./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8 --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 f82db1fc896aed5ecb6373b243828db91d4d79e4 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 07:28:14,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:28:14,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:28:14,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:28:14,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:28:14,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:28:14,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:28:14,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:28:14,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:28:14,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:28:14,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:28:14,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:28:14,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:28:14,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:28:14,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:28:14,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:28:14,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:28:14,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:28:14,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:28:14,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:28:14,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:28:14,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:28:14,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:28:14,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:28:14,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:28:14,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:28:14,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:28:14,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:28:14,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:28:14,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:28:14,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:28:14,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:28:14,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:28:14,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:28:14,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:28:14,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:28:14,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:28:14,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:28:14,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:28:14,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:28:14,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:28:14,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:28:14,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:28:14,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:28:14,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:28:14,827 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:28:14,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:28:14,827 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:28:14,827 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:28:14,827 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:28:14,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:28:14,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:28:14,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:28:14,828 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:28:14,829 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:28:14,829 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:28:14,829 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:28:14,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:28:14,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:28:14,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:28:14,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:28:14,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:28:14,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:28:14,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:28:14,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:28:14,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:28:14,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:28:14,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:28:14,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:28:14,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:28:14,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:28:14,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:28:14,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:28:14,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:28:14,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:28:14,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:28:14,834 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:28:14,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:28:14,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:28:14,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:28:14,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:28:14,835 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_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f82db1fc896aed5ecb6373b243828db91d4d79e4 [2021-10-13 07:28:15,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:28:15,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:28:15,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:28:15,102 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:28:15,103 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:28:15,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/pthread-wmm/mix029_power.opt.i [2021-10-13 07:28:15,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/data/4295c8566/d5aebf80956e4a59a662aaa8c996a776/FLAG8bcb61338 [2021-10-13 07:28:15,760 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:28:15,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/sv-benchmarks/c/pthread-wmm/mix029_power.opt.i [2021-10-13 07:28:15,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/data/4295c8566/d5aebf80956e4a59a662aaa8c996a776/FLAG8bcb61338 [2021-10-13 07:28:16,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/data/4295c8566/d5aebf80956e4a59a662aaa8c996a776 [2021-10-13 07:28:16,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:28:16,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:28:16,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:28:16,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:28:16,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:28:16,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8017d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16, skipping insertion in model container [2021-10-13 07:28:16,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:28:16,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:28:16,308 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_8de2d90b-5df2-404b-b6ce-53c74d800d06/sv-benchmarks/c/pthread-wmm/mix029_power.opt.i[950,963] [2021-10-13 07:28:16,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:28:16,538 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:28:16,550 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_8de2d90b-5df2-404b-b6ce-53c74d800d06/sv-benchmarks/c/pthread-wmm/mix029_power.opt.i[950,963] [2021-10-13 07:28:16,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:28:16,664 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:28:16,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16 WrapperNode [2021-10-13 07:28:16,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:28:16,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:28:16,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:28:16,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:28:16,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:28:16,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:28:16,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:28:16,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:28:16,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:28:16,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:28:16,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:28:16,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:28:16,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (1/1) ... [2021-10-13 07:28:16,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:28:16,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:28:16,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:28:16,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:28:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:28:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 07:28:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:28:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:28:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 07:28:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 07:28:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 07:28:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 07:28:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-13 07:28:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-13 07:28:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-13 07:28:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-13 07:28:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:28:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 07:28:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:28:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:28:16,857 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 07:28:18,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:28:18,793 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 07:28:18,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:28:18 BoogieIcfgContainer [2021-10-13 07:28:18,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:28:18,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:28:18,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:28:18,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:28:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:28:16" (1/3) ... [2021-10-13 07:28:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e94cd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:28:18, skipping insertion in model container [2021-10-13 07:28:18,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:16" (2/3) ... [2021-10-13 07:28:18,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e94cd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:28:18, skipping insertion in model container [2021-10-13 07:28:18,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:28:18" (3/3) ... [2021-10-13 07:28:18,809 INFO L111 eAbstractionObserver]: Analyzing ICFG mix029_power.opt.i [2021-10-13 07:28:18,814 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 07:28:18,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:28:18,815 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:28:18,815 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 07:28:18,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,865 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,870 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,882 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,882 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,882 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,882 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,883 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,884 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,886 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,886 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,887 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,888 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,888 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,889 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,889 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,889 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,889 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,896 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,896 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,896 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,896 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,902 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,902 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,902 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,902 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,903 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,903 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,903 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,903 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,903 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,905 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,911 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,915 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:28:18,916 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 07:28:18,958 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:28:18,963 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, mConcurrency=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 [2021-10-13 07:28:18,964 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-13 07:28:18,979 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 07:28:18,990 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 276 flow [2021-10-13 07:28:18,993 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 276 flow [2021-10-13 07:28:18,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 276 flow [2021-10-13 07:28:19,074 INFO L129 PetriNetUnfolder]: 2/124 cut-off events. [2021-10-13 07:28:19,074 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 07:28:19,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-13 07:28:19,083 INFO L116 LiptonReduction]: Number of co-enabled transitions 2928 [2021-10-13 07:28:29,040 INFO L131 LiptonReduction]: Checked pairs total: 7719 [2021-10-13 07:28:29,041 INFO L133 LiptonReduction]: Total number of compositions: 103 [2021-10-13 07:28:29,050 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 35 transitions, 90 flow [2021-10-13 07:28:29,295 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4130 states, 4127 states have (on average 4.1293918100315) internal successors, (17042), 4129 states have internal predecessors, (17042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 4130 states, 4127 states have (on average 4.1293918100315) internal successors, (17042), 4129 states have internal predecessors, (17042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:28:29,322 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:29,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:29,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:29,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:29,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1836158669, now seen corresponding path program 1 times [2021-10-13 07:28:29,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:29,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621545933] [2021-10-13 07:28:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:29,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:29,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:29,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621545933] [2021-10-13 07:28:29,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621545933] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:29,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:29,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 07:28:29,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994361153] [2021-10-13 07:28:29,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:28:29,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:28:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:28:29,719 INFO L87 Difference]: Start difference. First operand has 4130 states, 4127 states have (on average 4.1293918100315) internal successors, (17042), 4129 states have internal predecessors, (17042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:29,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:29,860 INFO L93 Difference]: Finished difference Result 3370 states and 13144 transitions. [2021-10-13 07:28:29,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:28:29,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 07:28:29,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:29,914 INFO L225 Difference]: With dead ends: 3370 [2021-10-13 07:28:29,915 INFO L226 Difference]: Without dead ends: 3250 [2021-10-13 07:28:29,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:28:29,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-10-13 07:28:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3250. [2021-10-13 07:28:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 3249 states have (on average 3.920590951061865) internal successors, (12738), 3249 states have internal predecessors, (12738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 12738 transitions. [2021-10-13 07:28:30,219 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 12738 transitions. Word has length 7 [2021-10-13 07:28:30,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:30,220 INFO L470 AbstractCegarLoop]: Abstraction has 3250 states and 12738 transitions. [2021-10-13 07:28:30,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 12738 transitions. [2021-10-13 07:28:30,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:28:30,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:30,226 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:30,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:28:30,227 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:30,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1967089732, now seen corresponding path program 1 times [2021-10-13 07:28:30,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:30,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280289145] [2021-10-13 07:28:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:30,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:30,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:30,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280289145] [2021-10-13 07:28:30,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280289145] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:30,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:30,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:28:30,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272324686] [2021-10-13 07:28:30,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:28:30,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:30,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:28:30,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:28:30,501 INFO L87 Difference]: Start difference. First operand 3250 states and 12738 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:30,698 INFO L93 Difference]: Finished difference Result 3786 states and 14376 transitions. [2021-10-13 07:28:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:28:30,698 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 [2021-10-13 07:28:30,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:30,737 INFO L225 Difference]: With dead ends: 3786 [2021-10-13 07:28:30,738 INFO L226 Difference]: Without dead ends: 3186 [2021-10-13 07:28:30,738 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2021-10-13 07:28:30,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 3186. [2021-10-13 07:28:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 3.90392464678179) internal successors, (12434), 3185 states have internal predecessors, (12434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 12434 transitions. [2021-10-13 07:28:30,894 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 12434 transitions. Word has length 12 [2021-10-13 07:28:30,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:30,895 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 12434 transitions. [2021-10-13 07:28:30,895 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) [2021-10-13 07:28:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 12434 transitions. [2021-10-13 07:28:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:28:30,902 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:30,902 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:30,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:28:30,903 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:30,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:30,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1367779434, now seen corresponding path program 1 times [2021-10-13 07:28:30,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:30,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600481246] [2021-10-13 07:28:30,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:30,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:31,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:31,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600481246] [2021-10-13 07:28:31,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600481246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:31,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:31,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:28:31,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660728183] [2021-10-13 07:28:31,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:28:31,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:31,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:28:31,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:28:31,043 INFO L87 Difference]: Start difference. First operand 3186 states and 12434 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:31,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:31,187 INFO L93 Difference]: Finished difference Result 3370 states and 12768 transitions. [2021-10-13 07:28:31,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:28:31,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 07:28:31,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:31,219 INFO L225 Difference]: With dead ends: 3370 [2021-10-13 07:28:31,219 INFO L226 Difference]: Without dead ends: 2818 [2021-10-13 07:28:31,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-10-13 07:28:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2818. [2021-10-13 07:28:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 3.850195243166489) internal successors, (10846), 2817 states have internal predecessors, (10846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 10846 transitions. [2021-10-13 07:28:31,342 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 10846 transitions. Word has length 13 [2021-10-13 07:28:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:31,342 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 10846 transitions. [2021-10-13 07:28:31,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 10846 transitions. [2021-10-13 07:28:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 07:28:31,347 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:31,347 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:31,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:28:31,348 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:31,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2026011286, now seen corresponding path program 1 times [2021-10-13 07:28:31,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:31,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996073809] [2021-10-13 07:28:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:31,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:31,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:31,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:31,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996073809] [2021-10-13 07:28:31,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996073809] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:31,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:31,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:28:31,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53134417] [2021-10-13 07:28:31,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:28:31,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:31,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:28:31,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:31,590 INFO L87 Difference]: Start difference. First operand 2818 states and 10846 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:31,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:31,755 INFO L93 Difference]: Finished difference Result 3210 states and 12064 transitions. [2021-10-13 07:28:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:28:31,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 07:28:31,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:31,788 INFO L225 Difference]: With dead ends: 3210 [2021-10-13 07:28:31,789 INFO L226 Difference]: Without dead ends: 2818 [2021-10-13 07:28:31,789 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:28:31,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-10-13 07:28:31,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2818. [2021-10-13 07:28:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 3.8274760383386583) internal successors, (10782), 2817 states have internal predecessors, (10782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 10782 transitions. [2021-10-13 07:28:31,930 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 10782 transitions. Word has length 15 [2021-10-13 07:28:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:31,931 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 10782 transitions. [2021-10-13 07:28:31,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 10782 transitions. [2021-10-13 07:28:31,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:28:31,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:31,937 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:31,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:28:31,937 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:31,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:31,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1866135553, now seen corresponding path program 1 times [2021-10-13 07:28:31,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:31,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163508610] [2021-10-13 07:28:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:31,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:32,147 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:32,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163508610] [2021-10-13 07:28:32,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163508610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:32,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:32,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:28:32,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289147051] [2021-10-13 07:28:32,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:28:32,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:32,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:28:32,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:32,150 INFO L87 Difference]: Start difference. First operand 2818 states and 10782 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:32,284 INFO L93 Difference]: Finished difference Result 3394 states and 12738 transitions. [2021-10-13 07:28:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:28:32,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 07:28:32,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:32,323 INFO L225 Difference]: With dead ends: 3394 [2021-10-13 07:28:32,323 INFO L226 Difference]: Without dead ends: 3098 [2021-10-13 07:28:32,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:28:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2021-10-13 07:28:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3002. [2021-10-13 07:28:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 3001 states have (on average 3.8080639786737756) internal successors, (11428), 3001 states have internal predecessors, (11428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 11428 transitions. [2021-10-13 07:28:32,452 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 11428 transitions. Word has length 16 [2021-10-13 07:28:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:32,452 INFO L470 AbstractCegarLoop]: Abstraction has 3002 states and 11428 transitions. [2021-10-13 07:28:32,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 11428 transitions. [2021-10-13 07:28:32,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:28:32,459 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:32,459 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:32,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:28:32,460 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:32,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1363264695, now seen corresponding path program 1 times [2021-10-13 07:28:32,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:32,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200712354] [2021-10-13 07:28:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:32,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:32,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:32,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200712354] [2021-10-13 07:28:32,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200712354] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:32,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:32,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:28:32,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071109841] [2021-10-13 07:28:32,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:28:32,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:28:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:28:32,605 INFO L87 Difference]: Start difference. First operand 3002 states and 11428 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:32,663 INFO L93 Difference]: Finished difference Result 2986 states and 10344 transitions. [2021-10-13 07:28:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:28:32,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 07:28:32,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:32,676 INFO L225 Difference]: With dead ends: 2986 [2021-10-13 07:28:32,676 INFO L226 Difference]: Without dead ends: 2282 [2021-10-13 07:28:32,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2021-10-13 07:28:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2021-10-13 07:28:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 3.431828145550197) internal successors, (7828), 2281 states have internal predecessors, (7828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 7828 transitions. [2021-10-13 07:28:32,766 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 7828 transitions. Word has length 17 [2021-10-13 07:28:32,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:32,766 INFO L470 AbstractCegarLoop]: Abstraction has 2282 states and 7828 transitions. [2021-10-13 07:28:32,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 7828 transitions. [2021-10-13 07:28:32,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:28:32,772 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:32,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:32,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:28:32,773 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:32,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:32,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1171923782, now seen corresponding path program 1 times [2021-10-13 07:28:32,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:32,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920547975] [2021-10-13 07:28:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:32,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:32,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:32,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920547975] [2021-10-13 07:28:32,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920547975] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:32,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:32,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:28:32,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606279380] [2021-10-13 07:28:32,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:28:32,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:28:32,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:32,863 INFO L87 Difference]: Start difference. First operand 2282 states and 7828 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:32,918 INFO L93 Difference]: Finished difference Result 1828 states and 5735 transitions. [2021-10-13 07:28:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:28:32,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 07:28:32,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:32,925 INFO L225 Difference]: With dead ends: 1828 [2021-10-13 07:28:32,925 INFO L226 Difference]: Without dead ends: 1400 [2021-10-13 07:28:32,925 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:28:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2021-10-13 07:28:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1400. [2021-10-13 07:28:33,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.073624017155111) internal successors, (4300), 1399 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 4300 transitions. [2021-10-13 07:28:33,020 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 4300 transitions. Word has length 18 [2021-10-13 07:28:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:33,021 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 4300 transitions. [2021-10-13 07:28:33,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 4300 transitions. [2021-10-13 07:28:33,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 07:28:33,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:33,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:33,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:28:33,026 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:33,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:33,026 INFO L82 PathProgramCache]: Analyzing trace with hash -30400417, now seen corresponding path program 1 times [2021-10-13 07:28:33,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:33,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122148991] [2021-10-13 07:28:33,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:33,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:33,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:33,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:33,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122148991] [2021-10-13 07:28:33,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122148991] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:33,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:33,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:28:33,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174293989] [2021-10-13 07:28:33,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:28:33,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:28:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:28:33,118 INFO L87 Difference]: Start difference. First operand 1400 states and 4300 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:33,172 INFO L93 Difference]: Finished difference Result 1165 states and 3558 transitions. [2021-10-13 07:28:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:28:33,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 07:28:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:33,177 INFO L225 Difference]: With dead ends: 1165 [2021-10-13 07:28:33,178 INFO L226 Difference]: Without dead ends: 1036 [2021-10-13 07:28:33,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:28:33,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-10-13 07:28:33,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 932. [2021-10-13 07:28:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 931 states have (on average 3.082706766917293) internal successors, (2870), 931 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 2870 transitions. [2021-10-13 07:28:33,212 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 2870 transitions. Word has length 21 [2021-10-13 07:28:33,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:33,212 INFO L470 AbstractCegarLoop]: Abstraction has 932 states and 2870 transitions. [2021-10-13 07:28:33,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 2870 transitions. [2021-10-13 07:28:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:28:33,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:33,216 INFO L512 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] [2021-10-13 07:28:33,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:28:33,217 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:33,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:33,217 INFO L82 PathProgramCache]: Analyzing trace with hash -901934991, now seen corresponding path program 1 times [2021-10-13 07:28:33,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:33,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118299613] [2021-10-13 07:28:33,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:33,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:33,302 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:33,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118299613] [2021-10-13 07:28:33,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118299613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:33,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:33,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:28:33,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988602807] [2021-10-13 07:28:33,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:28:33,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:33,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:28:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:33,305 INFO L87 Difference]: Start difference. First operand 932 states and 2870 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:33,341 INFO L93 Difference]: Finished difference Result 1216 states and 3648 transitions. [2021-10-13 07:28:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:28:33,342 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 [2021-10-13 07:28:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:33,346 INFO L225 Difference]: With dead ends: 1216 [2021-10-13 07:28:33,346 INFO L226 Difference]: Without dead ends: 938 [2021-10-13 07:28:33,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:28:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2021-10-13 07:28:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 932. [2021-10-13 07:28:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 931 states have (on average 3.0) internal successors, (2793), 931 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 2793 transitions. [2021-10-13 07:28:33,402 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 2793 transitions. Word has length 24 [2021-10-13 07:28:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:33,402 INFO L470 AbstractCegarLoop]: Abstraction has 932 states and 2793 transitions. [2021-10-13 07:28:33,403 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) [2021-10-13 07:28:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 2793 transitions. [2021-10-13 07:28:33,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:28:33,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:33,407 INFO L512 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] [2021-10-13 07:28:33,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 07:28:33,407 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:33,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:33,408 INFO L82 PathProgramCache]: Analyzing trace with hash 2119120273, now seen corresponding path program 2 times [2021-10-13 07:28:33,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:33,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297741370] [2021-10-13 07:28:33,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:33,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:33,524 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:33,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297741370] [2021-10-13 07:28:33,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297741370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:33,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:33,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:28:33,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68030481] [2021-10-13 07:28:33,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:28:33,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:28:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:28:33,527 INFO L87 Difference]: Start difference. First operand 932 states and 2793 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:33,589 INFO L93 Difference]: Finished difference Result 888 states and 2704 transitions. [2021-10-13 07:28:33,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:28:33,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 07:28:33,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:33,592 INFO L225 Difference]: With dead ends: 888 [2021-10-13 07:28:33,593 INFO L226 Difference]: Without dead ends: 459 [2021-10-13 07:28:33,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:28:33,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-10-13 07:28:33,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 443. [2021-10-13 07:28:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 2.841628959276018) internal successors, (1256), 442 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1256 transitions. [2021-10-13 07:28:33,611 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1256 transitions. Word has length 24 [2021-10-13 07:28:33,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:33,611 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1256 transitions. [2021-10-13 07:28:33,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:33,612 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1256 transitions. [2021-10-13 07:28:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:28:33,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:33,614 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:33,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 07:28:33,615 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:33,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1598300554, now seen corresponding path program 1 times [2021-10-13 07:28:33,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:33,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617013390] [2021-10-13 07:28:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:33,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:33,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:33,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617013390] [2021-10-13 07:28:33,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617013390] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:33,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:33,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:28:33,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353062029] [2021-10-13 07:28:33,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 07:28:33,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:33,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 07:28:33,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:28:33,808 INFO L87 Difference]: Start difference. First operand 443 states and 1256 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:34,137 INFO L93 Difference]: Finished difference Result 814 states and 2230 transitions. [2021-10-13 07:28:34,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 07:28:34,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 07:28:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:34,140 INFO L225 Difference]: With dead ends: 814 [2021-10-13 07:28:34,140 INFO L226 Difference]: Without dead ends: 288 [2021-10-13 07:28:34,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 183.5ms TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:28:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-13 07:28:34,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 215. [2021-10-13 07:28:34,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 2.542056074766355) internal successors, (544), 214 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 544 transitions. [2021-10-13 07:28:34,149 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 544 transitions. Word has length 28 [2021-10-13 07:28:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:34,150 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 544 transitions. [2021-10-13 07:28:34,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 544 transitions. [2021-10-13 07:28:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:28:34,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:34,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:34,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 07:28:34,152 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:34,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:34,153 INFO L82 PathProgramCache]: Analyzing trace with hash 217261816, now seen corresponding path program 2 times [2021-10-13 07:28:34,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:34,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649284697] [2021-10-13 07:28:34,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:34,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:28:34,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:28:34,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649284697] [2021-10-13 07:28:34,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649284697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:34,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:34,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:28:34,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314956625] [2021-10-13 07:28:34,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:28:34,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:28:34,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:28:34,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:28:34,421 INFO L87 Difference]: Start difference. First operand 215 states and 544 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:34,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:34,592 INFO L93 Difference]: Finished difference Result 254 states and 631 transitions. [2021-10-13 07:28:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:28:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-13 07:28:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:34,593 INFO L225 Difference]: With dead ends: 254 [2021-10-13 07:28:34,593 INFO L226 Difference]: Without dead ends: 169 [2021-10-13 07:28:34,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 117.4ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:28:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-13 07:28:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-10-13 07:28:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 2.4761904761904763) internal successors, (416), 168 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 416 transitions. [2021-10-13 07:28:34,598 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 416 transitions. Word has length 28 [2021-10-13 07:28:34,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:34,598 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 416 transitions. [2021-10-13 07:28:34,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 416 transitions. [2021-10-13 07:28:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:28:34,599 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:34,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:34,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 07:28:34,600 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-13 07:28:34,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:34,601 INFO L82 PathProgramCache]: Analyzing trace with hash 740086046, now seen corresponding path program 3 times [2021-10-13 07:28:34,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:28:34,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526527004] [2021-10-13 07:28:34,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:34,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:28:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:28:34,676 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:28:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:28:34,778 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:28:34,779 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:28:34,780 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:34,781 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:34,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 07:28:34,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 07:28:34,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 07:28:34,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-13 07:28:34,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:34,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 07:28:34,789 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 07:28:34,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:28:34,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:28:34 BasicIcfg [2021-10-13 07:28:34,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:28:34,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:28:34,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:28:34,940 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:28:34,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:28:18" (3/4) ... [2021-10-13 07:28:34,942 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:28:35,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:28:35,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:28:35,068 INFO L168 Benchmark]: Toolchain (without parser) took 19021.37 ms. Allocated memory was 98.6 MB in the beginning and 390.1 MB in the end (delta: 291.5 MB). Free memory was 64.6 MB in the beginning and 237.6 MB in the end (delta: -172.9 MB). Peak memory consumption was 117.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:28:35,069 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:28:35,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.82 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 60.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:28:35,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.63 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 57.6 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:28:35,070 INFO L168 Benchmark]: Boogie Preprocessor took 43.51 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 55.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:28:35,070 INFO L168 Benchmark]: RCFGBuilder took 2025.33 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 60.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:28:35,071 INFO L168 Benchmark]: TraceAbstraction took 16140.30 ms. Allocated memory was 123.7 MB in the beginning and 390.1 MB in the end (delta: 266.3 MB). Free memory was 60.4 MB in the beginning and 257.5 MB in the end (delta: -197.1 MB). Peak memory consumption was 69.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:28:35,071 INFO L168 Benchmark]: Witness Printer took 127.32 ms. Allocated memory is still 390.1 MB. Free memory was 257.5 MB in the beginning and 237.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:28:35,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.82 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 60.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.63 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 57.6 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.51 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 55.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2025.33 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 60.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16140.30 ms. Allocated memory was 123.7 MB in the beginning and 390.1 MB in the end (delta: 266.3 MB). Free memory was 60.4 MB in the beginning and 257.5 MB in the end (delta: -197.1 MB). Peak memory consumption was 69.3 MB. Max. memory is 16.1 GB. * Witness Printer took 127.32 ms. Allocated memory is still 390.1 MB. Free memory was 257.5 MB in the beginning and 237.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10048.2ms, 139 PlacesBefore, 47 PlacesAfterwards, 128 TransitionsBefore, 35 TransitionsAfterwards, 2928 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 7719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3694, positive: 3481, positive conditional: 0, positive unconditional: 3481, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1955, positive: 1894, positive conditional: 0, positive unconditional: 1894, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1955, positive: 1866, positive conditional: 0, positive unconditional: 1866, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 789, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 714, negative conditional: 0, negative unconditional: 714, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3694, positive: 1587, positive conditional: 0, positive unconditional: 1587, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 1955, unknown conditional: 0, unknown unconditional: 1955] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 189, Positive conditional cache size: 0, Positive unconditional cache size: 189, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L846] 0 pthread_t t773; [L847] FCALL, FORK 0 pthread_create(&t773, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t774; [L849] FCALL, FORK 0 pthread_create(&t774, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t775; [L851] FCALL, FORK 0 pthread_create(&t775, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L852] 0 pthread_t t776; [L853] FCALL, FORK 0 pthread_create(&t776, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L815] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 164 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 15829.8ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 75.1ms, AutomataDifference: 1835.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10331.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 482 SDtfs, 692 SDslu, 1020 SDs, 0 SdLazy, 421 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 559.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 477.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4130occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1141.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 295 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 70.2ms SsaConstructionTime, 852.6ms SatisfiabilityAnalysisTime, 1115.8ms InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 07:28:35,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de2d90b-5df2-404b-b6ce-53c74d800d06/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...