./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe026_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_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/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 4accf54732b54d332687e8ae80cd0f2166ab28a4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:43:45,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:43:45,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:43:45,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:43:45,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:43:45,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:43:45,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:43:45,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:43:45,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:43:45,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:43:45,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:43:45,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:43:45,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:43:45,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:43:45,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:43:45,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:43:45,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:43:45,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:43:45,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:43:45,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:43:45,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:43:45,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:43:45,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:43:45,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:43:45,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:43:45,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:43:45,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:43:45,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:43:45,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:43:45,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:43:45,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:43:45,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:43:45,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:43:45,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:43:45,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:43:45,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:43:45,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:43:45,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:43:45,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:43:45,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:43:45,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:43:45,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:43:45,812 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:43:45,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:43:45,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:43:45,813 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:43:45,813 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:43:45,813 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:43:45,813 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:43:45,814 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:43:45,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:43:45,814 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:43:45,814 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:43:45,814 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:43:45,815 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:43:45,815 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:43:45,815 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:43:45,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:43:45,816 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:43:45,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:43:45,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:43:45,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:43:45,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:43:45,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:43:45,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:43:45,817 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:43:45,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:43:45,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:43:45,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:43:45,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:43:45,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:43:45,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:43:45,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:43:45,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:43:45,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:43:45,819 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:43:45,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:43:45,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:43:45,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:43:45,819 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_640487ec-94c4-471d-bed7-d8725248a2e0/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 -> 4accf54732b54d332687e8ae80cd0f2166ab28a4 [2019-11-26 02:43:45,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:43:45,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:43:45,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:43:45,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:43:45,966 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:43:45,966 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i [2019-11-26 02:43:46,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/data/22d17b84e/073cb43d8890403982ac538a1de34b64/FLAG6552b3423 [2019-11-26 02:43:46,520 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:43:46,521 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i [2019-11-26 02:43:46,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/data/22d17b84e/073cb43d8890403982ac538a1de34b64/FLAG6552b3423 [2019-11-26 02:43:47,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/data/22d17b84e/073cb43d8890403982ac538a1de34b64 [2019-11-26 02:43:47,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:43:47,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:43:47,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:47,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:43:47,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:43:47,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a60956a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47, skipping insertion in model container [2019-11-26 02:43:47,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:43:47,091 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:43:47,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:47,475 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:43:47,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:47,587 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:43:47,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47 WrapperNode [2019-11-26 02:43:47,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:47,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:47,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:43:47,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:43:47,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:47,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:43:47,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:43:47,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:43:47,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... [2019-11-26 02:43:47,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:43:47,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:43:47,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:43:47,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:43:47,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/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 02:43:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:43:47,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:43:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:43:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:43:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:43:47,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:43:47,753 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:43:47,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:43:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:43:47,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:43:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:43:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:43:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:43:47,757 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 02:43:48,115 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:43:48,115 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:43:48,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:48 BoogieIcfgContainer [2019-11-26 02:43:48,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:43:48,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:43:48,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:43:48,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:43:48,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:43:47" (1/3) ... [2019-11-26 02:43:48,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65669fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:43:48, skipping insertion in model container [2019-11-26 02:43:48,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:47" (2/3) ... [2019-11-26 02:43:48,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65669fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:43:48, skipping insertion in model container [2019-11-26 02:43:48,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:48" (3/3) ... [2019-11-26 02:43:48,123 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.opt.i [2019-11-26 02:43:48,161 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,161 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,161 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,161 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,162 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,162 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,162 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,163 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,163 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,163 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,163 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,163 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,164 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,164 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,165 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,165 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,166 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,166 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,166 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,166 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,167 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,167 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,167 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,167 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,167 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,168 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,168 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,169 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,170 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,170 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,170 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,171 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,171 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,173 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,173 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:43:48,198 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:43:48,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:43:48,205 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:43:48,215 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:43:48,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:43:48,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:43:48,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:43:48,233 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:43:48,233 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:43:48,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:43:48,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:43:48,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:43:48,243 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-26 02:43:48,379 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-26 02:43:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-26 02:43:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:43:48,420 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:48,421 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 02:43:48,421 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:48,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:48,426 INFO L82 PathProgramCache]: Analyzing trace with hash -167790918, now seen corresponding path program 1 times [2019-11-26 02:43:48,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:48,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122449416] [2019-11-26 02:43:48,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:48,759 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 02:43:48,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122449416] [2019-11-26 02:43:48,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:48,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:43:48,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858324250] [2019-11-26 02:43:48,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:43:48,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:48,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:43:48,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:43:48,782 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-26 02:43:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:48,878 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-26 02:43:48,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:43:48,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-26 02:43:48,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:48,907 INFO L225 Difference]: With dead ends: 1294 [2019-11-26 02:43:48,909 INFO L226 Difference]: Without dead ends: 600 [2019-11-26 02:43:48,912 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 02:43:48,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-26 02:43:49,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-26 02:43:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-26 02:43:49,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-26 02:43:49,013 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-26 02:43:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:49,013 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-26 02:43:49,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:43:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-26 02:43:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:43:49,016 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:49,016 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 02:43:49,017 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:49,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:49,017 INFO L82 PathProgramCache]: Analyzing trace with hash 317834058, now seen corresponding path program 1 times [2019-11-26 02:43:49,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:49,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993285664] [2019-11-26 02:43:49,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:49,188 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 02:43:49,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993285664] [2019-11-26 02:43:49,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:49,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:43:49,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195108026] [2019-11-26 02:43:49,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:43:49,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:49,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:43:49,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:43:49,191 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-26 02:43:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:49,264 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-26 02:43:49,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:43:49,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-26 02:43:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:49,270 INFO L225 Difference]: With dead ends: 600 [2019-11-26 02:43:49,271 INFO L226 Difference]: Without dead ends: 537 [2019-11-26 02:43:49,271 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 02:43:49,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-26 02:43:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-26 02:43:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-26 02:43:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-26 02:43:49,300 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-26 02:43:49,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:49,300 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-26 02:43:49,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:43:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-26 02:43:49,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:43:49,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:49,303 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 02:43:49,303 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:49,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:49,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1918522772, now seen corresponding path program 1 times [2019-11-26 02:43:49,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:49,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407910930] [2019-11-26 02:43:49,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:49,437 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 02:43:49,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407910930] [2019-11-26 02:43:49,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:49,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:43:49,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107573754] [2019-11-26 02:43:49,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:43:49,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:49,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:43:49,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:43:49,439 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-26 02:43:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:49,632 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-26 02:43:49,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:43:49,633 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-26 02:43:49,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:49,636 INFO L225 Difference]: With dead ends: 402 [2019-11-26 02:43:49,636 INFO L226 Difference]: Without dead ends: 348 [2019-11-26 02:43:49,637 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:43:49,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-26 02:43:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-26 02:43:49,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-26 02:43:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-26 02:43:49,651 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-26 02:43:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:49,652 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-26 02:43:49,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:43:49,652 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-26 02:43:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:43:49,654 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:49,654 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, 1] [2019-11-26 02:43:49,654 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:49,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:49,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1088306690, now seen corresponding path program 1 times [2019-11-26 02:43:49,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:49,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411638905] [2019-11-26 02:43:49,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:49,829 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 02:43:49,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411638905] [2019-11-26 02:43:49,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:49,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:43:49,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239482224] [2019-11-26 02:43:49,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:43:49,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:49,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:43:49,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:43:49,831 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-11-26 02:43:49,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:49,997 INFO L93 Difference]: Finished difference Result 555 states and 1478 transitions. [2019-11-26 02:43:49,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:43:49,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-26 02:43:49,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:50,000 INFO L225 Difference]: With dead ends: 555 [2019-11-26 02:43:50,000 INFO L226 Difference]: Without dead ends: 279 [2019-11-26 02:43:50,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:43:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2019-11-26 02:43:50,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2019-11-26 02:43:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-11-26 02:43:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 725 transitions. [2019-11-26 02:43:50,014 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 725 transitions. Word has length 33 [2019-11-26 02:43:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:50,015 INFO L462 AbstractCegarLoop]: Abstraction has 279 states and 725 transitions. [2019-11-26 02:43:50,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:43:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 725 transitions. [2019-11-26 02:43:50,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:43:50,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:50,022 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, 1] [2019-11-26 02:43:50,022 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:50,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:50,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1953738192, now seen corresponding path program 2 times [2019-11-26 02:43:50,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:50,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721691340] [2019-11-26 02:43:50,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:50,224 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 02:43:50,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721691340] [2019-11-26 02:43:50,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:50,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:43:50,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606240780] [2019-11-26 02:43:50,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:43:50,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:50,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:43:50,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:43:50,226 INFO L87 Difference]: Start difference. First operand 279 states and 725 transitions. Second operand 8 states. [2019-11-26 02:43:50,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:50,386 INFO L93 Difference]: Finished difference Result 450 states and 1205 transitions. [2019-11-26 02:43:50,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:43:50,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-26 02:43:50,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:50,391 INFO L225 Difference]: With dead ends: 450 [2019-11-26 02:43:50,391 INFO L226 Difference]: Without dead ends: 252 [2019-11-26 02:43:50,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-26 02:43:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-11-26 02:43:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-11-26 02:43:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-26 02:43:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-11-26 02:43:50,400 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-11-26 02:43:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:50,401 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-11-26 02:43:50,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:43:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-11-26 02:43:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:43:50,402 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:50,402 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, 1] [2019-11-26 02:43:50,402 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:50,403 INFO L82 PathProgramCache]: Analyzing trace with hash 842221196, now seen corresponding path program 3 times [2019-11-26 02:43:50,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:50,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834377961] [2019-11-26 02:43:50,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:50,536 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 02:43:50,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834377961] [2019-11-26 02:43:50,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:50,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:43:50,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80764812] [2019-11-26 02:43:50,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:43:50,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:50,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:43:50,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:43:50,538 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 7 states. [2019-11-26 02:43:50,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:50,642 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-11-26 02:43:50,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:43:50,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-26 02:43:50,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:50,642 INFO L225 Difference]: With dead ends: 198 [2019-11-26 02:43:50,642 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:43:50,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:43:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:43:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:43:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:43:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:43:50,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-26 02:43:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:50,644 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:43:50,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:43:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:43:50,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:43:50,647 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:43:50,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:43:50 BasicIcfg [2019-11-26 02:43:50,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:43:50,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:43:50,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:43:50,652 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:43:50,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:48" (3/4) ... [2019-11-26 02:43:50,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:43:50,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:43:50,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:43:50,665 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:43:50,681 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:43:50,688 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:43:50,688 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:43:50,735 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_640487ec-94c4-471d-bed7-d8725248a2e0/bin/utaipan/witness.graphml [2019-11-26 02:43:50,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:43:50,737 INFO L168 Benchmark]: Toolchain (without parser) took 3697.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.3 MB in the beginning and 817.7 MB in the end (delta: 121.7 MB). Peak memory consumption was 248.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:50,737 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:50,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:50,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.52 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 02:43:50,739 INFO L168 Benchmark]: Boogie Preprocessor took 24.58 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 02:43:50,739 INFO L168 Benchmark]: RCFGBuilder took 441.63 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:50,739 INFO L168 Benchmark]: TraceAbstraction took 2531.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 824.4 MB in the end (delta: 236.5 MB). Peak memory consumption was 236.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:50,740 INFO L168 Benchmark]: Witness Printer took 83.95 ms. Allocated memory is still 1.2 GB. Free memory was 824.4 MB in the beginning and 817.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:50,742 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 548.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.52 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. * Boogie Preprocessor took 24.58 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 441.63 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2531.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 824.4 MB in the end (delta: 236.5 MB). Peak memory consumption was 236.5 MB. Max. memory is 11.5 GB. * Witness Printer took 83.95 ms. Allocated memory is still 1.2 GB. Free memory was 824.4 MB in the beginning and 817.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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, 89 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 399 SDslu, 820 SDs, 0 SdLazy, 119 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 17178 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...