./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/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 35e5035aff88149aaa8a7a59938e3181d5b5bbbf ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 04:05:46,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 04:05:46,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 04:05:46,637 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 04:05:46,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 04:05:46,638 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 04:05:46,639 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 04:05:46,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 04:05:46,640 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 04:05:46,641 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 04:05:46,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 04:05:46,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 04:05:46,642 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 04:05:46,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 04:05:46,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 04:05:46,643 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 04:05:46,643 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 04:05:46,644 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 04:05:46,645 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 04:05:46,646 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 04:05:46,647 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 04:05:46,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 04:05:46,648 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 04:05:46,648 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 04:05:46,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 04:05:46,649 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 04:05:46,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 04:05:46,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 04:05:46,650 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 04:05:46,651 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 04:05:46,651 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 04:05:46,651 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 04:05:46,651 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 04:05:46,652 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 04:05:46,652 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 04:05:46,652 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 04:05:46,653 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 04:05:46,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 04:05:46,660 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 04:05:46,660 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 04:05:46,661 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 04:05:46,661 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 04:05:46,662 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 04:05:46,662 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 04:05:46,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 04:05:46,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 04:05:46,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 04:05:46,664 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 04:05:46,664 INFO L133 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/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/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 -> 35e5035aff88149aaa8a7a59938e3181d5b5bbbf [2018-12-03 04:05:46,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 04:05:46,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 04:05:46,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 04:05:46,690 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 04:05:46,691 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 04:05:46,691 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe022_tso.oepc_true-unreach-call.i [2018-12-03 04:05:46,725 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/data/2c8478e29/26c8db218916482dbea60a708b62dba8/FLAGa6885bf27 [2018-12-03 04:05:47,136 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 04:05:47,136 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/sv-benchmarks/c/pthread-wmm/safe022_tso.oepc_true-unreach-call.i [2018-12-03 04:05:47,143 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/data/2c8478e29/26c8db218916482dbea60a708b62dba8/FLAGa6885bf27 [2018-12-03 04:05:47,470 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/data/2c8478e29/26c8db218916482dbea60a708b62dba8 [2018-12-03 04:05:47,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 04:05:47,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 04:05:47,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 04:05:47,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 04:05:47,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 04:05:47,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae65c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47, skipping insertion in model container [2018-12-03 04:05:47,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 04:05:47,527 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 04:05:47,692 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:05:47,700 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 04:05:47,765 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:05:47,808 INFO L195 MainTranslator]: Completed translation [2018-12-03 04:05:47,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47 WrapperNode [2018-12-03 04:05:47,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 04:05:47,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 04:05:47,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 04:05:47,809 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 04:05:47,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 04:05:47,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 04:05:47,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 04:05:47,836 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 04:05:47,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... [2018-12-03 04:05:47,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 04:05:47,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 04:05:47,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 04:05:47,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 04:05:47,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/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 [2018-12-03 04:05:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 04:05:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 04:05:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-03 04:05:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 04:05:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-03 04:05:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-03 04:05:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-03 04:05:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-03 04:05:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-03 04:05:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 04:05:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 04:05:47,898 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-03 04:05:48,027 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 04:05:48,027 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 04:05:48,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:05:48 BoogieIcfgContainer [2018-12-03 04:05:48,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 04:05:48,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 04:05:48,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 04:05:48,030 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 04:05:48,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:05:47" (1/3) ... [2018-12-03 04:05:48,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caa2654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:05:48, skipping insertion in model container [2018-12-03 04:05:48,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:05:47" (2/3) ... [2018-12-03 04:05:48,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caa2654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:05:48, skipping insertion in model container [2018-12-03 04:05:48,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:05:48" (3/3) ... [2018-12-03 04:05:48,033 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc_true-unreach-call.i [2018-12-03 04:05:48,052 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,052 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,052 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,052 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,053 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,053 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,053 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,053 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,053 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,053 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,054 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,055 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,055 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:05:48,059 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-03 04:05:48,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 04:05:48,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 04:05:48,074 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 04:05:48,091 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 04:05:48,091 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 04:05:48,091 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 04:05:48,091 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 04:05:48,091 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 04:05:48,091 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 04:05:48,091 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 04:05:48,092 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 04:05:48,097 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44places, 42 transitions [2018-12-03 04:05:48,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2018-12-03 04:05:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2018-12-03 04:05:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 04:05:48,123 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:05:48,123 INFO L402 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] [2018-12-03 04:05:48,125 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:05:48,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:05:48,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1986495071, now seen corresponding path program 1 times [2018-12-03 04:05:48,130 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:05:48,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:05:48,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,167 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:05:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:05:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:05:48,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:05:48,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 04:05:48,260 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:05:48,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 04:05:48,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 04:05:48,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 04:05:48,272 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2018-12-03 04:05:48,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:05:48,313 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2018-12-03 04:05:48,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 04:05:48,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-03 04:05:48,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:05:48,322 INFO L225 Difference]: With dead ends: 444 [2018-12-03 04:05:48,322 INFO L226 Difference]: Without dead ends: 227 [2018-12-03 04:05:48,323 INFO L631 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 [2018-12-03 04:05:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-12-03 04:05:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-12-03 04:05:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-12-03 04:05:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2018-12-03 04:05:48,351 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2018-12-03 04:05:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:05:48,352 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2018-12-03 04:05:48,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 04:05:48,352 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2018-12-03 04:05:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 04:05:48,353 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:05:48,353 INFO L402 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] [2018-12-03 04:05:48,353 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:05:48,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:05:48,353 INFO L82 PathProgramCache]: Analyzing trace with hash -2009742139, now seen corresponding path program 1 times [2018-12-03 04:05:48,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:05:48,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:05:48,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,357 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:05:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:05:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:05:48,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:05:48,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 04:05:48,400 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:05:48,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 04:05:48,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 04:05:48,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-03 04:05:48,402 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2018-12-03 04:05:48,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:05:48,431 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2018-12-03 04:05:48,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 04:05:48,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-12-03 04:05:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:05:48,432 INFO L225 Difference]: With dead ends: 195 [2018-12-03 04:05:48,433 INFO L226 Difference]: Without dead ends: 171 [2018-12-03 04:05:48,433 INFO L631 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 [2018-12-03 04:05:48,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-12-03 04:05:48,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-12-03 04:05:48,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-12-03 04:05:48,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2018-12-03 04:05:48,439 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2018-12-03 04:05:48,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:05:48,440 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2018-12-03 04:05:48,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 04:05:48,440 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2018-12-03 04:05:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-03 04:05:48,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:05:48,441 INFO L402 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] [2018-12-03 04:05:48,441 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:05:48,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:05:48,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1111707995, now seen corresponding path program 1 times [2018-12-03 04:05:48,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:05:48,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:05:48,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,444 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:05:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:05:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:05:48,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:05:48,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 04:05:48,523 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:05:48,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 04:05:48,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 04:05:48,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-03 04:05:48,524 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 8 states. [2018-12-03 04:05:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:05:48,652 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2018-12-03 04:05:48,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 04:05:48,653 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-03 04:05:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:05:48,653 INFO L225 Difference]: With dead ends: 267 [2018-12-03 04:05:48,654 INFO L226 Difference]: Without dead ends: 167 [2018-12-03 04:05:48,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-12-03 04:05:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-12-03 04:05:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-12-03 04:05:48,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-12-03 04:05:48,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2018-12-03 04:05:48,659 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2018-12-03 04:05:48,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:05:48,659 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2018-12-03 04:05:48,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 04:05:48,659 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2018-12-03 04:05:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-03 04:05:48,660 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:05:48,660 INFO L402 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] [2018-12-03 04:05:48,660 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:05:48,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:05:48,660 INFO L82 PathProgramCache]: Analyzing trace with hash 204449309, now seen corresponding path program 2 times [2018-12-03 04:05:48,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:05:48,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:05:48,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:05:48,663 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:05:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:05:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:05:48,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:05:48,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 04:05:48,747 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:05:48,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 04:05:48,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 04:05:48,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-03 04:05:48,748 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 9 states. [2018-12-03 04:05:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:05:48,811 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2018-12-03 04:05:48,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 04:05:48,811 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-12-03 04:05:48,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:05:48,812 INFO L225 Difference]: With dead ends: 135 [2018-12-03 04:05:48,812 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 04:05:48,812 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-12-03 04:05:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 04:05:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 04:05:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 04:05:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 04:05:48,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-03 04:05:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:05:48,813 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 04:05:48,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 04:05:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 04:05:48,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 04:05:48,816 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-03 04:05:48,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:05:48 BasicIcfg [2018-12-03 04:05:48,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 04:05:48,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 04:05:48,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 04:05:48,818 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 04:05:48,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:05:48" (3/4) ... [2018-12-03 04:05:48,821 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 04:05:48,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-03 04:05:48,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-03 04:05:48,830 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-03 04:05:48,830 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 04:05:48,860 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_76ecaf79-63e5-4618-8130-01df8a7c8582/bin-2019/utaipan/witness.graphml [2018-12-03 04:05:48,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 04:05:48,860 INFO L168 Benchmark]: Toolchain (without parser) took 1383.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.0 MB in the beginning and 956.7 MB in the end (delta: -698.4 kB). Peak memory consumption was 137.2 MB. Max. memory is 11.5 GB. [2018-12-03 04:05:48,862 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:05:48,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-03 04:05:48,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.86 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. [2018-12-03 04:05:48,862 INFO L168 Benchmark]: Boogie Preprocessor took 15.22 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-03 04:05:48,863 INFO L168 Benchmark]: RCFGBuilder took 176.60 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: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-12-03 04:05:48,863 INFO L168 Benchmark]: TraceAbstraction took 788.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.0 MB in the end (delta: 132.1 MB). Peak memory consumption was 132.1 MB. Max. memory is 11.5 GB. [2018-12-03 04:05:48,863 INFO L168 Benchmark]: Witness Printer took 42.61 ms. Allocated memory is still 1.2 GB. Free memory was 960.0 MB in the beginning and 956.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-03 04:05:48,865 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.22 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.60 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: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 788.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.0 MB in the end (delta: 132.1 MB). Peak memory consumption was 132.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.61 ms. Allocated memory is still 1.2 GB. Free memory was 960.0 MB in the beginning and 956.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 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 5 procedures, 54 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 165 SDtfs, 204 SDslu, 504 SDs, 0 SdLazy, 86 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 7961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...