./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan --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 09a1266157d998d2610cfd53337416f404ae76b2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:31:59,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:31:59,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:31:59,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:31:59,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:31:59,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:31:59,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:31:59,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:31:59,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:31:59,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:31:59,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:31:59,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:31:59,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:31:59,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:31:59,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:31:59,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:31:59,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:31:59,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:31:59,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:31:59,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:31:59,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:31:59,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:31:59,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:31:59,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:31:59,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:31:59,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:31:59,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:31:59,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:31:59,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:31:59,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:31:59,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:31:59,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:31:59,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:31:59,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:31:59,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:31:59,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:31:59,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:31:59,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:31:59,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:31:59,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:31:59,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:31:59,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:31:59,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:31:59,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:31:59,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:31:59,794 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:31:59,794 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:31:59,795 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:31:59,795 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:31:59,795 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:31:59,795 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:31:59,796 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:31:59,797 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:31:59,797 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:31:59,797 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:31:59,798 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:31:59,798 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:31:59,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:31:59,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:31:59,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:31:59,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:31:59,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:31:59,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:31:59,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:31:59,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:31:59,801 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:31:59,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:31:59,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:31:59,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:31:59,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:31:59,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:31:59,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:31:59,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:59,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:31:59,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:31:59,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:31:59,804 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:31:59,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:31:59,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:31:59,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:31:59,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:31:59,805 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-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09a1266157d998d2610cfd53337416f404ae76b2 [2020-12-03 12:32:00,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:32:00,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:32:00,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:32:00,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:32:00,115 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:32:00,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i [2020-12-03 12:32:00,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/data/7c6616faf/1b04fe2a1bfe4453879b67e8cc36d01a/FLAG503fdecb8 [2020-12-03 12:32:00,792 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:32:00,795 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i [2020-12-03 12:32:00,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/data/7c6616faf/1b04fe2a1bfe4453879b67e8cc36d01a/FLAG503fdecb8 [2020-12-03 12:32:01,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/data/7c6616faf/1b04fe2a1bfe4453879b67e8cc36d01a [2020-12-03 12:32:01,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:32:01,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:32:01,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:32:01,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:32:01,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:32:01,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2a64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01, skipping insertion in model container [2020-12-03 12:32:01,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:32:01,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:32:01,398 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i[949,962] [2020-12-03 12:32:01,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:32:01,625 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:32:01,638 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i[949,962] [2020-12-03 12:32:01,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:32:01,774 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:32:01,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01 WrapperNode [2020-12-03 12:32:01,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:32:01,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:32:01,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:32:01,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:32:01,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:32:01,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:32:01,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:32:01,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:32:01,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... [2020-12-03 12:32:01,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:32:01,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:32:01,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:32:01,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:32:01,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:32:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:32:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-03 12:32:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:32:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:32:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-03 12:32:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-03 12:32:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-03 12:32:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-03 12:32:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-03 12:32:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-03 12:32:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-03 12:32:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-03 12:32:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:32:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-03 12:32:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:32:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:32:01,947 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-03 12:32:02,478 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:32:02,478 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-03 12:32:02,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:02 BoogieIcfgContainer [2020-12-03 12:32:02,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:32:02,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:32:02,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:32:02,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:32:02,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:32:01" (1/3) ... [2020-12-03 12:32:02,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efe2dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:32:02, skipping insertion in model container [2020-12-03 12:32:02,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:01" (2/3) ... [2020-12-03 12:32:02,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efe2dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:32:02, skipping insertion in model container [2020-12-03 12:32:02,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:02" (3/3) ... [2020-12-03 12:32:02,497 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-12-03 12:32:02,520 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-03 12:32:02,521 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:32:02,525 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:32:02,526 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-03 12:32:02,568 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,568 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,569 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,569 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,570 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,577 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,580 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,581 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,581 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,582 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,582 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,582 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,583 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,583 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,585 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,585 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,586 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,586 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,590 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,595 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,595 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,598 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,598 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,599 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:32:02,601 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-03 12:32:02,615 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-03 12:32:02,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:32:02,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:32:02,642 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:32:02,643 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:32:02,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:32:02,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:32:02,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:32:02,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:32:02,659 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-03 12:32:02,662 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 202 flow [2020-12-03 12:32:02,666 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 202 flow [2020-12-03 12:32:02,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2020-12-03 12:32:02,741 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2020-12-03 12:32:02,742 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-03 12:32:02,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2020-12-03 12:32:02,760 INFO L116 LiptonReduction]: Number of co-enabled transitions 2064 [2020-12-03 12:32:06,375 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-03 12:32:06,794 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-03 12:32:07,073 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-03 12:32:07,189 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-03 12:32:07,202 INFO L131 LiptonReduction]: Checked pairs total: 4338 [2020-12-03 12:32:07,203 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-12-03 12:32:07,208 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-12-03 12:32:07,318 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-12-03 12:32:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-12-03 12:32:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:32:07,330 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:07,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:07,331 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:07,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:07,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1256759632, now seen corresponding path program 1 times [2020-12-03 12:32:07,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:07,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206817082] [2020-12-03 12:32:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:07,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206817082] [2020-12-03 12:32:07,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:07,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:32:07,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548703562] [2020-12-03 12:32:07,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 12:32:07,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:07,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 12:32:07,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 12:32:07,541 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-12-03 12:32:07,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:07,615 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-12-03 12:32:07,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 12:32:07,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-03 12:32:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:07,659 INFO L225 Difference]: With dead ends: 1450 [2020-12-03 12:32:07,659 INFO L226 Difference]: Without dead ends: 1194 [2020-12-03 12:32:07,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 12:32:07,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-12-03 12:32:07,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-12-03 12:32:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-12-03 12:32:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-12-03 12:32:07,864 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-12-03 12:32:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:07,865 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-12-03 12:32:07,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 12:32:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-12-03 12:32:07,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:32:07,877 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:07,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:07,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:32:07,878 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:07,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:07,884 INFO L82 PathProgramCache]: Analyzing trace with hash -304847029, now seen corresponding path program 1 times [2020-12-03 12:32:07,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:07,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262154301] [2020-12-03 12:32:07,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:08,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262154301] [2020-12-03 12:32:08,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:08,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:32:08,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966060098] [2020-12-03 12:32:08,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:32:08,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:08,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:32:08,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:32:08,175 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-12-03 12:32:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:08,254 INFO L93 Difference]: Finished difference Result 1448 states and 5111 transitions. [2020-12-03 12:32:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:08,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-03 12:32:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:08,268 INFO L225 Difference]: With dead ends: 1448 [2020-12-03 12:32:08,268 INFO L226 Difference]: Without dead ends: 1192 [2020-12-03 12:32:08,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2020-12-03 12:32:08,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2020-12-03 12:32:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-12-03 12:32:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 4342 transitions. [2020-12-03 12:32:08,392 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 4342 transitions. Word has length 11 [2020-12-03 12:32:08,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:08,393 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 4342 transitions. [2020-12-03 12:32:08,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 4342 transitions. [2020-12-03 12:32:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:32:08,395 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:08,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:08,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:32:08,396 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:08,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:08,397 INFO L82 PathProgramCache]: Analyzing trace with hash -835567243, now seen corresponding path program 1 times [2020-12-03 12:32:08,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:08,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475364426] [2020-12-03 12:32:08,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:08,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475364426] [2020-12-03 12:32:08,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:08,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:32:08,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718952065] [2020-12-03 12:32:08,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:08,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:08,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:08,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:08,550 INFO L87 Difference]: Start difference. First operand 1192 states and 4342 transitions. Second operand 5 states. [2020-12-03 12:32:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:08,626 INFO L93 Difference]: Finished difference Result 1318 states and 4624 transitions. [2020-12-03 12:32:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:08,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-03 12:32:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:08,638 INFO L225 Difference]: With dead ends: 1318 [2020-12-03 12:32:08,639 INFO L226 Difference]: Without dead ends: 1066 [2020-12-03 12:32:08,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:08,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-12-03 12:32:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-12-03 12:32:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-12-03 12:32:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-12-03 12:32:08,695 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 12 [2020-12-03 12:32:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:08,695 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-12-03 12:32:08,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-12-03 12:32:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:32:08,699 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:08,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:08,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:32:08,702 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:08,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:08,703 INFO L82 PathProgramCache]: Analyzing trace with hash -862200397, now seen corresponding path program 1 times [2020-12-03 12:32:08,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:08,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275176390] [2020-12-03 12:32:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:08,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275176390] [2020-12-03 12:32:08,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:08,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:32:08,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897043250] [2020-12-03 12:32:08,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:08,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:08,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:08,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:08,835 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 5 states. [2020-12-03 12:32:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:08,969 INFO L93 Difference]: Finished difference Result 1927 states and 6692 transitions. [2020-12-03 12:32:08,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-03 12:32:08,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-03 12:32:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:08,983 INFO L225 Difference]: With dead ends: 1927 [2020-12-03 12:32:08,983 INFO L226 Difference]: Without dead ends: 1384 [2020-12-03 12:32:08,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:08,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-12-03 12:32:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2020-12-03 12:32:09,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-12-03 12:32:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 4860 transitions. [2020-12-03 12:32:09,052 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 4860 transitions. Word has length 12 [2020-12-03 12:32:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,052 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 4860 transitions. [2020-12-03 12:32:09,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 4860 transitions. [2020-12-03 12:32:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:32:09,055 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:32:09,055 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,057 INFO L82 PathProgramCache]: Analyzing trace with hash -959570637, now seen corresponding path program 1 times [2020-12-03 12:32:09,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585196666] [2020-12-03 12:32:09,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:09,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585196666] [2020-12-03 12:32:09,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:09,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:09,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261945227] [2020-12-03 12:32:09,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:09,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:09,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:09,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:09,239 INFO L87 Difference]: Start difference. First operand 1384 states and 4860 transitions. Second operand 6 states. [2020-12-03 12:32:09,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:09,327 INFO L93 Difference]: Finished difference Result 1579 states and 5434 transitions. [2020-12-03 12:32:09,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:09,328 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-03 12:32:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:09,334 INFO L225 Difference]: With dead ends: 1579 [2020-12-03 12:32:09,334 INFO L226 Difference]: Without dead ends: 556 [2020-12-03 12:32:09,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:09,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-12-03 12:32:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2020-12-03 12:32:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-12-03 12:32:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1826 transitions. [2020-12-03 12:32:09,362 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1826 transitions. Word has length 13 [2020-12-03 12:32:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,363 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 1826 transitions. [2020-12-03 12:32:09,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1826 transitions. [2020-12-03 12:32:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:32:09,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:32:09,365 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,366 INFO L82 PathProgramCache]: Analyzing trace with hash 638958007, now seen corresponding path program 1 times [2020-12-03 12:32:09,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286006447] [2020-12-03 12:32:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:09,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286006447] [2020-12-03 12:32:09,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:09,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:09,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676084307] [2020-12-03 12:32:09,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:09,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:09,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:09,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:09,472 INFO L87 Difference]: Start difference. First operand 556 states and 1826 transitions. Second operand 6 states. [2020-12-03 12:32:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:09,544 INFO L93 Difference]: Finished difference Result 700 states and 2230 transitions. [2020-12-03 12:32:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:09,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-03 12:32:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:09,548 INFO L225 Difference]: With dead ends: 700 [2020-12-03 12:32:09,549 INFO L226 Difference]: Without dead ends: 316 [2020-12-03 12:32:09,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-12-03 12:32:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2020-12-03 12:32:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-12-03 12:32:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 934 transitions. [2020-12-03 12:32:09,564 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 934 transitions. Word has length 14 [2020-12-03 12:32:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,565 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 934 transitions. [2020-12-03 12:32:09,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 934 transitions. [2020-12-03 12:32:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:32:09,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:32:09,567 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,570 INFO L82 PathProgramCache]: Analyzing trace with hash 2113265253, now seen corresponding path program 1 times [2020-12-03 12:32:09,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918097318] [2020-12-03 12:32:09,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:09,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918097318] [2020-12-03 12:32:09,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:09,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:32:09,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851311443] [2020-12-03 12:32:09,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:09,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:09,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:09,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:09,689 INFO L87 Difference]: Start difference. First operand 316 states and 934 transitions. Second operand 5 states. [2020-12-03 12:32:09,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:09,731 INFO L93 Difference]: Finished difference Result 340 states and 974 transitions. [2020-12-03 12:32:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:09,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-03 12:32:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:09,735 INFO L225 Difference]: With dead ends: 340 [2020-12-03 12:32:09,736 INFO L226 Difference]: Without dead ends: 292 [2020-12-03 12:32:09,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-12-03 12:32:09,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-12-03 12:32:09,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-12-03 12:32:09,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-12-03 12:32:09,752 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-12-03 12:32:09,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,753 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-12-03 12:32:09,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-12-03 12:32:09,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:32:09,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-03 12:32:09,756 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1420368766, now seen corresponding path program 1 times [2020-12-03 12:32:09,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363571575] [2020-12-03 12:32:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:09,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363571575] [2020-12-03 12:32:09,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:09,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:09,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923252498] [2020-12-03 12:32:09,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:09,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:09,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:09,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:09,871 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 6 states. [2020-12-03 12:32:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:09,934 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-12-03 12:32:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:09,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 12:32:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:09,937 INFO L225 Difference]: With dead ends: 352 [2020-12-03 12:32:09,937 INFO L226 Difference]: Without dead ends: 154 [2020-12-03 12:32:09,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-03 12:32:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-12-03 12:32:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-03 12:32:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-12-03 12:32:09,951 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-12-03 12:32:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,951 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-12-03 12:32:09,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-12-03 12:32:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-03 12:32:09,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-03 12:32:09,953 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,954 INFO L82 PathProgramCache]: Analyzing trace with hash -673573280, now seen corresponding path program 1 times [2020-12-03 12:32:09,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857629923] [2020-12-03 12:32:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:10,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857629923] [2020-12-03 12:32:10,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:10,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:10,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433559825] [2020-12-03 12:32:10,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:10,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:10,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:10,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:10,060 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 6 states. [2020-12-03 12:32:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:10,113 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-12-03 12:32:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:10,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-03 12:32:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:10,114 INFO L225 Difference]: With dead ends: 130 [2020-12-03 12:32:10,114 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:32:10,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:32:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:32:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:32:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:32:10,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-03 12:32:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:10,116 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:32:10,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:32:10,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:32:10,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-03 12:32:10,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:32:10 BasicIcfg [2020-12-03 12:32:10,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:32:10,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:32:10,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:32:10,122 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:32:10,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:02" (3/4) ... [2020-12-03 12:32:10,126 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:32:10,136 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-03 12:32:10,136 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-03 12:32:10,136 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-03 12:32:10,136 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-12-03 12:32:10,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-03 12:32:10,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-03 12:32:10,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:32:10,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:32:10,199 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_141b5d99-4a60-4e8c-9fdf-6dd0e140c39c/bin/utaipan/witness.graphml [2020-12-03 12:32:10,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:32:10,205 INFO L168 Benchmark]: Toolchain (without parser) took 9101.85 ms. Allocated memory was 92.3 MB in the beginning and 190.8 MB in the end (delta: 98.6 MB). Free memory was 65.4 MB in the beginning and 129.6 MB in the end (delta: -64.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,205 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:10,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.92 ms. Allocated memory is still 92.3 MB. Free memory was 65.2 MB in the beginning and 47.3 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 92.3 MB. Free memory was 47.3 MB in the beginning and 45.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,209 INFO L168 Benchmark]: Boogie Preprocessor took 30.56 ms. Allocated memory is still 92.3 MB. Free memory was 45.5 MB in the beginning and 44.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,210 INFO L168 Benchmark]: RCFGBuilder took 626.60 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 43.9 MB in the beginning and 86.5 MB in the end (delta: -42.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,211 INFO L168 Benchmark]: TraceAbstraction took 7637.29 ms. Allocated memory was 123.7 MB in the beginning and 190.8 MB in the end (delta: 67.1 MB). Free memory was 86.0 MB in the beginning and 132.7 MB in the end (delta: -46.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,211 INFO L168 Benchmark]: Witness Printer took 82.08 ms. Allocated memory is still 190.8 MB. Free memory was 132.7 MB in the beginning and 129.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:10,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 670.92 ms. Allocated memory is still 92.3 MB. Free memory was 65.2 MB in the beginning and 47.3 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 92.3 MB. Free memory was 47.3 MB in the beginning and 45.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.56 ms. Allocated memory is still 92.3 MB. Free memory was 45.5 MB in the beginning and 44.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 626.60 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 43.9 MB in the beginning and 86.5 MB in the end (delta: -42.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7637.29 ms. Allocated memory was 123.7 MB in the beginning and 190.8 MB in the end (delta: 67.1 MB). Free memory was 86.0 MB in the beginning and 132.7 MB in the end (delta: -46.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * Witness Printer took 82.08 ms. Allocated memory is still 190.8 MB. Free memory was 132.7 MB in the beginning and 129.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1519 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 102 PlacesBefore, 41 PlacesAfterwards, 91 TransitionsBefore, 29 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 4338 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 273 SDtfs, 376 SDslu, 456 SDs, 0 SdLazy, 106 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 8206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 correct! Received shutdown request...