./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053.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_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/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_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/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_19cf6f80-0b79-4121-9516-0353a9dc7c28/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 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:52:40,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:52:40,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:52:40,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:52:40,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:52:40,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:52:40,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:52:40,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:52:40,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:52:40,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:52:40,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:52:40,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:52:40,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:52:40,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:52:40,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:52:40,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:52:40,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:52:40,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:52:40,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:52:40,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:52:40,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:52:40,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:52:40,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:52:40,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:52:40,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:52:40,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:52:40,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:52:40,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:52:40,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:52:40,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:52:40,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:52:40,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:52:40,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:52:40,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:52:40,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:52:40,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:52:40,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:52:40,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:52:40,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:52:40,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:52:40,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:52:40,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:52:40,759 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:52:40,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:52:40,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:52:40,762 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:52:40,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:52:40,762 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:52:40,763 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:52:40,763 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:52:40,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:52:40,763 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:52:40,770 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:52:40,771 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:52:40,771 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:52:40,771 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:52:40,771 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:52:40,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:52:40,772 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:52:40,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:52:40,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:52:40,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:52:40,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:52:40,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:52:40,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:52:40,774 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:52:40,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:52:40,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:52:40,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:52:40,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:52:40,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:52:40,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:52:40,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:52:40,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:52:40,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:52:40,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:52:40,778 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:52:40,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:52:40,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:52:40,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:52:40,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:52:40,779 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_19cf6f80-0b79-4121-9516-0353a9dc7c28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 [2021-10-29 04:52:41,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:52:41,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:52:41,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:52:41,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:52:41,134 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:52:41,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/pthread-wmm/mix053.opt.i [2021-10-29 04:52:41,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/data/7cb0b4d75/03799744ed83407584773f33bad3fb03/FLAG13f325d46 [2021-10-29 04:52:41,872 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:52:41,873 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/sv-benchmarks/c/pthread-wmm/mix053.opt.i [2021-10-29 04:52:41,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/data/7cb0b4d75/03799744ed83407584773f33bad3fb03/FLAG13f325d46 [2021-10-29 04:52:42,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/data/7cb0b4d75/03799744ed83407584773f33bad3fb03 [2021-10-29 04:52:42,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:52:42,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:52:42,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:52:42,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:52:42,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:52:42,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:42,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c49231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42, skipping insertion in model container [2021-10-29 04:52:42,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:42,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:52:42,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:52:42,470 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_19cf6f80-0b79-4121-9516-0353a9dc7c28/sv-benchmarks/c/pthread-wmm/mix053.opt.i[944,957] [2021-10-29 04:52:42,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:52:42,761 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:52:42,775 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_19cf6f80-0b79-4121-9516-0353a9dc7c28/sv-benchmarks/c/pthread-wmm/mix053.opt.i[944,957] [2021-10-29 04:52:42,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:52:42,910 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:52:42,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42 WrapperNode [2021-10-29 04:52:42,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:52:42,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:52:42,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:52:42,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:52:42,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:42,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:42,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:52:42,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:52:42,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:52:42,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:52:42,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:52:43,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:52:43,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:52:43,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:52:43,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (1/1) ... [2021-10-29 04:52:43,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:52:43,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:52:43,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:52:43,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:52:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:52:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 04:52:43,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:52:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:52:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-29 04:52:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-29 04:52:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-29 04:52:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-29 04:52:43,143 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-29 04:52:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-29 04:52:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-29 04:52:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-29 04:52:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:52:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 04:52:43,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:52:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:52:43,146 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 04:52:44,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:52:44,949 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 04:52:44,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:52:44 BoogieIcfgContainer [2021-10-29 04:52:44,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:52:44,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:52:44,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:52:44,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:52:44,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:52:42" (1/3) ... [2021-10-29 04:52:44,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1910659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:52:44, skipping insertion in model container [2021-10-29 04:52:44,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:52:42" (2/3) ... [2021-10-29 04:52:44,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1910659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:52:44, skipping insertion in model container [2021-10-29 04:52:44,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:52:44" (3/3) ... [2021-10-29 04:52:44,963 INFO L111 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2021-10-29 04:52:44,968 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 04:52:44,968 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:52:44,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 04:52:44,969 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 04:52:45,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,013 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,013 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,016 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,017 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,018 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,019 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,052 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,053 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,053 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,053 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,053 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,053 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,054 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,054 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,054 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,054 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,054 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,054 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,057 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,057 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,057 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,057 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,065 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,065 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,067 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,070 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,070 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,071 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,073 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,076 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,078 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 04:52:45,080 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 04:52:45,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:52:45,152 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 04:52:45,152 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-29 04:52:45,176 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 04:52:45,186 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 124 transitions, 268 flow [2021-10-29 04:52:45,189 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 124 transitions, 268 flow [2021-10-29 04:52:45,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 124 transitions, 268 flow [2021-10-29 04:52:45,241 INFO L129 PetriNetUnfolder]: 2/120 cut-off events. [2021-10-29 04:52:45,242 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 04:52:45,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2021-10-29 04:52:45,249 INFO L116 LiptonReduction]: Number of co-enabled transitions 2568 [2021-10-29 04:52:51,689 INFO L131 LiptonReduction]: Checked pairs total: 5802 [2021-10-29 04:52:51,689 INFO L133 LiptonReduction]: Total number of compositions: 106 [2021-10-29 04:52:51,697 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 30 transitions, 80 flow [2021-10-29 04:52:51,813 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1834 states, 1831 states have (on average 3.7575095576187874) internal successors, (6880), 1833 states have internal predecessors, (6880), 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 04:52:51,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 1834 states, 1831 states have (on average 3.7575095576187874) internal successors, (6880), 1833 states have internal predecessors, (6880), 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 04:52:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:52:51,829 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:51,830 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:51,831 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:51,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:51,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1559895326, now seen corresponding path program 1 times [2021-10-29 04:52:51,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:51,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167798694] [2021-10-29 04:52:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:51,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:52,181 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 04:52:52,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:52,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167798694] [2021-10-29 04:52:52,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167798694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:52,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:52,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:52:52,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270058942] [2021-10-29 04:52:52,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:52:52,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:52:52,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:52:52,220 INFO L87 Difference]: Start difference. First operand has 1834 states, 1831 states have (on average 3.7575095576187874) internal successors, (6880), 1833 states have internal predecessors, (6880), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:52:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:52,324 INFO L93 Difference]: Finished difference Result 1514 states and 5584 transitions. [2021-10-29 04:52:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:52:52,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:52:52,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:52,371 INFO L225 Difference]: With dead ends: 1514 [2021-10-29 04:52:52,371 INFO L226 Difference]: Without dead ends: 1450 [2021-10-29 04:52:52,373 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 04:52:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-10-29 04:52:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2021-10-29 04:52:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.710144927536232) internal successors, (5376), 1449 states have internal predecessors, (5376), 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 04:52:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5376 transitions. [2021-10-29 04:52:52,547 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5376 transitions. Word has length 9 [2021-10-29 04:52:52,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:52,548 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5376 transitions. [2021-10-29 04:52:52,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:52:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5376 transitions. [2021-10-29 04:52:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:52:52,551 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:52,552 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:52,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:52:52,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:52,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:52,553 INFO L85 PathProgramCache]: Analyzing trace with hash -115720366, now seen corresponding path program 1 times [2021-10-29 04:52:52,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:52,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881220129] [2021-10-29 04:52:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:52,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:52,679 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 04:52:52,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:52,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881220129] [2021-10-29 04:52:52,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881220129] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:52,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:52,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:52:52,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119437841] [2021-10-29 04:52:52,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:52:52,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:52,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:52:52,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:52:52,689 INFO L87 Difference]: Start difference. First operand 1450 states and 5376 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 04:52:52,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:52,746 INFO L93 Difference]: Finished difference Result 2402 states and 8506 transitions. [2021-10-29 04:52:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:52:52,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 04:52:52,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:52,770 INFO L225 Difference]: With dead ends: 2402 [2021-10-29 04:52:52,770 INFO L226 Difference]: Without dead ends: 2222 [2021-10-29 04:52:52,771 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 04:52:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2021-10-29 04:52:52,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2002. [2021-10-29 04:52:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2002 states, 2001 states have (on average 3.5932033983008496) internal successors, (7190), 2001 states have internal predecessors, (7190), 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 04:52:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2002 states to 2002 states and 7190 transitions. [2021-10-29 04:52:52,887 INFO L78 Accepts]: Start accepts. Automaton has 2002 states and 7190 transitions. Word has length 11 [2021-10-29 04:52:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:52,887 INFO L470 AbstractCegarLoop]: Abstraction has 2002 states and 7190 transitions. [2021-10-29 04:52:52,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 04:52:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2002 states and 7190 transitions. [2021-10-29 04:52:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:52:52,896 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:52,896 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:52,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:52:52,897 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash 728905575, now seen corresponding path program 1 times [2021-10-29 04:52:52,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:52,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938070576] [2021-10-29 04:52:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:52,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:53,095 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 04:52:53,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:53,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938070576] [2021-10-29 04:52:53,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938070576] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:53,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:53,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:52:53,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661496760] [2021-10-29 04:52:53,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:52:53,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:53,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:52:53,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:53,104 INFO L87 Difference]: Start difference. First operand 2002 states and 7190 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 04:52:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:53,164 INFO L93 Difference]: Finished difference Result 2146 states and 7530 transitions. [2021-10-29 04:52:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:52:53,165 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 04:52:53,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:53,188 INFO L225 Difference]: With dead ends: 2146 [2021-10-29 04:52:53,189 INFO L226 Difference]: Without dead ends: 2146 [2021-10-29 04:52:53,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:53,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2021-10-29 04:52:53,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1898. [2021-10-29 04:52:53,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1897 states have (on average 3.5751186083289404) internal successors, (6782), 1897 states have internal predecessors, (6782), 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 04:52:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 6782 transitions. [2021-10-29 04:52:53,285 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 6782 transitions. Word has length 12 [2021-10-29 04:52:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:53,286 INFO L470 AbstractCegarLoop]: Abstraction has 1898 states and 6782 transitions. [2021-10-29 04:52:53,286 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 04:52:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 6782 transitions. [2021-10-29 04:52:53,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:52:53,292 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:53,292 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:53,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:52:53,292 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:53,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash 707635328, now seen corresponding path program 1 times [2021-10-29 04:52:53,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:53,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241797471] [2021-10-29 04:52:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:53,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:53,391 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 04:52:53,391 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:53,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241797471] [2021-10-29 04:52:53,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241797471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:53,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:53,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:52:53,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455539124] [2021-10-29 04:52:53,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:52:53,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:53,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:52:53,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:53,394 INFO L87 Difference]: Start difference. First operand 1898 states and 6782 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 04:52:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:53,441 INFO L93 Difference]: Finished difference Result 2086 states and 7307 transitions. [2021-10-29 04:52:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:52:53,441 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 04:52:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:53,463 INFO L225 Difference]: With dead ends: 2086 [2021-10-29 04:52:53,463 INFO L226 Difference]: Without dead ends: 2086 [2021-10-29 04:52:53,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2021-10-29 04:52:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1868. [2021-10-29 04:52:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1867 states have (on average 3.5607927155865022) internal successors, (6648), 1867 states have internal predecessors, (6648), 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 04:52:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 6648 transitions. [2021-10-29 04:52:53,585 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 6648 transitions. Word has length 12 [2021-10-29 04:52:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:53,586 INFO L470 AbstractCegarLoop]: Abstraction has 1868 states and 6648 transitions. [2021-10-29 04:52:53,586 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 04:52:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 6648 transitions. [2021-10-29 04:52:53,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:52:53,589 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:53,589 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:53,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 04:52:53,589 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:53,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1121235723, now seen corresponding path program 1 times [2021-10-29 04:52:53,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:53,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923884130] [2021-10-29 04:52:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:53,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:53,747 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 04:52:53,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:53,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923884130] [2021-10-29 04:52:53,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923884130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:53,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:53,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:52:53,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229913201] [2021-10-29 04:52:53,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:52:53,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:53,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:52:53,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:53,750 INFO L87 Difference]: Start difference. First operand 1868 states and 6648 transitions. Second operand has 4 states, 4 states have (on average 3.25) 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 04:52:53,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:53,816 INFO L93 Difference]: Finished difference Result 1978 states and 6404 transitions. [2021-10-29 04:52:53,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:52:53,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) 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 04:52:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:53,831 INFO L225 Difference]: With dead ends: 1978 [2021-10-29 04:52:53,831 INFO L226 Difference]: Without dead ends: 1514 [2021-10-29 04:52:53,831 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 04:52:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2021-10-29 04:52:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1514. [2021-10-29 04:52:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.2372769332452083) internal successors, (4898), 1513 states have internal predecessors, (4898), 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 04:52:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 4898 transitions. [2021-10-29 04:52:53,894 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 4898 transitions. Word has length 13 [2021-10-29 04:52:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:53,894 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 4898 transitions. [2021-10-29 04:52:53,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) 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 04:52:53,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 4898 transitions. [2021-10-29 04:52:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:52:53,897 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:53,898 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:53,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 04:52:53,898 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:53,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1156785286, now seen corresponding path program 1 times [2021-10-29 04:52:53,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:53,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133190233] [2021-10-29 04:52:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:53,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:53,977 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 04:52:53,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:53,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133190233] [2021-10-29 04:52:53,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133190233] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:53,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:53,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:52:53,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934963275] [2021-10-29 04:52:53,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:52:53,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:53,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:52:53,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:53,983 INFO L87 Difference]: Start difference. First operand 1514 states and 4898 transitions. Second operand has 4 states, 3 states have (on average 5.0) 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 04:52:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:54,033 INFO L93 Difference]: Finished difference Result 2154 states and 6696 transitions. [2021-10-29 04:52:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:52:54,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) 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 04:52:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:54,048 INFO L225 Difference]: With dead ends: 2154 [2021-10-29 04:52:54,048 INFO L226 Difference]: Without dead ends: 1576 [2021-10-29 04:52:54,048 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:54,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-10-29 04:52:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1352. [2021-10-29 04:52:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1351 states have (on average 3.082901554404145) internal successors, (4165), 1351 states have internal predecessors, (4165), 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 04:52:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 4165 transitions. [2021-10-29 04:52:54,150 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 4165 transitions. Word has length 15 [2021-10-29 04:52:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:54,150 INFO L470 AbstractCegarLoop]: Abstraction has 1352 states and 4165 transitions. [2021-10-29 04:52:54,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) 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 04:52:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 4165 transitions. [2021-10-29 04:52:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:52:54,154 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:54,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:54,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 04:52:54,154 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:54,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:54,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1707166348, now seen corresponding path program 1 times [2021-10-29 04:52:54,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:54,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003883300] [2021-10-29 04:52:54,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:54,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:54,262 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 04:52:54,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:54,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003883300] [2021-10-29 04:52:54,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003883300] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:54,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:54,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 04:52:54,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263716886] [2021-10-29 04:52:54,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:52:54,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:54,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:52:54,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:52:54,265 INFO L87 Difference]: Start difference. First operand 1352 states and 4165 transitions. Second operand has 5 states, 5 states have (on average 3.0) 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 04:52:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:54,333 INFO L93 Difference]: Finished difference Result 1191 states and 3320 transitions. [2021-10-29 04:52:54,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:52:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) 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 04:52:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:54,341 INFO L225 Difference]: With dead ends: 1191 [2021-10-29 04:52:54,342 INFO L226 Difference]: Without dead ends: 907 [2021-10-29 04:52:54,342 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 04:52:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-10-29 04:52:54,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 891. [2021-10-29 04:52:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 2.735955056179775) internal successors, (2435), 890 states have internal predecessors, (2435), 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 04:52:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 2435 transitions. [2021-10-29 04:52:54,376 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 2435 transitions. Word has length 15 [2021-10-29 04:52:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:54,377 INFO L470 AbstractCegarLoop]: Abstraction has 891 states and 2435 transitions. [2021-10-29 04:52:54,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) 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 04:52:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 2435 transitions. [2021-10-29 04:52:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:52:54,379 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:54,379 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 04:52:54,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 04:52:54,380 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:54,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1421626128, now seen corresponding path program 1 times [2021-10-29 04:52:54,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:54,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135623546] [2021-10-29 04:52:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:54,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:54,529 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 04:52:54,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:54,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135623546] [2021-10-29 04:52:54,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135623546] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:54,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:54,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 04:52:54,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588320774] [2021-10-29 04:52:54,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:52:54,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:54,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:52:54,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:52:54,532 INFO L87 Difference]: Start difference. First operand 891 states and 2435 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 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 04:52:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:54,586 INFO L93 Difference]: Finished difference Result 772 states and 2058 transitions. [2021-10-29 04:52:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:52:54,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 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 04:52:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:54,592 INFO L225 Difference]: With dead ends: 772 [2021-10-29 04:52:54,593 INFO L226 Difference]: Without dead ends: 655 [2021-10-29 04:52:54,593 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 04:52:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-10-29 04:52:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 583. [2021-10-29 04:52:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.6924398625429555) internal successors, (1567), 582 states have internal predecessors, (1567), 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 04:52:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1567 transitions. [2021-10-29 04:52:54,614 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1567 transitions. Word has length 17 [2021-10-29 04:52:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:54,614 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1567 transitions. [2021-10-29 04:52:54,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 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 04:52:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1567 transitions. [2021-10-29 04:52:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:52:54,616 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:54,616 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] [2021-10-29 04:52:54,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 04:52:54,617 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:54,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash 650693802, now seen corresponding path program 1 times [2021-10-29 04:52:54,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:54,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334637023] [2021-10-29 04:52:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:54,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:54,802 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 04:52:54,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:54,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334637023] [2021-10-29 04:52:54,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334637023] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:54,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:54,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:52:54,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809891054] [2021-10-29 04:52:54,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:52:54,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:52:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:52:54,807 INFO L87 Difference]: Start difference. First operand 583 states and 1567 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:52:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:54,872 INFO L93 Difference]: Finished difference Result 555 states and 1511 transitions. [2021-10-29 04:52:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:52:54,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-29 04:52:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:54,875 INFO L225 Difference]: With dead ends: 555 [2021-10-29 04:52:54,875 INFO L226 Difference]: Without dead ends: 333 [2021-10-29 04:52:54,876 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 04:52:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-10-29 04:52:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 277. [2021-10-29 04:52:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 2.641304347826087) internal successors, (729), 276 states have internal predecessors, (729), 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 04:52:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 729 transitions. [2021-10-29 04:52:54,893 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 729 transitions. Word has length 20 [2021-10-29 04:52:54,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:54,894 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 729 transitions. [2021-10-29 04:52:54,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:52:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 729 transitions. [2021-10-29 04:52:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:52:54,895 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:54,896 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 04:52:54,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 04:52:54,896 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:54,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:54,898 INFO L85 PathProgramCache]: Analyzing trace with hash -825232578, now seen corresponding path program 1 times [2021-10-29 04:52:54,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:54,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955453229] [2021-10-29 04:52:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:54,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:54,976 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 04:52:54,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:54,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955453229] [2021-10-29 04:52:54,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955453229] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:54,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:54,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:52:54,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115213503] [2021-10-29 04:52:54,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:52:54,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:54,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:52:54,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:52:54,980 INFO L87 Difference]: Start difference. First operand 277 states and 729 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 04:52:54,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:54,995 INFO L93 Difference]: Finished difference Result 357 states and 924 transitions. [2021-10-29 04:52:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:52:54,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 04:52:54,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:54,998 INFO L225 Difference]: With dead ends: 357 [2021-10-29 04:52:54,998 INFO L226 Difference]: Without dead ends: 101 [2021-10-29 04:52:54,999 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 04:52:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-29 04:52:55,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-10-29 04:52:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 2.27) internal successors, (227), 100 states have internal predecessors, (227), 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 04:52:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 227 transitions. [2021-10-29 04:52:55,002 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 227 transitions. Word has length 24 [2021-10-29 04:52:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:55,003 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 227 transitions. [2021-10-29 04:52:55,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 04:52:55,003 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 227 transitions. [2021-10-29 04:52:55,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:52:55,004 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:55,004 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 04:52:55,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 04:52:55,004 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:55,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:55,005 INFO L85 PathProgramCache]: Analyzing trace with hash 283272142, now seen corresponding path program 2 times [2021-10-29 04:52:55,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:55,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574482507] [2021-10-29 04:52:55,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:55,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:52:55,131 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 04:52:55,132 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:52:55,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574482507] [2021-10-29 04:52:55,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574482507] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:55,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:52:55,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 04:52:55,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140854395] [2021-10-29 04:52:55,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:52:55,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:52:55,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:52:55,134 INFO L87 Difference]: Start difference. First operand 101 states and 227 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 04:52:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:55,190 INFO L93 Difference]: Finished difference Result 119 states and 261 transitions. [2021-10-29 04:52:55,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:52:55,191 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 04:52:55,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:55,192 INFO L225 Difference]: With dead ends: 119 [2021-10-29 04:52:55,192 INFO L226 Difference]: Without dead ends: 61 [2021-10-29 04:52:55,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:52:55,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-29 04:52:55,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-29 04:52:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.85) internal successors, (111), 60 states have internal predecessors, (111), 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 04:52:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 111 transitions. [2021-10-29 04:52:55,195 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 111 transitions. Word has length 24 [2021-10-29 04:52:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:55,195 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 111 transitions. [2021-10-29 04:52:55,196 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 04:52:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 111 transitions. [2021-10-29 04:52:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:52:55,196 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:52:55,196 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 04:52:55,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 04:52:55,197 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-29 04:52:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:52:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1514888910, now seen corresponding path program 3 times [2021-10-29 04:52:55,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:52:55,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827120845] [2021-10-29 04:52:55,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:52:55,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:52:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:52:55,271 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:52:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:52:55,405 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:52:55,405 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:52:55,407 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:55,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:55,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 04:52:55,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 04:52:55,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 04:52:55,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-29 04:52:55,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:55,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 04:52:55,412 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:55,417 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 04:52:55,417 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:52:55,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:52:55 BasicIcfg [2021-10-29 04:52:55,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:52:55,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:52:55,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:52:55,581 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:52:55,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:52:44" (3/4) ... [2021-10-29 04:52:55,583 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:52:55,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:52:55,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:52:55,719 INFO L168 Benchmark]: Toolchain (without parser) took 13601.75 ms. Allocated memory was 104.9 MB in the beginning and 192.9 MB in the end (delta: 88.1 MB). Free memory was 60.5 MB in the beginning and 141.4 MB in the end (delta: -80.9 MB). Peak memory consumption was 100.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,719 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:52:55,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.52 ms. Allocated memory is still 104.9 MB. Free memory was 60.3 MB in the beginning and 67.1 MB in the end (delta: -6.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 104.9 MB. Free memory was 67.1 MB in the beginning and 64.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,721 INFO L168 Benchmark]: Boogie Preprocessor took 49.26 ms. Allocated memory is still 104.9 MB. Free memory was 64.5 MB in the beginning and 62.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,721 INFO L168 Benchmark]: RCFGBuilder took 1911.87 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 62.4 MB in the beginning and 98.5 MB in the end (delta: -36.1 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,722 INFO L168 Benchmark]: TraceAbstraction took 10626.90 ms. Allocated memory was 130.0 MB in the beginning and 192.9 MB in the end (delta: 62.9 MB). Free memory was 98.5 MB in the beginning and 59.8 MB in the end (delta: 38.7 MB). Peak memory consumption was 101.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,722 INFO L168 Benchmark]: Witness Printer took 136.54 ms. Allocated memory is still 192.9 MB. Free memory was 59.8 MB in the beginning and 141.4 MB in the end (delta: -81.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:55,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 776.52 ms. Allocated memory is still 104.9 MB. Free memory was 60.3 MB in the beginning and 67.1 MB in the end (delta: -6.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.47 ms. Allocated memory is still 104.9 MB. Free memory was 67.1 MB in the beginning and 64.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.26 ms. Allocated memory is still 104.9 MB. Free memory was 64.5 MB in the beginning and 62.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1911.87 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 62.4 MB in the beginning and 98.5 MB in the end (delta: -36.1 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10626.90 ms. Allocated memory was 130.0 MB in the beginning and 192.9 MB in the end (delta: 62.9 MB). Free memory was 98.5 MB in the beginning and 59.8 MB in the end (delta: 38.7 MB). Peak memory consumption was 101.5 MB. Max. memory is 16.1 GB. * Witness Printer took 136.54 ms. Allocated memory is still 192.9 MB. Free memory was 59.8 MB in the beginning and 141.4 MB in the end (delta: -81.6 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: 6.5s, 135 PlacesBefore, 43 PlacesAfterwards, 124 TransitionsBefore, 30 TransitionsAfterwards, 2568 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 106 TotalNumberOfCompositions, 5802 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3393, positive: 3224, positive conditional: 0, positive unconditional: 3224, negative: 169, negative conditional: 0, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1830, positive: 1774, positive conditional: 0, positive unconditional: 1774, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1830, positive: 1753, positive conditional: 0, positive unconditional: 1753, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 77, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 403, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 357, negative conditional: 0, negative unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3393, positive: 1450, positive conditional: 0, positive unconditional: 1450, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 1830, unknown conditional: 0, unknown unconditional: 1830] , Statistics on independence cache: Total cache size (in pairs): 205, Positive cache size: 178, Positive conditional cache size: 0, Positive unconditional cache size: 178, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - 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_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L724] 0 int z = 0; [L725] 0 _Bool z$flush_delayed; [L726] 0 int z$mem_tmp; [L727] 0 _Bool z$r_buff0_thd0; [L728] 0 _Bool z$r_buff0_thd1; [L729] 0 _Bool z$r_buff0_thd2; [L730] 0 _Bool z$r_buff0_thd3; [L731] 0 _Bool z$r_buff0_thd4; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd4; [L737] 0 _Bool z$read_delayed; [L738] 0 int *z$read_delayed_var; [L739] 0 int z$w_buff0; [L740] 0 _Bool z$w_buff0_used; [L741] 0 int z$w_buff1; [L742] 0 _Bool z$w_buff1_used; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1413; [L845] FCALL, FORK 0 pthread_create(&t1413, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L846] 0 pthread_t t1414; [L847] FCALL, FORK 0 pthread_create(&t1414, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1415; [L849] FCALL, FORK 0 pthread_create(&t1415, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1416; [L851] FCALL, FORK 0 pthread_create(&t1416, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L806] 4 z$w_buff1 = z$w_buff0 [L807] 4 z$w_buff0 = 1 [L808] 4 z$w_buff1_used = z$w_buff0_used [L809] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L811] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L812] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L813] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L814] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L815] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L816] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, 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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, 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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L763] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 2 return 0; [L778] 3 y = 2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L781] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L782] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L783] 3 z$flush_delayed = weak$$choice2 [L784] 3 z$mem_tmp = z [L785] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L785] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L786] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L786] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L787] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L787] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L788] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L788] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L789] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L789] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L790] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L790] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L791] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L791] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L792] 3 __unbuffered_p2_EAX = z [L793] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L793] 3 z = z$flush_delayed ? z$mem_tmp : z [L794] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=1, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L799] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L801] 3 return 0; [L822] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L822] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L823] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L823] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L824] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L825] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L826] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L858] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L859] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L860] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L861] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L864] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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=1, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - 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: 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. - UnprovableResult [Line: 845]: 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, 157 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 329 SDtfs, 357 SDslu, 522 SDs, 0 SdLazy, 213 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2002occurred in iteration=2, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1054 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 161 ConstructedInterpolants, 0 QuantifiedInterpolants, 811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 04:52:55,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19cf6f80-0b79-4121-9516-0353a9dc7c28/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...