./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0c4b02bc25104859076c6cd72166b3ed67280db ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:59:10,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:59:10,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:59:10,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:59:10,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:59:10,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:59:10,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:59:10,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:59:10,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:59:10,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:59:10,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:59:10,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:59:10,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:59:10,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:59:10,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:59:10,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:59:10,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:59:10,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:59:10,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:59:10,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:59:10,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:59:10,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:59:10,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:59:10,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:59:10,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:59:10,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:59:10,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:59:10,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:59:10,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:59:10,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:59:10,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:59:10,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:59:10,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:59:10,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:59:10,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:59:10,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:59:10,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:59:10,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:59:10,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:59:10,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:59:10,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:59:10,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:59:10,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:59:10,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:59:10,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:59:10,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:59:10,436 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:59:10,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:59:10,437 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:59:10,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:59:10,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:59:10,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:59:10,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:59:10,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:59:10,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:59:10,439 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:59:10,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:59:10,439 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:59:10,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:59:10,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:59:10,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:59:10,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:59:10,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:59:10,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:59:10,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:59:10,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:59:10,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:59:10,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:59:10,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:59:10,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:59:10,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer 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 -> Automizer 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 -> a0c4b02bc25104859076c6cd72166b3ed67280db [2019-11-15 20:59:10,467 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:59:10,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:59:10,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:59:10,481 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:59:10,481 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:59:10,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2019-11-15 20:59:10,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/data/7b7d3a490/debfeb9b16da41a49c496f488f5db74c/FLAGc638280f6 [2019-11-15 20:59:10,967 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:59:10,968 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2019-11-15 20:59:10,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/data/7b7d3a490/debfeb9b16da41a49c496f488f5db74c/FLAGc638280f6 [2019-11-15 20:59:11,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/data/7b7d3a490/debfeb9b16da41a49c496f488f5db74c [2019-11-15 20:59:11,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:59:11,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:59:11,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:59:11,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:59:11,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:59:11,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:11,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41310824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11, skipping insertion in model container [2019-11-15 20:59:11,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:11,351 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:59:11,389 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:59:11,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:59:11,814 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:59:11,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:59:11,938 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:59:11,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11 WrapperNode [2019-11-15 20:59:11,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:59:11,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:59:11,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:59:11,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:59:11,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:11,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:11,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:59:11,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:59:11,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:59:11,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:59:11,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:11,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:12,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:12,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:12,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:12,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:12,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... [2019-11-15 20:59:12,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:59:12,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:59:12,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:59:12,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:59:12,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/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 [2019-11-15 20:59:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:59:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 20:59:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:59:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:59:12,113 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 20:59:12,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 20:59:12,114 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 20:59:12,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 20:59:12,114 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 20:59:12,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 20:59:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 20:59:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:59:12,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:59:12,118 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 20:59:12,524 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:59:12,524 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:59:12,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:59:12 BoogieIcfgContainer [2019-11-15 20:59:12,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:59:12,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:59:12,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:59:12,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:59:12,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:59:11" (1/3) ... [2019-11-15 20:59:12,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea20063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:59:12, skipping insertion in model container [2019-11-15 20:59:12,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:59:11" (2/3) ... [2019-11-15 20:59:12,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea20063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:59:12, skipping insertion in model container [2019-11-15 20:59:12,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:59:12" (3/3) ... [2019-11-15 20:59:12,532 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2019-11-15 20:59:12,570 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,570 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,570 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,570 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,571 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,571 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,572 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,572 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,572 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,572 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,573 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,573 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,573 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,574 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,574 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,574 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,574 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,575 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:59:12,586 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 20:59:12,587 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:59:12,595 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:59:12,604 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:59:12,622 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:59:12,622 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:59:12,622 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:59:12,622 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:59:12,623 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:59:12,623 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:59:12,623 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:59:12,623 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:59:12,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 20:59:12,714 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 20:59:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 20:59:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:59:12,731 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:12,732 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:12,738 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:12,744 INFO L82 PathProgramCache]: Analyzing trace with hash 720223975, now seen corresponding path program 1 times [2019-11-15 20:59:12,752 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:59:12,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956973417] [2019-11-15 20:59:12,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:12,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:12,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:59:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:59:13,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956973417] [2019-11-15 20:59:13,102 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:13,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:59:13,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830208668] [2019-11-15 20:59:13,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:59:13,107 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:59:13,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:59:13,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:59:13,122 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 20:59:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:13,213 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 20:59:13,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:59:13,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 20:59:13,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:13,250 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 20:59:13,250 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 20:59:13,252 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:59:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 20:59:13,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 20:59:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 20:59:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 20:59:13,332 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 20:59:13,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:13,332 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 20:59:13,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:59:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 20:59:13,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 20:59:13,336 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:13,336 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:13,336 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:13,337 INFO L82 PathProgramCache]: Analyzing trace with hash 850051549, now seen corresponding path program 1 times [2019-11-15 20:59:13,337 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:59:13,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377633867] [2019-11-15 20:59:13,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:13,338 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:13,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:59:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:59:13,501 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377633867] [2019-11-15 20:59:13,501 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:13,502 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:59:13,502 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770521950] [2019-11-15 20:59:13,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:59:13,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:59:13,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:59:13,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:59:13,504 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 20:59:13,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:13,612 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 20:59:13,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:59:13,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 20:59:13,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:13,618 INFO L225 Difference]: With dead ends: 600 [2019-11-15 20:59:13,618 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 20:59:13,619 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:59:13,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 20:59:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 20:59:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 20:59:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 20:59:13,650 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 20:59:13,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:13,650 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 20:59:13,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:59:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 20:59:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 20:59:13,653 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:13,654 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:13,654 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:13,654 INFO L82 PathProgramCache]: Analyzing trace with hash -335397692, now seen corresponding path program 1 times [2019-11-15 20:59:13,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:59:13,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639848554] [2019-11-15 20:59:13,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:13,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:13,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:59:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:59:13,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639848554] [2019-11-15 20:59:13,782 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:13,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 20:59:13,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691883522] [2019-11-15 20:59:13,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:59:13,783 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:59:13,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:59:13,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:59:13,783 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 20:59:13,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:13,899 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 20:59:13,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:59:13,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 20:59:13,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:13,902 INFO L225 Difference]: With dead ends: 402 [2019-11-15 20:59:13,902 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 20:59:13,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:59:13,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 20:59:13,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 20:59:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 20:59:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 20:59:13,916 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 20:59:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:13,916 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 20:59:13,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:59:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 20:59:13,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 20:59:13,918 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:13,918 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:13,918 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:13,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:13,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1628377498, now seen corresponding path program 1 times [2019-11-15 20:59:13,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:59:13,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834419218] [2019-11-15 20:59:13,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:13,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:13,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:59:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:59:14,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834419218] [2019-11-15 20:59:14,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:14,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 20:59:14,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22168918] [2019-11-15 20:59:14,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:59:14,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:59:14,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:59:14,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:59:14,079 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-11-15 20:59:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:14,320 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2019-11-15 20:59:14,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 20:59:14,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 20:59:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:14,324 INFO L225 Difference]: With dead ends: 726 [2019-11-15 20:59:14,325 INFO L226 Difference]: Without dead ends: 267 [2019-11-15 20:59:14,325 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-11-15 20:59:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-11-15 20:59:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2019-11-15 20:59:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-11-15 20:59:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 701 transitions. [2019-11-15 20:59:14,337 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 701 transitions. Word has length 33 [2019-11-15 20:59:14,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:14,337 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 701 transitions. [2019-11-15 20:59:14,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:59:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 701 transitions. [2019-11-15 20:59:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 20:59:14,340 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:14,340 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:59:14,340 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:14,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:14,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1444270720, now seen corresponding path program 2 times [2019-11-15 20:59:14,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:59:14,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313375965] [2019-11-15 20:59:14,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:14,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:59:14,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:59:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:59:14,516 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313375965] [2019-11-15 20:59:14,516 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:14,516 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 20:59:14,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745006309] [2019-11-15 20:59:14,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:59:14,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:59:14,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:59:14,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:59:14,518 INFO L87 Difference]: Start difference. First operand 267 states and 701 transitions. Second operand 8 states. [2019-11-15 20:59:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:14,618 INFO L93 Difference]: Finished difference Result 213 states and 539 transitions. [2019-11-15 20:59:14,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:59:14,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 20:59:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:14,619 INFO L225 Difference]: With dead ends: 213 [2019-11-15 20:59:14,619 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:59:14,619 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 20:59:14,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:59:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:59:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:59:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:59:14,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 20:59:14,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:14,620 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:59:14,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:59:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:59:14,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:59:14,624 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 20:59:14,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:59:14 BasicIcfg [2019-11-15 20:59:14,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:59:14,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:59:14,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:59:14,626 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:59:14,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:59:12" (3/4) ... [2019-11-15 20:59:14,630 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:59:14,636 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 20:59:14,636 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 20:59:14,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 20:59:14,640 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 20:59:14,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 20:59:14,687 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fc2a4787-9171-4799-8b11-f56fd4320cd2/bin/uautomizer/witness.graphml [2019-11-15 20:59:14,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:59:14,690 INFO L168 Benchmark]: Toolchain (without parser) took 3349.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.4 MB in the beginning and 894.8 MB in the end (delta: 44.6 MB). Peak memory consumption was 195.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:59:14,691 INFO L168 Benchmark]: CDTParser took 0.21 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. [2019-11-15 20:59:14,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:59:14,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.86 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. [2019-11-15 20:59:14,695 INFO L168 Benchmark]: Boogie Preprocessor took 56.88 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. [2019-11-15 20:59:14,696 INFO L168 Benchmark]: RCFGBuilder took 477.86 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. [2019-11-15 20:59:14,696 INFO L168 Benchmark]: TraceAbstraction took 2099.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.1 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:59:14,699 INFO L168 Benchmark]: Witness Printer took 61.78 ms. Allocated memory is still 1.2 GB. Free memory was 900.1 MB in the beginning and 894.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:59:14,703 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 599.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.86 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 56.88 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 477.86 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 2099.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.1 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. * Witness Printer took 61.78 ms. Allocated memory is still 1.2 GB. Free memory was 900.1 MB in the beginning and 894.8 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: 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 7 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 347 SDslu, 563 SDs, 0 SdLazy, 89 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 14990 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...