./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/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 f763a5d4c189207439abe0c71312c5d6ad9fe87e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:03:27,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:03:27,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:03:27,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:03:27,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:03:27,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:03:27,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:03:27,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:03:27,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:03:27,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:03:27,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:03:27,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:03:27,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:03:27,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:03:27,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:03:27,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:03:27,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:03:27,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:03:27,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:03:27,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:03:27,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:03:27,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:03:27,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:03:27,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:03:27,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:03:27,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:03:27,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:03:27,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:03:27,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:03:27,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:03:27,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:03:27,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:03:27,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:03:27,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:03:27,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:03:27,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:03:27,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:03:27,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:03:27,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:03:27,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:03:27,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:03:27,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:03:27,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:03:27,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:03:27,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:03:27,931 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:03:27,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:03:27,931 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:03:27,931 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:03:27,931 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:03:27,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:03:27,932 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:03:27,932 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:03:27,932 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:03:27,932 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:03:27,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:03:27,933 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:03:27,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:03:27,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:03:27,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:03:27,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:03:27,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:03:27,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:03:27,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:03:27,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:03:27,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:03:27,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:03:27,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:03:27,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:03:27,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:03:27,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:03:27,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:03:27,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:03:27,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:27,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:03:27,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:03:27,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:03:27,937 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:03:27,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:03:27,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:03:27,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:03:27,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:03:27,938 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_8e4872ab-8783-4097-abe1-40ffe3a77817/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f763a5d4c189207439abe0c71312c5d6ad9fe87e [2020-11-22 13:03:28,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:03:28,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:03:28,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:03:28,206 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:03:28,208 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:03:28,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i [2020-11-22 13:03:28,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/data/fc8748173/bfe6ff2e62a34925a7c5d25ec1144554/FLAGe23380550 [2020-11-22 13:03:28,808 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:03:28,810 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i [2020-11-22 13:03:28,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/data/fc8748173/bfe6ff2e62a34925a7c5d25ec1144554/FLAGe23380550 [2020-11-22 13:03:29,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/data/fc8748173/bfe6ff2e62a34925a7c5d25ec1144554 [2020-11-22 13:03:29,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:03:29,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:03:29,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:29,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:03:29,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:03:29,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5502d78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29, skipping insertion in model container [2020-11-22 13:03:29,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:03:29,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:03:29,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:29,615 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:03:29,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:29,745 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:03:29,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29 WrapperNode [2020-11-22 13:03:29,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:29,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:29,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:03:29,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:03:29,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:29,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:03:29,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:03:29,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:03:29,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... [2020-11-22 13:03:29,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:03:29,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:03:29,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:03:29,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:03:29,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/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 [2020-11-22 13:03:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:03:29,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-22 13:03:29,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:03:29,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:03:29,884 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-22 13:03:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-22 13:03:29,884 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-22 13:03:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-22 13:03:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-22 13:03:29,885 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-22 13:03:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:03:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-22 13:03:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:03:29,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:03:29,887 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-22 13:03:30,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:03:30,317 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-22 13:03:30,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:30 BoogieIcfgContainer [2020-11-22 13:03:30,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:03:30,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:03:30,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:03:30,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:03:30,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:03:29" (1/3) ... [2020-11-22 13:03:30,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ffdde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:03:30, skipping insertion in model container [2020-11-22 13:03:30,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:29" (2/3) ... [2020-11-22 13:03:30,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ffdde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:03:30, skipping insertion in model container [2020-11-22 13:03:30,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:30" (3/3) ... [2020-11-22 13:03:30,326 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-11-22 13:03:30,335 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-22 13:03:30,336 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:03:30,340 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:03:30,341 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-22 13:03:30,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,368 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,368 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,371 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,371 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,375 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,376 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,376 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:03:30,381 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-22 13:03:30,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:03:30,411 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:03:30,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:03:30,412 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:03:30,412 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:03:30,412 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:03:30,412 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:03:30,412 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:03:30,412 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:03:30,422 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-22 13:03:30,424 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-22 13:03:30,427 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-22 13:03:30,429 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-22 13:03:30,471 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-22 13:03:30,471 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-22 13:03:30,475 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-22 13:03:30,478 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-22 13:03:31,864 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-22 13:03:32,794 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-22 13:03:33,069 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-11-22 13:03:33,070 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-22 13:03:33,073 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-11-22 13:03:33,093 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-22 13:03:33,095 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-22 13:03:33,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:03:33,100 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:33,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:33,101 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:33,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-11-22 13:03:33,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:03:33,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004955040] [2020-11-22 13:03:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:03:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:03:33,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004955040] [2020-11-22 13:03:33,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:33,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:03:33,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305509545] [2020-11-22 13:03:33,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:03:33,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:03:33,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:03:33,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:03:33,397 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-11-22 13:03:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:33,464 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-11-22 13:03:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:03:33,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-22 13:03:33,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:33,484 INFO L225 Difference]: With dead ends: 281 [2020-11-22 13:03:33,484 INFO L226 Difference]: Without dead ends: 180 [2020-11-22 13:03:33,490 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 [2020-11-22 13:03:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-22 13:03:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-22 13:03:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-22 13:03:33,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-11-22 13:03:33,570 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-11-22 13:03:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:33,571 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-11-22 13:03:33,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:03:33,572 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-11-22 13:03:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:03:33,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:33,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:33,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:03:33,581 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:33,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:33,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-11-22 13:03:33,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:03:33,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737997314] [2020-11-22 13:03:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:03:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:03:33,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737997314] [2020-11-22 13:03:33,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:33,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:03:33,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164092741] [2020-11-22 13:03:33,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:03:33,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:03:33,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:03:33,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:03:33,701 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-11-22 13:03:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:33,755 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-11-22 13:03:33,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:03:33,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-22 13:03:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:33,758 INFO L225 Difference]: With dead ends: 163 [2020-11-22 13:03:33,758 INFO L226 Difference]: Without dead ends: 126 [2020-11-22 13:03:33,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:03:33,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-22 13:03:33,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-22 13:03:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-22 13:03:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-11-22 13:03:33,767 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-11-22 13:03:33,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:33,768 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-11-22 13:03:33,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:03:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-11-22 13:03:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:03:33,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:33,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:33,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:03:33,769 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:33,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-11-22 13:03:33,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:03:33,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054703298] [2020-11-22 13:03:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:03:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:03:33,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054703298] [2020-11-22 13:03:33,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:33,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:03:33,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392910785] [2020-11-22 13:03:33,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:03:33,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:03:33,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:03:33,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:03:33,923 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-11-22 13:03:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:34,029 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-22 13:03:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:03:34,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-22 13:03:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:34,030 INFO L225 Difference]: With dead ends: 118 [2020-11-22 13:03:34,031 INFO L226 Difference]: Without dead ends: 108 [2020-11-22 13:03:34,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:03:34,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-22 13:03:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-22 13:03:34,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-22 13:03:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-22 13:03:34,037 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-22 13:03:34,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:34,038 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-22 13:03:34,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:03:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-22 13:03:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:03:34,039 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:34,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:34,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:03:34,039 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:34,040 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-11-22 13:03:34,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:03:34,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918451620] [2020-11-22 13:03:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:03:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:03:34,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918451620] [2020-11-22 13:03:34,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:34,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:03:34,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829206238] [2020-11-22 13:03:34,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:03:34,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:03:34,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:03:34,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:03:34,123 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-22 13:03:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:34,145 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-22 13:03:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:03:34,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:03:34,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:34,158 INFO L225 Difference]: With dead ends: 133 [2020-11-22 13:03:34,158 INFO L226 Difference]: Without dead ends: 54 [2020-11-22 13:03:34,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:03:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-22 13:03:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-22 13:03:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-22 13:03:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-22 13:03:34,162 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-22 13:03:34,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:34,162 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-22 13:03:34,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:03:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-22 13:03:34,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:03:34,163 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:34,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:34,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:03:34,163 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:34,164 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-11-22 13:03:34,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:03:34,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951797672] [2020-11-22 13:03:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:03:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:03:34,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951797672] [2020-11-22 13:03:34,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:34,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:03:34,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787067856] [2020-11-22 13:03:34,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:03:34,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:03:34,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:03:34,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:03:34,248 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-22 13:03:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:34,265 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-11-22 13:03:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:03:34,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:03:34,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:34,266 INFO L225 Difference]: With dead ends: 67 [2020-11-22 13:03:34,266 INFO L226 Difference]: Without dead ends: 30 [2020-11-22 13:03:34,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:03:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-22 13:03:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-22 13:03:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-22 13:03:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-22 13:03:34,269 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-22 13:03:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:34,269 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-22 13:03:34,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:03:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-22 13:03:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:03:34,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:34,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:34,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:03:34,270 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:34,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:34,270 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-11-22 13:03:34,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:03:34,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825616268] [2020-11-22 13:03:34,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:03:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:03:34,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825616268] [2020-11-22 13:03:34,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:34,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:03:34,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353684582] [2020-11-22 13:03:34,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:03:34,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:03:34,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:03:34,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:03:34,361 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-22 13:03:34,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:34,380 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-22 13:03:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:03:34,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:03:34,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:34,381 INFO L225 Difference]: With dead ends: 29 [2020-11-22 13:03:34,381 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:03:34,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:03:34,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:03:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:03:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:03:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:03:34,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-22 13:03:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:34,382 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:03:34,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:03:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:03:34,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:03:34,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:03:34,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:03:34 BasicIcfg [2020-11-22 13:03:34,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:03:34,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:03:34,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:03:34,387 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:03:34,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:30" (3/4) ... [2020-11-22 13:03:34,391 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:03:34,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-22 13:03:34,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-22 13:03:34,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-22 13:03:34,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-22 13:03:34,404 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:03:34,404 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:03:34,404 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:03:34,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8e4872ab-8783-4097-abe1-40ffe3a77817/bin/utaipan/witness.graphml [2020-11-22 13:03:34,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:03:34,461 INFO L168 Benchmark]: Toolchain (without parser) took 5325.87 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 66.1 MB in the beginning and 124.2 MB in the end (delta: -58.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:03:34,461 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 72.2 MB in the beginning and 72.2 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:03:34,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.98 ms. Allocated memory is still 100.7 MB. Free memory was 65.9 MB in the beginning and 58.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:34,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 56.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:34,462 INFO L168 Benchmark]: Boogie Preprocessor took 25.75 ms. Allocated memory is still 100.7 MB. Free memory was 56.0 MB in the beginning and 54.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:03:34,463 INFO L168 Benchmark]: RCFGBuilder took 502.62 ms. Allocated memory is still 100.7 MB. Free memory was 54.6 MB in the beginning and 76.4 MB in the end (delta: -21.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:34,463 INFO L168 Benchmark]: TraceAbstraction took 4065.84 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 76.4 MB in the beginning and 127.3 MB in the end (delta: -50.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:34,463 INFO L168 Benchmark]: Witness Printer took 68.63 ms. Allocated memory is still 155.2 MB. Free memory was 126.3 MB in the beginning and 124.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:34,465 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 72.2 MB in the beginning and 72.2 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 610.98 ms. Allocated memory is still 100.7 MB. Free memory was 65.9 MB in the beginning and 58.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 56.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.75 ms. Allocated memory is still 100.7 MB. Free memory was 56.0 MB in the beginning and 54.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 502.62 ms. Allocated memory is still 100.7 MB. Free memory was 54.6 MB in the beginning and 76.4 MB in the end (delta: -21.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4065.84 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 76.4 MB in the beginning and 127.3 MB in the end (delta: -50.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.63 ms. Allocated memory is still 155.2 MB. Free memory was 126.3 MB in the beginning and 124.2 MB in the end (delta: 2.1 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 950 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.6s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 115 SDtfs, 168 SDslu, 151 SDs, 0 SdLazy, 57 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...