28:19,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 7 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1280 transitions. [2021-10-29 05:28:19,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-29 05:28:19,594 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:19,594 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:19,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:28:19,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:28:19,821 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:19,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:19,821 INFO L85 PathProgramCache]: Analyzing trace with hash -592652830, now seen corresponding path program 1 times [2021-10-29 05:28:19,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:28:19,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935534579] [2021-10-29 05:28:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:19,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:28:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:28:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-29 05:28:19,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:28:19,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935534579] [2021-10-29 05:28:19,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935534579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:28:19,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:28:19,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:28:19,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357132125] [2021-10-29 05:28:19,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:28:19,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:28:19,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:28:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:19,908 INFO L87 Difference]: Start difference. First operand 888 states and 1280 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:20,061 INFO L93 Difference]: Finished difference Result 1927 states and 2807 transitions. [2021-10-29 05:28:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:28:20,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-10-29 05:28:20,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:20,070 INFO L225 Difference]: With dead ends: 1927 [2021-10-29 05:28:20,071 INFO L226 Difference]: Without dead ends: 1041 [2021-10-29 05:28:20,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:20,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-10-29 05:28:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 981. [2021-10-29 05:28:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.4224489795918367) internal successors, (1394), 980 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1394 transitions. [2021-10-29 05:28:20,113 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1394 transitions. Word has length 122 [2021-10-29 05:28:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:20,113 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 1394 transitions. [2021-10-29 05:28:20,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1394 transitions. [2021-10-29 05:28:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-10-29 05:28:20,117 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:20,117 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:20,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-10-29 05:28:20,118 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:20,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1950538777, now seen corresponding path program 1 times [2021-10-29 05:28:20,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:28:20,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432871458] [2021-10-29 05:28:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:20,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:28:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:28:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-29 05:28:20,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:28:20,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432871458] [2021-10-29 05:28:20,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432871458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:28:20,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:28:20,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:28:20,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419125395] [2021-10-29 05:28:20,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:28:20,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:28:20,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:28:20,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:20,181 INFO L87 Difference]: Start difference. First operand 981 states and 1394 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:20,358 INFO L93 Difference]: Finished difference Result 2107 states and 3029 transitions. [2021-10-29 05:28:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:28:20,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 147 [2021-10-29 05:28:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:20,367 INFO L225 Difference]: With dead ends: 2107 [2021-10-29 05:28:20,367 INFO L226 Difference]: Without dead ends: 1128 [2021-10-29 05:28:20,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:20,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-10-29 05:28:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1080. [2021-10-29 05:28:20,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 1.4031510658016682) internal successors, (1514), 1079 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1514 transitions. [2021-10-29 05:28:20,411 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1514 transitions. Word has length 147 [2021-10-29 05:28:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:20,412 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 1514 transitions. [2021-10-29 05:28:20,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1514 transitions. [2021-10-29 05:28:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-10-29 05:28:20,416 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:20,416 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:20,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-10-29 05:28:20,416 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:20,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash 658083166, now seen corresponding path program 1 times [2021-10-29 05:28:20,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:28:20,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802646504] [2021-10-29 05:28:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:20,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:28:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:28:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-10-29 05:28:20,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:28:20,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802646504] [2021-10-29 05:28:20,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802646504] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:28:20,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:28:20,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:28:20,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941790715] [2021-10-29 05:28:20,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:28:20,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:28:20,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:28:20,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:20,469 INFO L87 Difference]: Start difference. First operand 1080 states and 1514 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:20,724 INFO L93 Difference]: Finished difference Result 2276 states and 3243 transitions. [2021-10-29 05:28:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:28:20,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 150 [2021-10-29 05:28:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:20,733 INFO L225 Difference]: With dead ends: 2276 [2021-10-29 05:28:20,734 INFO L226 Difference]: Without dead ends: 1195 [2021-10-29 05:28:20,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2021-10-29 05:28:20,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1185. [2021-10-29 05:28:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1184 states have (on average 1.4358108108108107) internal successors, (1700), 1184 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1700 transitions. [2021-10-29 05:28:20,782 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1700 transitions. Word has length 150 [2021-10-29 05:28:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:20,783 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 1700 transitions. [2021-10-29 05:28:20,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:20,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1700 transitions. [2021-10-29 05:28:20,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-10-29 05:28:20,787 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:20,787 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:20,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-10-29 05:28:20,788 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:20,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash 736090851, now seen corresponding path program 1 times [2021-10-29 05:28:20,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:28:20,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137560277] [2021-10-29 05:28:20,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:20,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:28:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:28:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-29 05:28:20,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:28:20,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137560277] [2021-10-29 05:28:20,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137560277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:28:20,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:28:20,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:28:20,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584987431] [2021-10-29 05:28:20,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:28:20,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:28:20,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:28:20,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:20,848 INFO L87 Difference]: Start difference. First operand 1185 states and 1700 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:21,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:28:21,037 INFO L93 Difference]: Finished difference Result 2341 states and 3356 transitions. [2021-10-29 05:28:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:28:21,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 170 [2021-10-29 05:28:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:28:21,046 INFO L225 Difference]: With dead ends: 2341 [2021-10-29 05:28:21,046 INFO L226 Difference]: Without dead ends: 1158 [2021-10-29 05:28:21,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:28:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-10-29 05:28:21,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1152. [2021-10-29 05:28:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 1.3909643788010426) internal successors, (1601), 1151 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1601 transitions. [2021-10-29 05:28:21,091 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1601 transitions. Word has length 170 [2021-10-29 05:28:21,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:28:21,092 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1601 transitions. [2021-10-29 05:28:21,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:28:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1601 transitions. [2021-10-29 05:28:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-29 05:28:21,097 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:28:21,097 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:21,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-10-29 05:28:21,098 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:28:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:28:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1003490819, now seen corresponding path program 1 times [2021-10-29 05:28:21,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:28:21,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445627904] [2021-10-29 05:28:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:28:21,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:28:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:28:21,185 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:28:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:28:21,401 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:28:21,401 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:28:21,402 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:28:21,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-10-29 05:28:21,408 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:28:21,414 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:28:21,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:28:21 BoogieIcfgContainer [2021-10-29 05:28:21,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:28:21,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:28:21,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:28:21,609 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:28:21,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:26:50" (3/4) ... [2021-10-29 05:28:21,612 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:28:21,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:28:21,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:28:21,759 INFO L168 Benchmark]: Toolchain (without parser) took 93108.06 ms. Allocated memory was 113.2 MB in the beginning and 343.9 MB in the end (delta: 230.7 MB). Free memory was 80.9 MB in the beginning and 173.8 MB in the end (delta: -92.9 MB). Peak memory consumption was 138.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,759 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:28:21,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.16 ms. Allocated memory is still 113.2 MB. Free memory was 80.7 MB in the beginning and 83.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.65 ms. Allocated memory is still 113.2 MB. Free memory was 83.4 MB in the beginning and 80.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,760 INFO L168 Benchmark]: Boogie Preprocessor took 79.96 ms. Allocated memory is still 113.2 MB. Free memory was 80.5 MB in the beginning and 78.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,760 INFO L168 Benchmark]: RCFGBuilder took 1493.83 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.4 MB in the beginning and 82.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,761 INFO L168 Benchmark]: TraceAbstraction took 90728.89 ms. Allocated memory was 136.3 MB in the beginning and 343.9 MB in the end (delta: 207.6 MB). Free memory was 81.9 MB in the beginning and 194.8 MB in the end (delta: -112.9 MB). Peak memory consumption was 95.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,761 INFO L168 Benchmark]: Witness Printer took 148.90 ms. Allocated memory is still 343.9 MB. Free memory was 194.8 MB in the beginning and 173.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:28:21,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 550.16 ms. Allocated memory is still 113.2 MB. Free memory was 80.7 MB in the beginning and 83.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.65 ms. Allocated memory is still 113.2 MB. Free memory was 83.4 MB in the beginning and 80.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.96 ms. Allocated memory is still 113.2 MB. Free memory was 80.5 MB in the beginning and 78.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1493.83 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.4 MB in the beginning and 82.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 90728.89 ms. Allocated memory was 136.3 MB in the beginning and 343.9 MB in the end (delta: 207.6 MB). Free memory was 81.9 MB in the beginning and 194.8 MB in the end (delta: -112.9 MB). Peak memory consumption was 95.1 MB. Max. memory is 16.1 GB. * Witness Printer took 148.90 ms. Allocated memory is still 343.9 MB. Free memory was 194.8 MB in the beginning and 173.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 642]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L24] int s__info_callback = __VERIFIER_nondet_int() ; [L25] int s__in_handshake = __VERIFIER_nondet_int() ; [L26] int s__state ; [L27] int s__new_session ; [L28] int s__server ; [L29] int s__version = __VERIFIER_nondet_int() ; [L30] int s__type ; [L31] int s__init_num ; [L32] int s__hit = __VERIFIER_nondet_int() ; [L33] int s__rwstate ; [L34] int s__init_buf___0 = 1; [L35] int s__debug = __VERIFIER_nondet_int() ; [L36] int s__shutdown ; [L37] int s__cert = __VERIFIER_nondet_int() ; [L38] int s__options = __VERIFIER_nondet_int() ; [L39] int s__verify_mode = __VERIFIER_nondet_int() ; [L40] int s__session__peer = __VERIFIER_nondet_int() ; [L41] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L42] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L44] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L45] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L46] int s__s3__tmp__cert_request ; [L47] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L48] int s__s3__tmp__use_rsa_tmp ; [L49] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__new_cipher__algorithms ; [L51] int s__s3__tmp__next_state___0 ; [L52] int s__s3__tmp__new_cipher__algo_strength ; [L53] int s__session__cipher ; [L54] int buf ; [L55] unsigned long l ; [L56] unsigned long Time ; [L57] unsigned long tmp ; [L58] int cb ; [L59] long num1 = __VERIFIER_nondet_long() ; [L60] int ret ; [L61] int new_state ; [L62] int state ; [L63] int skip ; [L64] int got_new_session ; [L65] int tmp___1 = __VERIFIER_nondet_int() ; [L66] int tmp___2 = __VERIFIER_nondet_int() ; [L67] int tmp___3 = __VERIFIER_nondet_int() ; [L68] int tmp___4 = __VERIFIER_nondet_int() ; [L69] int tmp___5 = __VERIFIER_nondet_int() ; [L70] int tmp___6 = __VERIFIER_nondet_int() ; [L71] int tmp___7 = __VERIFIER_nondet_int() ; [L72] long tmp___8 = __VERIFIER_nondet_long() ; [L73] int tmp___9 = __VERIFIER_nondet_int() ; [L74] int tmp___10 = __VERIFIER_nondet_int() ; [L75] int blastFlag ; [L76] int __cil_tmp55 ; [L77] unsigned long __cil_tmp56 ; [L78] unsigned long __cil_tmp57 ; [L79] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L80] unsigned long __cil_tmp59 ; [L81] int __cil_tmp60 ; [L82] unsigned long __cil_tmp61 ; [L85] s__state = initial_state [L86] blastFlag = 0 [L87] tmp = __VERIFIER_nondet_int() [L88] Time = tmp [L89] cb = 0 [L90] ret = -1 [L91] skip = 0 [L92] got_new_session = 0 [L93] COND TRUE s__info_callback != 0 [L94] cb = s__info_callback [L100] s__in_handshake ++ [L101] COND TRUE tmp___1 + 12288 [L102] COND TRUE tmp___2 + 16384 [L106] COND FALSE !(s__cert == 0) [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND TRUE s__state == 8464 [L283] s__shutdown = 0 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 0 [L286] blastFlag = 1 [L288] COND FALSE !(ret <= 0) [L291] got_new_session = 1 [L292] s__state = 8496 [L293] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND TRUE s__state == 8496 [L297] ret = __VERIFIER_nondet_int() [L298] COND TRUE blastFlag == 1 [L299] blastFlag = 2 [L305] COND FALSE !(ret <= 0) [L308] COND FALSE !(\read(s__hit)) [L311] s__state = 8512 [L313] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND TRUE s__state == 8512 [L318] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L319] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L320] COND TRUE __cil_tmp56 + 256UL [L321] skip = 1 [L329] s__state = 8528 [L330] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND TRUE s__state == 8528 [L334] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L335] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L337] __cil_tmp57 = (unsigned long )s__options [L338] COND TRUE __cil_tmp57 + 2097152UL [L339] s__s3__tmp__use_rsa_tmp = 1 [L344] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L371] ret = __VERIFIER_nondet_int() [L372] COND FALSE !(ret <= 0) [L389] s__state = 8544 [L390] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND TRUE s__state == 8544 [L394] COND TRUE s__verify_mode + 1 [L395] COND FALSE !(s__session__peer != 0) [L406] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L407] __cil_tmp61 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L408] COND FALSE !(__cil_tmp61 + 256UL) [L418] s__s3__tmp__cert_request = 1 [L419] ret = __VERIFIER_nondet_int() [L420] COND FALSE !(ret <= 0) [L423] s__state = 8448 [L424] s__s3__tmp__next_state___0 = 8576 [L425] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND FALSE !(s__state == 8544) [L167] COND FALSE !(s__state == 8545) [L170] COND FALSE !(s__state == 8560) [L173] COND FALSE !(s__state == 8561) [L176] COND TRUE s__state == 8448 [L446] COND FALSE !(num1 > 0L) [L455] s__state = s__s3__tmp__next_state___0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND FALSE !(s__state == 8544) [L167] COND FALSE !(s__state == 8545) [L170] COND FALSE !(s__state == 8560) [L173] COND FALSE !(s__state == 8561) [L176] COND FALSE !(s__state == 8448) [L179] COND TRUE s__state == 8576 [L459] ret = __VERIFIER_nondet_int() [L460] COND FALSE !(ret <= 0) [L463] COND FALSE !(ret == 2) [L466] ret = __VERIFIER_nondet_int() [L467] COND FALSE !(ret <= 0) [L470] s__init_num = 0 [L471] s__state = 8592 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND TRUE state == 8576 [L615] COND TRUE s__state == 8592 [L616] COND TRUE tmp___1 != -12288 [L617] COND TRUE tmp___2 != -16384 [L618] COND TRUE __cil_tmp56 != 4294967040 [L619] COND TRUE __cil_tmp58 != 4294967294 [L620] COND TRUE tmp___7 != 1024 [L621] COND TRUE tmp___7 != 512 [L642] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 90.4s, OverallIterations: 15, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2409 SDtfs, 1557 SDslu, 2674 SDs, 0 SdLazy, 1874 SolverSat, 361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 513 GetRequests, 387 SyntacticMatches, 29 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 70.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1185occurred in iteration=13, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 727 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1503 NumberOfCodeBlocks, 1503 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1463 ConstructedInterpolants, 0 QuantifiedInterpolants, 2934 SizeOfPredicates, 1 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 1240/1492 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 proved your program to be incorrect! [2021-10-29 05:28:21,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e62b67-f735-45e4-8f2c-52abcdcba3c6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...