./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1f6da3127691bb0e5394a1726d8987d9638d94e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:31:39,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:31:39,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:31:39,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:31:39,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:31:39,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:31:39,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:31:39,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:31:39,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:31:39,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:31:39,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:31:39,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:31:39,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:31:39,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:31:39,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:31:39,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:31:39,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:31:39,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:31:39,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:31:39,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:31:39,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:31:39,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:31:39,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:31:39,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:31:39,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:31:39,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:31:39,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:31:39,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:31:39,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:31:39,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:31:39,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:31:39,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:31:39,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:31:39,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:31:39,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:31:39,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:31:39,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:31:39,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:31:39,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:31:39,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:31:39,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:31:39,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:31:39,855 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:31:39,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:31:39,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:31:39,856 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:31:39,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:31:39,857 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:31:39,857 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:31:39,857 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:31:39,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:31:39,857 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:31:39,857 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:31:39,858 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:31:39,858 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:31:39,858 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:31:39,858 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:31:39,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:31:39,859 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:31:39,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:31:39,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:31:39,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:31:39,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:31:39,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:31:39,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:31:39,860 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:31:39,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:31:39,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:31:39,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:31:39,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:31:39,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:31:39,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:31:39,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:31:39,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:31:39,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:31:39,862 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:31:39,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:31:39,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:31:39,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:31:39,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e7fe2f93-054d-4377-af67-343ad50d574a/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(__VERIFIER_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 -> a1f6da3127691bb0e5394a1726d8987d9638d94e [2019-11-26 02:31:40,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:31:40,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:31:40,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:31:40,048 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:31:40,048 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:31:40,049 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i [2019-11-26 02:31:40,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/data/b764c3135/8b445f16dae94971af3c73cf3279fbc8/FLAG68df4a67d [2019-11-26 02:31:40,529 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:31:40,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i [2019-11-26 02:31:40,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/data/b764c3135/8b445f16dae94971af3c73cf3279fbc8/FLAG68df4a67d [2019-11-26 02:31:40,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/data/b764c3135/8b445f16dae94971af3c73cf3279fbc8 [2019-11-26 02:31:40,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:31:40,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:31:40,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:40,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:31:40,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:31:40,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:40" (1/1) ... [2019-11-26 02:31:40,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6781b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:40, skipping insertion in model container [2019-11-26 02:31:40,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:40" (1/1) ... [2019-11-26 02:31:40,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:31:40,961 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:31:41,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:41,341 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:31:41,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:41,471 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:31:41,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41 WrapperNode [2019-11-26 02:31:41,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:41,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:41,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:31:41,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:31:41,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:41,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:31:41,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:31:41,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:31:41,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... [2019-11-26 02:31:41,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:31:41,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:31:41,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:31:41,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:31:41,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/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 [2019-11-26 02:31:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:31:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:31:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:31:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:31:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:31:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:31:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:31:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:31:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:31:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:31:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:31:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:31:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:31:41,597 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:31:41,932 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:31:41,933 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:31:41,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:41 BoogieIcfgContainer [2019-11-26 02:31:41,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:31:41,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:31:41,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:31:41,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:31:41,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:31:40" (1/3) ... [2019-11-26 02:31:41,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de968f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:41, skipping insertion in model container [2019-11-26 02:31:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:41" (2/3) ... [2019-11-26 02:31:41,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de968f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:41, skipping insertion in model container [2019-11-26 02:31:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:41" (3/3) ... [2019-11-26 02:31:41,941 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2019-11-26 02:31:41,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,981 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,982 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,984 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,984 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,984 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,984 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,985 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,985 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,985 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,985 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,986 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,986 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,986 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,986 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,987 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,988 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,990 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,990 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,992 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,992 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,993 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,993 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,994 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:41,994 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:31:42,015 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:31:42,016 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:31:42,022 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:31:42,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:31:42,049 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:31:42,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:31:42,050 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:31:42,050 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:31:42,050 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:31:42,050 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:31:42,050 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:31:42,050 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:31:42,059 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 73 transitions [2019-11-26 02:31:42,200 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-11-26 02:31:42,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-11-26 02:31:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-26 02:31:42,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:42,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:42,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:42,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:42,223 INFO L82 PathProgramCache]: Analyzing trace with hash -257235676, now seen corresponding path program 1 times [2019-11-26 02:31:42,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:42,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355687779] [2019-11-26 02:31:42,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:42,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355687779] [2019-11-26 02:31:42,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:42,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:31:42,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507068529] [2019-11-26 02:31:42,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:31:42,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:42,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:31:42,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:31:42,512 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-11-26 02:31:42,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:42,597 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-11-26 02:31:42,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:31:42,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-11-26 02:31:42,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:42,631 INFO L225 Difference]: With dead ends: 1293 [2019-11-26 02:31:42,632 INFO L226 Difference]: Without dead ends: 599 [2019-11-26 02:31:42,634 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:31:42,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-11-26 02:31:42,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-11-26 02:31:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-11-26 02:31:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-11-26 02:31:42,735 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-11-26 02:31:42,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:42,736 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-11-26 02:31:42,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:31:42,736 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-11-26 02:31:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:31:42,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:42,740 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:42,740 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:42,744 INFO L82 PathProgramCache]: Analyzing trace with hash -503573346, now seen corresponding path program 1 times [2019-11-26 02:31:42,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:42,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536802363] [2019-11-26 02:31:42,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:42,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536802363] [2019-11-26 02:31:42,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:42,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:31:42,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642216366] [2019-11-26 02:31:42,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:31:42,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:42,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:31:42,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:31:42,901 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-11-26 02:31:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:42,959 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-11-26 02:31:42,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:31:42,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-26 02:31:42,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:42,964 INFO L225 Difference]: With dead ends: 599 [2019-11-26 02:31:42,965 INFO L226 Difference]: Without dead ends: 536 [2019-11-26 02:31:42,965 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:31:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-11-26 02:31:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-11-26 02:31:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-11-26 02:31:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-11-26 02:31:42,992 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-11-26 02:31:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:42,993 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-11-26 02:31:42,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:31:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-11-26 02:31:42,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:31:42,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:42,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:42,997 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:42,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:42,997 INFO L82 PathProgramCache]: Analyzing trace with hash -521154612, now seen corresponding path program 1 times [2019-11-26 02:31:42,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:42,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524355646] [2019-11-26 02:31:42,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:43,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524355646] [2019-11-26 02:31:43,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:43,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:31:43,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008440119] [2019-11-26 02:31:43,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:31:43,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:43,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:31:43,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:31:43,139 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-11-26 02:31:43,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:43,246 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-11-26 02:31:43,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:31:43,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-26 02:31:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:43,255 INFO L225 Difference]: With dead ends: 401 [2019-11-26 02:31:43,255 INFO L226 Difference]: Without dead ends: 347 [2019-11-26 02:31:43,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:31:43,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-11-26 02:31:43,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-11-26 02:31:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-26 02:31:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-11-26 02:31:43,278 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-11-26 02:31:43,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:43,279 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-11-26 02:31:43,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:31:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-11-26 02:31:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:31:43,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:43,282 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:43,282 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:43,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:43,283 INFO L82 PathProgramCache]: Analyzing trace with hash -954980242, now seen corresponding path program 1 times [2019-11-26 02:31:43,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:43,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394983904] [2019-11-26 02:31:43,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:43,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394983904] [2019-11-26 02:31:43,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:43,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:31:43,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698139140] [2019-11-26 02:31:43,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:31:43,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:43,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:31:43,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:31:43,485 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 7 states. [2019-11-26 02:31:43,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:43,800 INFO L93 Difference]: Finished difference Result 725 states and 1957 transitions. [2019-11-26 02:31:43,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-26 02:31:43,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-11-26 02:31:43,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:43,803 INFO L225 Difference]: With dead ends: 725 [2019-11-26 02:31:43,803 INFO L226 Difference]: Without dead ends: 278 [2019-11-26 02:31:43,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-11-26 02:31:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-26 02:31:43,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-26 02:31:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-26 02:31:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 724 transitions. [2019-11-26 02:31:43,822 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 724 transitions. Word has length 32 [2019-11-26 02:31:43,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:43,823 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 724 transitions. [2019-11-26 02:31:43,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:31:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 724 transitions. [2019-11-26 02:31:43,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:31:43,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:43,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:43,829 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:43,829 INFO L82 PathProgramCache]: Analyzing trace with hash -544214900, now seen corresponding path program 2 times [2019-11-26 02:31:43,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:43,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061128202] [2019-11-26 02:31:43,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:43,993 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061128202] [2019-11-26 02:31:43,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:43,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:31:43,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252450549] [2019-11-26 02:31:43,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:31:43,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:43,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:31:43,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:31:43,995 INFO L87 Difference]: Start difference. First operand 278 states and 724 transitions. Second operand 8 states. [2019-11-26 02:31:44,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:44,144 INFO L93 Difference]: Finished difference Result 449 states and 1204 transitions. [2019-11-26 02:31:44,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:31:44,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-26 02:31:44,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:44,146 INFO L225 Difference]: With dead ends: 449 [2019-11-26 02:31:44,146 INFO L226 Difference]: Without dead ends: 251 [2019-11-26 02:31:44,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:31:44,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-26 02:31:44,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-11-26 02:31:44,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-11-26 02:31:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-11-26 02:31:44,157 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-11-26 02:31:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:44,157 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-11-26 02:31:44,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:31:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-11-26 02:31:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:31:44,160 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:44,160 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:44,161 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:44,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:44,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1408076938, now seen corresponding path program 3 times [2019-11-26 02:31:44,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:44,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280058375] [2019-11-26 02:31:44,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:44,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:44,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280058375] [2019-11-26 02:31:44,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:44,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:31:44,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110236054] [2019-11-26 02:31:44,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:31:44,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:44,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:31:44,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:31:44,331 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-11-26 02:31:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:44,451 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-11-26 02:31:44,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:31:44,451 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-26 02:31:44,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:44,452 INFO L225 Difference]: With dead ends: 197 [2019-11-26 02:31:44,452 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:31:44,452 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:31:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:31:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:31:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:31:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:31:44,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-11-26 02:31:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:44,453 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:31:44,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:31:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:31:44,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:31:44,456 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:31:44,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:31:44 BasicIcfg [2019-11-26 02:31:44,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:31:44,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:31:44,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:31:44,458 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:31:44,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:41" (3/4) ... [2019-11-26 02:31:44,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:31:44,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:31:44,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:31:44,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:31:44,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:31:44,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:31:44,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:31:44,516 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e7fe2f93-054d-4377-af67-343ad50d574a/bin/utaipan/witness.graphml [2019-11-26 02:31:44,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:31:44,518 INFO L168 Benchmark]: Toolchain (without parser) took 3609.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:31:44,519 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:31:44,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:44,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:44,520 INFO L168 Benchmark]: Boogie Preprocessor took 24.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:31:44,521 INFO L168 Benchmark]: RCFGBuilder took 391.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:44,521 INFO L168 Benchmark]: TraceAbstraction took 2523.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:31:44,522 INFO L168 Benchmark]: Witness Printer took 58.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:44,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 563.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2523.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 58.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 13 procedures, 88 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 291 SDtfs, 432 SDslu, 835 SDs, 0 SdLazy, 124 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16334 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...