./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.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_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/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 b6e5b05d1d8a90ddac5eb7cbebfd54f127d9dc56 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:57:37,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:37,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:37,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:37,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:37,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:37,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:37,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:37,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:37,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:37,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:37,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:37,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:37,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:37,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:37,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:37,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:37,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:37,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:37,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:37,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:37,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:37,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:37,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:37,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:37,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:37,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:37,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:37,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:37,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:37,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:37,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:37,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:37,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:37,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:37,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:37,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:37,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:37,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:37,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:37,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:37,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:57:37,703 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:37,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:37,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:37,714 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:57:37,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:57:37,714 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:57:37,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:57:37,715 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:57:37,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:57:37,715 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:57:37,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:57:37,715 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:57:37,716 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:57:37,716 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:57:37,716 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:57:37,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:37,718 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:57:37,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:57:37,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:57:37,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:37,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:37,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:37,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:37,720 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:57:37,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:37,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:37,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:37,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:37,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:57:37,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:57:37,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:37,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:37,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:37,722 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:57:37,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:57:37,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:37,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:57:37,723 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_a69f9c06-2a93-43ef-89d1-199d2c8a961f/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 -> b6e5b05d1d8a90ddac5eb7cbebfd54f127d9dc56 [2019-11-26 02:57:37,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:37,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:37,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:37,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:37,913 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:37,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2019-11-26 02:57:37,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/data/93d041423/03b3023da643408f97144fc14ebdce38/FLAGc97de3b54 [2019-11-26 02:57:38,433 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:38,433 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2019-11-26 02:57:38,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/data/93d041423/03b3023da643408f97144fc14ebdce38/FLAGc97de3b54 [2019-11-26 02:57:38,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/data/93d041423/03b3023da643408f97144fc14ebdce38 [2019-11-26 02:57:38,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:38,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:38,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:38,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:38,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:38,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:38" (1/1) ... [2019-11-26 02:57:38,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22403bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:38, skipping insertion in model container [2019-11-26 02:57:38,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:38" (1/1) ... [2019-11-26 02:57:38,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:38,867 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:39,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:39,264 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:57:39,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:39,394 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:57:39,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39 WrapperNode [2019-11-26 02:57:39,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:39,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:39,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:57:39,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:57:39,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:39,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:57:39,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:57:39,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:57:39,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... [2019-11-26 02:57:39,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:57:39,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:57:39,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:57:39,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:57:39,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/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 02:57:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:57:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-26 02:57:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-26 02:57:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:57:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:57:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:57:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:57:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:57:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:57:39,539 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 02:57:39,749 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-11-26 02:57:39,750 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-11-26 02:57:39,751 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-11-26 02:57:39,755 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-11-26 02:57:39,849 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-11-26 02:57:39,850 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-11-26 02:57:39,912 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:57:39,912 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:57:39,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:39 BoogieIcfgContainer [2019-11-26 02:57:39,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:57:39,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:57:39,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:57:39,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:57:39,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:57:38" (1/3) ... [2019-11-26 02:57:39,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e978517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:39, skipping insertion in model container [2019-11-26 02:57:39,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:39" (2/3) ... [2019-11-26 02:57:39,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e978517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:39, skipping insertion in model container [2019-11-26 02:57:39,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:39" (3/3) ... [2019-11-26 02:57:39,920 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-11-26 02:57:39,992 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,992 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,994 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,997 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,997 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,997 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:39,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,005 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,005 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,005 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,009 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,010 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,011 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,011 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,012 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,012 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,012 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,012 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,017 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,017 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:57:40,027 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:57:40,028 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:57:40,034 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-26 02:57:40,046 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-26 02:57:40,064 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:57:40,064 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:57:40,065 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:57:40,065 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:57:40,065 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:57:40,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:57:40,071 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:57:40,071 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:57:40,086 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 77 transitions [2019-11-26 02:57:40,130 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 255 states. [2019-11-26 02:57:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-11-26 02:57:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-26 02:57:40,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:40,141 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] [2019-11-26 02:57:40,142 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:40,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:40,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1989187497, now seen corresponding path program 1 times [2019-11-26 02:57:40,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:40,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75623170] [2019-11-26 02:57:40,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:40,380 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 02:57:40,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75623170] [2019-11-26 02:57:40,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:40,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:57:40,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534028818] [2019-11-26 02:57:40,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:57:40,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:40,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:57:40,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,408 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2019-11-26 02:57:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:40,443 INFO L93 Difference]: Finished difference Result 255 states and 475 transitions. [2019-11-26 02:57:40,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:57:40,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-26 02:57:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:40,463 INFO L225 Difference]: With dead ends: 255 [2019-11-26 02:57:40,463 INFO L226 Difference]: Without dead ends: 215 [2019-11-26 02:57:40,464 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-11-26 02:57:40,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-11-26 02:57:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-11-26 02:57:40,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 391 transitions. [2019-11-26 02:57:40,517 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 391 transitions. Word has length 20 [2019-11-26 02:57:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:40,518 INFO L462 AbstractCegarLoop]: Abstraction has 215 states and 391 transitions. [2019-11-26 02:57:40,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:57:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 391 transitions. [2019-11-26 02:57:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:57:40,519 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:40,519 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] [2019-11-26 02:57:40,520 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:40,520 INFO L82 PathProgramCache]: Analyzing trace with hash 319156008, now seen corresponding path program 1 times [2019-11-26 02:57:40,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:40,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521589991] [2019-11-26 02:57:40,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:40,606 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 02:57:40,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521589991] [2019-11-26 02:57:40,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:40,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:57:40,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078144998] [2019-11-26 02:57:40,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:57:40,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:40,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:57:40,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,611 INFO L87 Difference]: Start difference. First operand 215 states and 391 transitions. Second operand 3 states. [2019-11-26 02:57:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:40,642 INFO L93 Difference]: Finished difference Result 226 states and 392 transitions. [2019-11-26 02:57:40,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:57:40,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-26 02:57:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:40,645 INFO L225 Difference]: With dead ends: 226 [2019-11-26 02:57:40,645 INFO L226 Difference]: Without dead ends: 166 [2019-11-26 02:57:40,646 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-26 02:57:40,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2019-11-26 02:57:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-26 02:57:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 260 transitions. [2019-11-26 02:57:40,669 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 260 transitions. Word has length 22 [2019-11-26 02:57:40,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:40,669 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 260 transitions. [2019-11-26 02:57:40,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:57:40,670 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 260 transitions. [2019-11-26 02:57:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 02:57:40,671 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:40,671 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] [2019-11-26 02:57:40,671 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:40,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:40,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2068565636, now seen corresponding path program 1 times [2019-11-26 02:57:40,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:40,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802655004] [2019-11-26 02:57:40,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:40,726 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 02:57:40,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802655004] [2019-11-26 02:57:40,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:40,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:57:40,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029258672] [2019-11-26 02:57:40,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:57:40,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:40,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:57:40,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,728 INFO L87 Difference]: Start difference. First operand 154 states and 260 transitions. Second operand 3 states. [2019-11-26 02:57:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:40,751 INFO L93 Difference]: Finished difference Result 142 states and 230 transitions. [2019-11-26 02:57:40,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:57:40,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-26 02:57:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:40,753 INFO L225 Difference]: With dead ends: 142 [2019-11-26 02:57:40,753 INFO L226 Difference]: Without dead ends: 110 [2019-11-26 02:57:40,753 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-26 02:57:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-26 02:57:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-26 02:57:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 171 transitions. [2019-11-26 02:57:40,762 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 171 transitions. Word has length 24 [2019-11-26 02:57:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:40,763 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 171 transitions. [2019-11-26 02:57:40,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:57:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 171 transitions. [2019-11-26 02:57:40,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-26 02:57:40,764 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:40,765 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:40,765 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:40,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:40,765 INFO L82 PathProgramCache]: Analyzing trace with hash 2040455417, now seen corresponding path program 1 times [2019-11-26 02:57:40,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:40,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238321981] [2019-11-26 02:57:40,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:40,828 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 02:57:40,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238321981] [2019-11-26 02:57:40,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:40,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:57:40,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319728856] [2019-11-26 02:57:40,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:57:40,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:40,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:57:40,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,830 INFO L87 Difference]: Start difference. First operand 110 states and 171 transitions. Second operand 3 states. [2019-11-26 02:57:40,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:40,836 INFO L93 Difference]: Finished difference Result 110 states and 168 transitions. [2019-11-26 02:57:40,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:57:40,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-11-26 02:57:40,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:40,838 INFO L225 Difference]: With dead ends: 110 [2019-11-26 02:57:40,838 INFO L226 Difference]: Without dead ends: 92 [2019-11-26 02:57:40,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-26 02:57:40,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-11-26 02:57:40,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-26 02:57:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions. [2019-11-26 02:57:40,846 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 29 [2019-11-26 02:57:40,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:40,846 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 135 transitions. [2019-11-26 02:57:40,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:57:40,846 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2019-11-26 02:57:40,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-26 02:57:40,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:40,848 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:40,848 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:40,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:40,848 INFO L82 PathProgramCache]: Analyzing trace with hash 612885201, now seen corresponding path program 1 times [2019-11-26 02:57:40,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:40,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478895835] [2019-11-26 02:57:40,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:40,936 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 02:57:40,936 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478895835] [2019-11-26 02:57:40,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:40,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:57:40,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825736888] [2019-11-26 02:57:40,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:57:40,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:40,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:57:40,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:57:40,938 INFO L87 Difference]: Start difference. First operand 92 states and 135 transitions. Second operand 4 states. [2019-11-26 02:57:40,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:40,986 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2019-11-26 02:57:40,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:57:40,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-11-26 02:57:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:40,987 INFO L225 Difference]: With dead ends: 36 [2019-11-26 02:57:40,987 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:57:40,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 02:57:40,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:57:40,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:57:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:57:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:57:40,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-11-26 02:57:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:40,988 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:57:40,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:57:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:57:40,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:57:40,992 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:57:40,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:57:40 BasicIcfg [2019-11-26 02:57:40,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:57:40,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:57:40,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:57:40,995 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:57:40,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:39" (3/4) ... [2019-11-26 02:57:40,998 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:57:41,005 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-11-26 02:57:41,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-26 02:57:41,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:57:41,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:57:41,051 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a69f9c06-2a93-43ef-89d1-199d2c8a961f/bin/utaipan/witness.graphml [2019-11-26 02:57:41,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:57:41,054 INFO L168 Benchmark]: Toolchain (without parser) took 2260.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 946.1 MB in the beginning and 991.4 MB in the end (delta: -45.4 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:41,054 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:41,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:41,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.96 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:41,055 INFO L168 Benchmark]: Boogie Preprocessor took 25.99 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 02:57:41,056 INFO L168 Benchmark]: RCFGBuilder took 438.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:41,056 INFO L168 Benchmark]: TraceAbstraction took 1080.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:41,057 INFO L168 Benchmark]: Witness Printer took 57.62 ms. Allocated memory is still 1.2 GB. Free memory was 996.8 MB in the beginning and 991.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:41,059 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 598.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.96 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.99 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 438.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1080.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Witness Printer took 57.62 ms. Allocated memory is still 1.2 GB. Free memory was 996.8 MB in the beginning and 991.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 83 locations, 5 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 233 SDtfs, 120 SDslu, 124 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 4749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...