./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_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_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/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 ee305458a74cec4b02924e349c52932e4096d640 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:01:47,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:01:47,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:01:47,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:01:47,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:01:47,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:01:47,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:01:47,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:01:47,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:01:47,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:01:47,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:01:47,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:01:47,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:01:47,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:01:47,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:01:47,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:01:47,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:01:47,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:01:47,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:01:47,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:01:47,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:01:47,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:01:47,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:01:47,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:01:47,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:01:47,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:01:47,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:01:47,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:01:47,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:01:47,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:01:47,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:01:47,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:01:47,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:01:47,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:01:47,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:01:47,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:01:47,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:01:47,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:01:47,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:01:47,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:01:47,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:01:47,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 03:01:47,484 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:01:47,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:01:47,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:01:47,494 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:01:47,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:01:47,495 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:01:47,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 03:01:47,495 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:01:47,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:01:47,496 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 03:01:47,496 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 03:01:47,496 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:01:47,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 03:01:47,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 03:01:47,498 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 03:01:47,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:01:47,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:01:47,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 03:01:47,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:01:47,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:01:47,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:01:47,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:01:47,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:01:47,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:01:47,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:01:47,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:01:47,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:01:47,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:01:47,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:01:47,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:01:47,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:01:47,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:01:47,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:01:47,502 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 03:01:47,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 03:01:47,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:01:47,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:01:47,503 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_0063e600-cb08-4e42-866a-d4c9eccea25e/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 -> ee305458a74cec4b02924e349c52932e4096d640 [2019-11-26 03:01:47,673 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:01:47,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:01:47,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:01:47,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:01:47,691 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:01:47,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i [2019-11-26 03:01:47,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/data/21f822717/f1f219276e874a31bf68dc10a4a37fd5/FLAG9dff00b9e [2019-11-26 03:01:48,262 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:01:48,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i [2019-11-26 03:01:48,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/data/21f822717/f1f219276e874a31bf68dc10a4a37fd5/FLAG9dff00b9e [2019-11-26 03:01:48,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/data/21f822717/f1f219276e874a31bf68dc10a4a37fd5 [2019-11-26 03:01:48,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:01:48,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:01:48,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:48,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:01:48,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:01:48,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:48" (1/1) ... [2019-11-26 03:01:48,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af2120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:48, skipping insertion in model container [2019-11-26 03:01:48,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:48" (1/1) ... [2019-11-26 03:01:48,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:01:48,625 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:01:48,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:48,993 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:01:49,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:49,103 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:01:49,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49 WrapperNode [2019-11-26 03:01:49,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:49,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:49,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:01:49,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:01:49,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:49,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:01:49,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:01:49,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:01:49,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... [2019-11-26 03:01:49,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:01:49,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:01:49,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:01:49,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:01:49,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/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 03:01:49,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 03:01:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 03:01:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 03:01:49,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 03:01:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 03:01:49,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 03:01:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 03:01:49,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 03:01:49,231 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 03:01:49,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 03:01:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 03:01:49,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:01:49,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:01:49,233 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 03:01:49,544 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:01:49,544 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 03:01:49,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:49 BoogieIcfgContainer [2019-11-26 03:01:49,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:01:49,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:01:49,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:01:49,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:01:49,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:01:48" (1/3) ... [2019-11-26 03:01:49,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cedc0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:01:49, skipping insertion in model container [2019-11-26 03:01:49,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:49" (2/3) ... [2019-11-26 03:01:49,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cedc0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:01:49, skipping insertion in model container [2019-11-26 03:01:49,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:49" (3/3) ... [2019-11-26 03:01:49,551 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2019-11-26 03:01:49,602 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,602 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,602 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,602 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,603 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,603 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,603 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,603 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,604 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,604 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,606 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,606 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,606 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,606 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,606 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,607 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,607 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,607 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,607 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,607 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,607 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,608 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,608 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,609 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,609 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,609 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,610 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,611 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,611 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,611 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,611 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,611 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,612 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,612 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,612 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,612 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,612 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 03:01:49,639 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 03:01:49,640 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:01:49,645 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 03:01:49,655 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 03:01:49,672 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:01:49,673 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:01:49,673 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:01:49,673 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:01:49,673 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:01:49,673 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:01:49,674 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:01:49,674 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:01:49,684 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-26 03:01:49,817 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-26 03:01:49,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-26 03:01:49,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 03:01:49,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:49,842 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 03:01:49,842 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:49,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:49,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1222528113, now seen corresponding path program 1 times [2019-11-26 03:01:49,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:49,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026147476] [2019-11-26 03:01:49,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:50,159 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 03:01:50,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026147476] [2019-11-26 03:01:50,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:50,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 03:01:50,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111897453] [2019-11-26 03:01:50,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 03:01:50,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:50,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 03:01:50,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 03:01:50,177 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-26 03:01:50,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:50,310 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-26 03:01:50,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 03:01:50,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-26 03:01:50,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:50,336 INFO L225 Difference]: With dead ends: 1295 [2019-11-26 03:01:50,336 INFO L226 Difference]: Without dead ends: 601 [2019-11-26 03:01:50,340 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 03:01:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-26 03:01:50,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-26 03:01:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-26 03:01:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-26 03:01:50,439 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-26 03:01:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:50,440 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-26 03:01:50,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 03:01:50,440 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-26 03:01:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 03:01:50,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:50,458 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 03:01:50,458 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:50,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:50,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1759325087, now seen corresponding path program 1 times [2019-11-26 03:01:50,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:50,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361424371] [2019-11-26 03:01:50,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:50,595 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 03:01:50,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361424371] [2019-11-26 03:01:50,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:50,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 03:01:50,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115783430] [2019-11-26 03:01:50,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 03:01:50,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:50,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 03:01:50,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 03:01:50,599 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-26 03:01:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:50,671 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-26 03:01:50,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 03:01:50,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-26 03:01:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:50,678 INFO L225 Difference]: With dead ends: 601 [2019-11-26 03:01:50,681 INFO L226 Difference]: Without dead ends: 538 [2019-11-26 03:01:50,682 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 03:01:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-26 03:01:50,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-26 03:01:50,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-26 03:01:50,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-26 03:01:50,719 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-26 03:01:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:50,720 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-26 03:01:50,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 03:01:50,720 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-26 03:01:50,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 03:01:50,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:50,722 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 03:01:50,722 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:50,723 INFO L82 PathProgramCache]: Analyzing trace with hash 784371783, now seen corresponding path program 1 times [2019-11-26 03:01:50,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:50,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131774073] [2019-11-26 03:01:50,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:50,835 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 03:01:50,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131774073] [2019-11-26 03:01:50,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:50,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 03:01:50,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888912026] [2019-11-26 03:01:50,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 03:01:50,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:50,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 03:01:50,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 03:01:50,837 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-26 03:01:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:50,922 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-26 03:01:50,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 03:01:50,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-26 03:01:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:50,926 INFO L225 Difference]: With dead ends: 403 [2019-11-26 03:01:50,926 INFO L226 Difference]: Without dead ends: 349 [2019-11-26 03:01:50,927 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 03:01:50,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-26 03:01:50,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-26 03:01:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-26 03:01:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-26 03:01:50,942 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-26 03:01:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:50,943 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-26 03:01:50,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 03:01:50,943 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-26 03:01:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 03:01:50,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:50,945 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, 1] [2019-11-26 03:01:50,945 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:50,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:50,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1086663391, now seen corresponding path program 1 times [2019-11-26 03:01:50,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:50,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579840838] [2019-11-26 03:01:50,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:51,108 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 03:01:51,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579840838] [2019-11-26 03:01:51,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:51,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 03:01:51,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616147610] [2019-11-26 03:01:51,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 03:01:51,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:51,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 03:01:51,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 03:01:51,110 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-11-26 03:01:51,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:51,268 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-11-26 03:01:51,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 03:01:51,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 03:01:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:51,271 INFO L225 Difference]: With dead ends: 520 [2019-11-26 03:01:51,271 INFO L226 Difference]: Without dead ends: 277 [2019-11-26 03:01:51,272 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-26 03:01:51,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-11-26 03:01:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-11-26 03:01:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-26 03:01:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 726 transitions. [2019-11-26 03:01:51,283 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 726 transitions. Word has length 34 [2019-11-26 03:01:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:51,284 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 726 transitions. [2019-11-26 03:01:51,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 03:01:51,285 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 726 transitions. [2019-11-26 03:01:51,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 03:01:51,291 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:51,291 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, 1] [2019-11-26 03:01:51,292 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:51,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash 142051721, now seen corresponding path program 2 times [2019-11-26 03:01:51,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:51,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72331192] [2019-11-26 03:01:51,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:51,439 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 03:01:51,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72331192] [2019-11-26 03:01:51,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:51,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 03:01:51,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172544514] [2019-11-26 03:01:51,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 03:01:51,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:51,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 03:01:51,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 03:01:51,441 INFO L87 Difference]: Start difference. First operand 277 states and 726 transitions. Second operand 7 states. [2019-11-26 03:01:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:51,607 INFO L93 Difference]: Finished difference Result 439 states and 1185 transitions. [2019-11-26 03:01:51,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 03:01:51,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 03:01:51,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:51,610 INFO L225 Difference]: With dead ends: 439 [2019-11-26 03:01:51,610 INFO L226 Difference]: Without dead ends: 253 [2019-11-26 03:01:51,610 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 03:01:51,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-11-26 03:01:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-11-26 03:01:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-11-26 03:01:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-11-26 03:01:51,619 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-11-26 03:01:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:51,620 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-11-26 03:01:51,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 03:01:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-11-26 03:01:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 03:01:51,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:51,621 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, 1] [2019-11-26 03:01:51,622 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:51,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1624324137, now seen corresponding path program 3 times [2019-11-26 03:01:51,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:51,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523204399] [2019-11-26 03:01:51,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:51,759 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 03:01:51,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523204399] [2019-11-26 03:01:51,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:51,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 03:01:51,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329858685] [2019-11-26 03:01:51,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 03:01:51,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:51,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 03:01:51,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 03:01:51,761 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-11-26 03:01:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:51,857 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-11-26 03:01:51,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 03:01:51,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-26 03:01:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:51,858 INFO L225 Difference]: With dead ends: 199 [2019-11-26 03:01:51,858 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 03:01:51,858 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 03:01:51,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 03:01:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 03:01:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 03:01:51,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 03:01:51,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-26 03:01:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:51,859 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 03:01:51,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 03:01:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 03:01:51,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 03:01:51,862 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 03:01:51,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:01:51 BasicIcfg [2019-11-26 03:01:51,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:01:51,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:01:51,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:01:51,865 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:01:51,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:49" (3/4) ... [2019-11-26 03:01:51,871 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 03:01:51,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 03:01:51,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 03:01:51,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 03:01:51,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 03:01:51,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 03:01:51,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 03:01:51,959 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0063e600-cb08-4e42-866a-d4c9eccea25e/bin/utaipan/witness.graphml [2019-11-26 03:01:51,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:01:51,962 INFO L168 Benchmark]: Toolchain (without parser) took 3403.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 4.6 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:51,963 INFO L168 Benchmark]: CDTParser took 0.18 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 03:01:51,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:51,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.27 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 03:01:51,967 INFO L168 Benchmark]: Boogie Preprocessor took 24.08 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 03:01:51,971 INFO L168 Benchmark]: RCFGBuilder took 374.69 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:51,971 INFO L168 Benchmark]: TraceAbstraction took 2318.44 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 03:01:51,972 INFO L168 Benchmark]: Witness Printer took 96.28 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:51,973 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 545.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.27 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 24.08 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 374.69 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2318.44 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 96.28 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: 6.9 MB). Peak memory consumption was 6.9 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, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 309 SDtfs, 363 SDslu, 847 SDs, 0 SdLazy, 119 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 19032 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...