./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i --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_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/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_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/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_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/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 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 04:35:07,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:35:07,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:35:07,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:35:07,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:35:07,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:35:07,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:35:07,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:35:07,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:35:07,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:35:07,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:35:07,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:35:07,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:35:07,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:35:07,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:35:07,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:35:07,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:35:07,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:35:07,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:35:07,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:35:07,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:35:07,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:35:07,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:35:07,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:35:07,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:35:07,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:35:07,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:35:07,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:35:07,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:35:07,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:35:07,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:35:07,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:35:07,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:35:07,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:35:07,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:35:07,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:35:07,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:35:07,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:35:07,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:35:07,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:35:07,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:35:07,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:35:07,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:35:07,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:35:07,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:35:07,243 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:35:07,244 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:35:07,244 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:35:07,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:35:07,244 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:35:07,245 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:35:07,245 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:35:07,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:35:07,247 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:35:07,247 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:35:07,247 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:35:07,247 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:35:07,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:35:07,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:35:07,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:35:07,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:35:07,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:35:07,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:35:07,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:35:07,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:35:07,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:35:07,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:35:07,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:35:07,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:35:07,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:35:07,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:35:07,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:35:07,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:35:07,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:35:07,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:35:07,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:35:07,255 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:35:07,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:35:07,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:35:07,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:35:07,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:35:07,256 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_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af [2021-10-29 04:35:07,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:35:07,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:35:07,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:35:07,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:35:07,597 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:35:07,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2021-10-29 04:35:07,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/data/21ca24797/ed14fd362e7742bdbeb3f12febd60a89/FLAG087fe0e42 [2021-10-29 04:35:08,375 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:35:08,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2021-10-29 04:35:08,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/data/21ca24797/ed14fd362e7742bdbeb3f12febd60a89/FLAG087fe0e42 [2021-10-29 04:35:08,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/data/21ca24797/ed14fd362e7742bdbeb3f12febd60a89 [2021-10-29 04:35:08,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:35:08,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:35:08,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:35:08,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:35:08,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:35:08,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:35:08" (1/1) ... [2021-10-29 04:35:08,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711fd60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:08, skipping insertion in model container [2021-10-29 04:35:08,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:35:08" (1/1) ... [2021-10-29 04:35:08,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:35:08,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:35:08,934 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_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2021-10-29 04:35:09,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:35:09,322 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:35:09,337 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_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2021-10-29 04:35:09,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:35:09,469 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:35:09,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09 WrapperNode [2021-10-29 04:35:09,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:35:09,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:35:09,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:35:09,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:35:09,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:35:09,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:35:09,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:35:09,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:35:09,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:35:09,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:35:09,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:35:09,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:35:09,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (1/1) ... [2021-10-29 04:35:09,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:35:09,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:35:09,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:35:09,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:35:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:35:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 04:35:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:35:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:35:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-29 04:35:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-29 04:35:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-29 04:35:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-29 04:35:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-29 04:35:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-29 04:35:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-29 04:35:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-29 04:35:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:35:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 04:35:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:35:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:35:09,794 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 04:35:12,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:35:12,107 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 04:35:12,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:12 BoogieIcfgContainer [2021-10-29 04:35:12,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:35:12,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:35:12,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:35:12,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:35:12,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:35:08" (1/3) ... [2021-10-29 04:35:12,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687dced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:35:12, skipping insertion in model container [2021-10-29 04:35:12,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:09" (2/3) ... [2021-10-29 04:35:12,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687dced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:35:12, skipping insertion in model container [2021-10-29 04:35:12,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:12" (3/3) ... [2021-10-29 04:35:12,121 INFO L111 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2021-10-29 04:35:12,127 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 04:35:12,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:35:12,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 04:35:12,128 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 04:35:12,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,182 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,182 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,186 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,191 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,191 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,200 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,200 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,203 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,203 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,203 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,203 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,204 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,211 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,211 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,211 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,212 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,212 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,212 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,212 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,213 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,215 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,216 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,220 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,221 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,221 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,222 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,225 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:35:12,226 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 04:35:12,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:35:12,286 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 04:35:12,286 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-29 04:35:12,304 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 04:35:12,317 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 276 flow [2021-10-29 04:35:12,321 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 276 flow [2021-10-29 04:35:12,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 276 flow [2021-10-29 04:35:12,382 INFO L129 PetriNetUnfolder]: 2/124 cut-off events. [2021-10-29 04:35:12,382 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 04:35:12,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-29 04:35:12,392 INFO L116 LiptonReduction]: Number of co-enabled transitions 2928 [2021-10-29 04:35:23,847 INFO L131 LiptonReduction]: Checked pairs total: 7719 [2021-10-29 04:35:23,848 INFO L133 LiptonReduction]: Total number of compositions: 103 [2021-10-29 04:35:23,862 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 35 transitions, 90 flow [2021-10-29 04:35:24,109 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4130 states, 4127 states have (on average 4.1293918100315) internal successors, (17042), 4129 states have internal predecessors, (17042), 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 04:35:24,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 4130 states, 4127 states have (on average 4.1293918100315) internal successors, (17042), 4129 states have internal predecessors, (17042), 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 04:35:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:35:24,140 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:24,141 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:24,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:24,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1836158669, now seen corresponding path program 1 times [2021-10-29 04:35:24,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:24,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194692100] [2021-10-29 04:35:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:24,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:24,549 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 04:35:24,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:24,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194692100] [2021-10-29 04:35:24,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194692100] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:24,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:24,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:35:24,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51014319] [2021-10-29 04:35:24,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:35:24,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:35:24,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:35:24,609 INFO L87 Difference]: Start difference. First operand has 4130 states, 4127 states have (on average 4.1293918100315) internal successors, (17042), 4129 states have internal predecessors, (17042), 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, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 04:35:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:24,793 INFO L93 Difference]: Finished difference Result 3370 states and 13144 transitions. [2021-10-29 04:35:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:35:24,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 04:35:24,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:24,873 INFO L225 Difference]: With dead ends: 3370 [2021-10-29 04:35:24,874 INFO L226 Difference]: Without dead ends: 3250 [2021-10-29 04:35:24,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 04:35:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-10-29 04:35:25,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3250. [2021-10-29 04:35:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 3249 states have (on average 3.920590951061865) internal successors, (12738), 3249 states have internal predecessors, (12738), 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 04:35:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 12738 transitions. [2021-10-29 04:35:25,217 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 12738 transitions. Word has length 7 [2021-10-29 04:35:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:25,219 INFO L470 AbstractCegarLoop]: Abstraction has 3250 states and 12738 transitions. [2021-10-29 04:35:25,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 04:35:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 12738 transitions. [2021-10-29 04:35:25,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:35:25,232 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:25,232 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:25,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:35:25,233 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1967089732, now seen corresponding path program 1 times [2021-10-29 04:35:25,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:25,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815598606] [2021-10-29 04:35:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:25,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:25,535 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 04:35:25,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:25,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815598606] [2021-10-29 04:35:25,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815598606] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:25,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:25,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:35:25,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544334495] [2021-10-29 04:35:25,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:35:25,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:35:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:35:25,548 INFO L87 Difference]: Start difference. First operand 3250 states and 12738 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:25,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:25,699 INFO L93 Difference]: Finished difference Result 3786 states and 14376 transitions. [2021-10-29 04:35:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:35:25,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:35:25,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:25,811 INFO L225 Difference]: With dead ends: 3786 [2021-10-29 04:35:25,812 INFO L226 Difference]: Without dead ends: 3186 [2021-10-29 04:35:25,812 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 04:35:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2021-10-29 04:35:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3186. [2021-10-29 04:35:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 3.90392464678179) internal successors, (12434), 3185 states have internal predecessors, (12434), 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 04:35:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 12434 transitions. [2021-10-29 04:35:25,984 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 12434 transitions. Word has length 12 [2021-10-29 04:35:25,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:25,984 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 12434 transitions. [2021-10-29 04:35:25,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:25,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 12434 transitions. [2021-10-29 04:35:25,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:35:25,988 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:25,988 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:25,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:35:25,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:25,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1367779434, now seen corresponding path program 1 times [2021-10-29 04:35:26,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:26,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107776088] [2021-10-29 04:35:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:26,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:26,253 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 04:35:26,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:26,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107776088] [2021-10-29 04:35:26,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107776088] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:26,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:26,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:35:26,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655825274] [2021-10-29 04:35:26,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:35:26,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:35:26,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:35:26,263 INFO L87 Difference]: Start difference. First operand 3186 states and 12434 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:26,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:26,338 INFO L93 Difference]: Finished difference Result 3370 states and 12768 transitions. [2021-10-29 04:35:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:35:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 04:35:26,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:26,371 INFO L225 Difference]: With dead ends: 3370 [2021-10-29 04:35:26,371 INFO L226 Difference]: Without dead ends: 2818 [2021-10-29 04:35:26,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 04:35:26,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-10-29 04:35:26,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2818. [2021-10-29 04:35:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 3.850195243166489) internal successors, (10846), 2817 states have internal predecessors, (10846), 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 04:35:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 10846 transitions. [2021-10-29 04:35:26,558 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 10846 transitions. Word has length 13 [2021-10-29 04:35:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:26,558 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 10846 transitions. [2021-10-29 04:35:26,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 10846 transitions. [2021-10-29 04:35:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:35:26,563 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:26,563 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:26,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:35:26,563 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2026011286, now seen corresponding path program 1 times [2021-10-29 04:35:26,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:26,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301170384] [2021-10-29 04:35:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:26,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:26,928 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 04:35:26,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:26,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301170384] [2021-10-29 04:35:26,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301170384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:26,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:26,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:35:26,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351212756] [2021-10-29 04:35:26,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:35:26,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:26,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:35:26,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:35:26,932 INFO L87 Difference]: Start difference. First operand 2818 states and 10846 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 04:35:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:27,133 INFO L93 Difference]: Finished difference Result 3210 states and 12064 transitions. [2021-10-29 04:35:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:35:27,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-10-29 04:35:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:27,165 INFO L225 Difference]: With dead ends: 3210 [2021-10-29 04:35:27,166 INFO L226 Difference]: Without dead ends: 2818 [2021-10-29 04:35:27,166 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:35:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-10-29 04:35:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2818. [2021-10-29 04:35:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 3.8274760383386583) internal successors, (10782), 2817 states have internal predecessors, (10782), 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 04:35:27,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 10782 transitions. [2021-10-29 04:35:27,310 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 10782 transitions. Word has length 15 [2021-10-29 04:35:27,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:27,311 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 10782 transitions. [2021-10-29 04:35:27,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 04:35:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 10782 transitions. [2021-10-29 04:35:27,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:35:27,317 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:27,317 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:27,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 04:35:27,318 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:27,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1866135553, now seen corresponding path program 1 times [2021-10-29 04:35:27,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:27,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577594414] [2021-10-29 04:35:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:27,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:27,433 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 04:35:27,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:27,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577594414] [2021-10-29 04:35:27,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577594414] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:27,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:27,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:35:27,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276149979] [2021-10-29 04:35:27,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:35:27,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:27,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:35:27,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:35:27,437 INFO L87 Difference]: Start difference. First operand 2818 states and 10782 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 04:35:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:27,611 INFO L93 Difference]: Finished difference Result 3394 states and 12738 transitions. [2021-10-29 04:35:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:35:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-10-29 04:35:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:27,637 INFO L225 Difference]: With dead ends: 3394 [2021-10-29 04:35:27,638 INFO L226 Difference]: Without dead ends: 3098 [2021-10-29 04:35:27,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:35:27,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2021-10-29 04:35:27,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3002. [2021-10-29 04:35:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 3001 states have (on average 3.8080639786737756) internal successors, (11428), 3001 states have internal predecessors, (11428), 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 04:35:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 11428 transitions. [2021-10-29 04:35:27,770 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 11428 transitions. Word has length 16 [2021-10-29 04:35:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:27,770 INFO L470 AbstractCegarLoop]: Abstraction has 3002 states and 11428 transitions. [2021-10-29 04:35:27,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 04:35:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 11428 transitions. [2021-10-29 04:35:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:35:27,777 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:27,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:27,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 04:35:27,777 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1363264695, now seen corresponding path program 1 times [2021-10-29 04:35:27,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:27,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502311804] [2021-10-29 04:35:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:27,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:27,923 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 04:35:27,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:27,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502311804] [2021-10-29 04:35:27,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502311804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:27,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:27,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:35:27,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572458664] [2021-10-29 04:35:27,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:35:27,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:35:27,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:35:27,926 INFO L87 Difference]: Start difference. First operand 3002 states and 11428 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 04:35:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:27,975 INFO L93 Difference]: Finished difference Result 2986 states and 10344 transitions. [2021-10-29 04:35:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:35:27,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 04:35:27,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:27,987 INFO L225 Difference]: With dead ends: 2986 [2021-10-29 04:35:27,988 INFO L226 Difference]: Without dead ends: 2282 [2021-10-29 04:35:27,988 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 04:35:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2021-10-29 04:35:28,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2021-10-29 04:35:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 3.431828145550197) internal successors, (7828), 2281 states have internal predecessors, (7828), 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 04:35:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 7828 transitions. [2021-10-29 04:35:28,077 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 7828 transitions. Word has length 17 [2021-10-29 04:35:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:28,078 INFO L470 AbstractCegarLoop]: Abstraction has 2282 states and 7828 transitions. [2021-10-29 04:35:28,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 04:35:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 7828 transitions. [2021-10-29 04:35:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:35:28,085 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:28,086 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:28,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 04:35:28,086 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1171923782, now seen corresponding path program 1 times [2021-10-29 04:35:28,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:28,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409773850] [2021-10-29 04:35:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:28,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:28,254 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 04:35:28,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:28,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409773850] [2021-10-29 04:35:28,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409773850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:28,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:28,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 04:35:28,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115058357] [2021-10-29 04:35:28,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:35:28,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:35:28,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:35:28,257 INFO L87 Difference]: Start difference. First operand 2282 states and 7828 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:28,311 INFO L93 Difference]: Finished difference Result 1828 states and 5735 transitions. [2021-10-29 04:35:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:35:28,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 04:35:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:28,318 INFO L225 Difference]: With dead ends: 1828 [2021-10-29 04:35:28,319 INFO L226 Difference]: Without dead ends: 1400 [2021-10-29 04:35:28,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:35:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2021-10-29 04:35:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1400. [2021-10-29 04:35:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.073624017155111) internal successors, (4300), 1399 states have internal predecessors, (4300), 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 04:35:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 4300 transitions. [2021-10-29 04:35:28,380 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 4300 transitions. Word has length 18 [2021-10-29 04:35:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:28,380 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 4300 transitions. [2021-10-29 04:35:28,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 4300 transitions. [2021-10-29 04:35:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 04:35:28,385 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:28,385 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] [2021-10-29 04:35:28,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 04:35:28,386 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:28,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash -30400417, now seen corresponding path program 1 times [2021-10-29 04:35:28,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:28,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423197421] [2021-10-29 04:35:28,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:28,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:28,485 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 04:35:28,486 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:28,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423197421] [2021-10-29 04:35:28,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423197421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:28,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:28,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 04:35:28,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939443434] [2021-10-29 04:35:28,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:35:28,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:28,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:35:28,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:35:28,489 INFO L87 Difference]: Start difference. First operand 1400 states and 4300 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:28,546 INFO L93 Difference]: Finished difference Result 1165 states and 3558 transitions. [2021-10-29 04:35:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:35:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 04:35:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:28,552 INFO L225 Difference]: With dead ends: 1165 [2021-10-29 04:35:28,552 INFO L226 Difference]: Without dead ends: 1036 [2021-10-29 04:35:28,552 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:35:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-10-29 04:35:28,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 932. [2021-10-29 04:35:28,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 931 states have (on average 3.082706766917293) internal successors, (2870), 931 states have internal predecessors, (2870), 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 04:35:28,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 2870 transitions. [2021-10-29 04:35:28,594 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 2870 transitions. Word has length 21 [2021-10-29 04:35:28,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:28,594 INFO L470 AbstractCegarLoop]: Abstraction has 932 states and 2870 transitions. [2021-10-29 04:35:28,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:28,594 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 2870 transitions. [2021-10-29 04:35:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:35:28,598 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:28,599 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 04:35:28,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 04:35:28,599 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash -901934991, now seen corresponding path program 1 times [2021-10-29 04:35:28,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:28,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431569651] [2021-10-29 04:35:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:28,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:28,697 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 04:35:28,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:28,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431569651] [2021-10-29 04:35:28,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431569651] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:28,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:28,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 04:35:28,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615272289] [2021-10-29 04:35:28,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:35:28,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:28,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:35:28,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:35:28,700 INFO L87 Difference]: Start difference. First operand 932 states and 2870 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 04:35:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:28,740 INFO L93 Difference]: Finished difference Result 1216 states and 3648 transitions. [2021-10-29 04:35:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:35:28,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 04:35:28,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:28,745 INFO L225 Difference]: With dead ends: 1216 [2021-10-29 04:35:28,745 INFO L226 Difference]: Without dead ends: 938 [2021-10-29 04:35:28,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:35:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2021-10-29 04:35:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 932. [2021-10-29 04:35:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 931 states have (on average 3.0) internal successors, (2793), 931 states have internal predecessors, (2793), 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 04:35:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 2793 transitions. [2021-10-29 04:35:28,799 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 2793 transitions. Word has length 24 [2021-10-29 04:35:28,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:28,800 INFO L470 AbstractCegarLoop]: Abstraction has 932 states and 2793 transitions. [2021-10-29 04:35:28,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 04:35:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 2793 transitions. [2021-10-29 04:35:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:35:28,804 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:28,804 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 04:35:28,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 04:35:28,805 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:28,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:28,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2119120273, now seen corresponding path program 2 times [2021-10-29 04:35:28,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:28,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915652411] [2021-10-29 04:35:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:28,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:28,919 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 04:35:28,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:28,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915652411] [2021-10-29 04:35:28,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915652411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:28,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:28,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:35:28,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026843184] [2021-10-29 04:35:28,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:35:28,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:35:28,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:35:28,922 INFO L87 Difference]: Start difference. First operand 932 states and 2793 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 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 04:35:28,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:28,983 INFO L93 Difference]: Finished difference Result 888 states and 2704 transitions. [2021-10-29 04:35:28,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:35:28,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 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 04:35:28,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:28,986 INFO L225 Difference]: With dead ends: 888 [2021-10-29 04:35:28,986 INFO L226 Difference]: Without dead ends: 459 [2021-10-29 04:35:28,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:35:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-10-29 04:35:28,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 443. [2021-10-29 04:35:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 2.841628959276018) internal successors, (1256), 442 states have internal predecessors, (1256), 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 04:35:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1256 transitions. [2021-10-29 04:35:29,003 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1256 transitions. Word has length 24 [2021-10-29 04:35:29,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:29,003 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1256 transitions. [2021-10-29 04:35:29,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 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 04:35:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1256 transitions. [2021-10-29 04:35:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:35:29,005 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:29,006 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, 1, 1, 1, 1] [2021-10-29 04:35:29,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 04:35:29,006 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1598300554, now seen corresponding path program 1 times [2021-10-29 04:35:29,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:29,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942691549] [2021-10-29 04:35:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:29,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:29,243 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 04:35:29,243 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:29,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942691549] [2021-10-29 04:35:29,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942691549] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:29,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:29,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 04:35:29,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811276837] [2021-10-29 04:35:29,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:35:29,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:29,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:35:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:35:29,246 INFO L87 Difference]: Start difference. First operand 443 states and 1256 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 04:35:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:29,575 INFO L93 Difference]: Finished difference Result 814 states and 2230 transitions. [2021-10-29 04:35:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 04:35:29,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 28 [2021-10-29 04:35:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:29,577 INFO L225 Difference]: With dead ends: 814 [2021-10-29 04:35:29,577 INFO L226 Difference]: Without dead ends: 288 [2021-10-29 04:35:29,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-10-29 04:35:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-29 04:35:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 215. [2021-10-29 04:35:29,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 2.542056074766355) internal successors, (544), 214 states have internal predecessors, (544), 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 04:35:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 544 transitions. [2021-10-29 04:35:29,586 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 544 transitions. Word has length 28 [2021-10-29 04:35:29,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:29,586 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 544 transitions. [2021-10-29 04:35:29,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 04:35:29,586 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 544 transitions. [2021-10-29 04:35:29,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:35:29,590 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:29,590 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, 1, 1, 1, 1] [2021-10-29 04:35:29,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 04:35:29,590 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:29,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:29,591 INFO L85 PathProgramCache]: Analyzing trace with hash 217261816, now seen corresponding path program 2 times [2021-10-29 04:35:29,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:29,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890093329] [2021-10-29 04:35:29,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:29,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:29,928 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 04:35:29,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:29,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890093329] [2021-10-29 04:35:29,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890093329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:29,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:29,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:35:29,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329713266] [2021-10-29 04:35:29,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:35:29,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:35:29,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:35:29,931 INFO L87 Difference]: Start difference. First operand 215 states and 544 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 04:35:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:30,113 INFO L93 Difference]: Finished difference Result 254 states and 631 transitions. [2021-10-29 04:35:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:35:30,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2021-10-29 04:35:30,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:30,114 INFO L225 Difference]: With dead ends: 254 [2021-10-29 04:35:30,114 INFO L226 Difference]: Without dead ends: 169 [2021-10-29 04:35:30,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:35:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-29 04:35:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-10-29 04:35:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 2.4761904761904763) internal successors, (416), 168 states have internal predecessors, (416), 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 04:35:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 416 transitions. [2021-10-29 04:35:30,121 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 416 transitions. Word has length 28 [2021-10-29 04:35:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:30,121 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 416 transitions. [2021-10-29 04:35:30,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 04:35:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 416 transitions. [2021-10-29 04:35:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:35:30,124 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:30,125 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, 1, 1, 1, 1] [2021-10-29 04:35:30,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 04:35:30,125 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:35:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash 740086046, now seen corresponding path program 3 times [2021-10-29 04:35:30,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:30,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007073033] [2021-10-29 04:35:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:30,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:35:30,215 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:35:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:35:30,369 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:35:30,369 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:35:30,370 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:35:30,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:35:30,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 04:35:30,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 04:35:30,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 04:35:30,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-29 04:35:30,373 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:35:30,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 04:35:30,375 INFO L731 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:30,380 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 04:35:30,380 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:35:30,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:35:30 BasicIcfg [2021-10-29 04:35:30,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:35:30,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:35:30,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:35:30,537 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:35:30,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:12" (3/4) ... [2021-10-29 04:35:30,539 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:35:30,681 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:35:30,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:35:30,683 INFO L168 Benchmark]: Toolchain (without parser) took 22075.71 ms. Allocated memory was 81.8 MB in the beginning and 459.3 MB in the end (delta: 377.5 MB). Free memory was 60.4 MB in the beginning and 336.3 MB in the end (delta: -275.9 MB). Peak memory consumption was 299.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,683 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:35:30,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.76 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 60.4 MB in the beginning and 59.7 MB in the end (delta: 667.7 kB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.89 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 56.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,685 INFO L168 Benchmark]: Boogie Preprocessor took 61.59 ms. Allocated memory is still 98.6 MB. Free memory was 56.6 MB in the beginning and 54.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,685 INFO L168 Benchmark]: RCFGBuilder took 2459.52 ms. Allocated memory is still 98.6 MB. Free memory was 54.6 MB in the beginning and 57.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,685 INFO L168 Benchmark]: TraceAbstraction took 18422.55 ms. Allocated memory was 98.6 MB in the beginning and 459.3 MB in the end (delta: 360.7 MB). Free memory was 56.5 MB in the beginning and 150.5 MB in the end (delta: -93.9 MB). Peak memory consumption was 266.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,686 INFO L168 Benchmark]: Witness Printer took 144.83 ms. Allocated memory is still 459.3 MB. Free memory was 150.5 MB in the beginning and 336.3 MB in the end (delta: -185.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:30,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 859.76 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 60.4 MB in the beginning and 59.7 MB in the end (delta: 667.7 kB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.89 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 56.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.59 ms. Allocated memory is still 98.6 MB. Free memory was 56.6 MB in the beginning and 54.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2459.52 ms. Allocated memory is still 98.6 MB. Free memory was 54.6 MB in the beginning and 57.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18422.55 ms. Allocated memory was 98.6 MB in the beginning and 459.3 MB in the end (delta: 360.7 MB). Free memory was 56.5 MB in the beginning and 150.5 MB in the end (delta: -93.9 MB). Peak memory consumption was 266.0 MB. Max. memory is 16.1 GB. * Witness Printer took 144.83 ms. Allocated memory is still 459.3 MB. Free memory was 150.5 MB in the beginning and 336.3 MB in the end (delta: -185.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5s, 139 PlacesBefore, 47 PlacesAfterwards, 128 TransitionsBefore, 35 TransitionsAfterwards, 2928 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 7719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3694, positive: 3481, positive conditional: 0, positive unconditional: 3481, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1955, positive: 1894, positive conditional: 0, positive unconditional: 1894, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1955, positive: 1866, positive conditional: 0, positive unconditional: 1866, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 878, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 833, negative conditional: 0, negative unconditional: 833, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3694, positive: 1587, positive conditional: 0, positive unconditional: 1587, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 1955, unknown conditional: 0, unknown unconditional: 1955] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 189, Positive conditional cache size: 0, Positive unconditional cache size: 189, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L846] 0 pthread_t t773; [L847] FCALL, FORK 0 pthread_create(&t773, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t774; [L849] FCALL, FORK 0 pthread_create(&t774, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t775; [L851] FCALL, FORK 0 pthread_create(&t775, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L852] 0 pthread_t t776; [L853] FCALL, FORK 0 pthread_create(&t776, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L815] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 164 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 18.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 482 SDtfs, 692 SDslu, 1020 SDs, 0 SdLazy, 421 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4130occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 295 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:35:30,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9280500-6b9d-4f5c-bad0-e4c37f550dbe/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...