./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/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 abb802517c610366cb77ccac88e232235807913c .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:11,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:11,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:11,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:11,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:11,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:11,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:11,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:11,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:11,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:11,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:11,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:11,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:11,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:11,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:11,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:11,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:11,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:11,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:11,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:11,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:11,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:11,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:11,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:11,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:11,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:11,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:11,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:11,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:11,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:11,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:11,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:11,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:11,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:11,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:11,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:11,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:11,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:11,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:11,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:11,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:11,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:11,639 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:11,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:11,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:11,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:11,640 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:11,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:11,641 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:11,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:11,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:11,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:11,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:11,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:11,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:11,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:11,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:11,642 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:11,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:11,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:11,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:11,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:11,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:11,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:11,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:11,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:11,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:11,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:11,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:11,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:11,645 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_1d0bafe9-efe0-41a2-8467-4d13b65bff65/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 -> abb802517c610366cb77ccac88e232235807913c [2019-11-25 08:51:11,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:11,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:11,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:11,803 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:11,804 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:11,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i [2019-11-25 08:51:11,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/data/19f23558f/c752e4dfdffb4619a3cbc986b43fac1c/FLAG25268d557 [2019-11-25 08:51:12,318 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:12,319 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/sv-benchmarks/c/pthread-wmm/thin000_tso.opt.i [2019-11-25 08:51:12,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/data/19f23558f/c752e4dfdffb4619a3cbc986b43fac1c/FLAG25268d557 [2019-11-25 08:51:12,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/data/19f23558f/c752e4dfdffb4619a3cbc986b43fac1c [2019-11-25 08:51:12,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:12,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:12,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:12,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:12,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:12,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:12" (1/1) ... [2019-11-25 08:51:12,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de307c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:12, skipping insertion in model container [2019-11-25 08:51:12,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:12" (1/1) ... [2019-11-25 08:51:12,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:12,882 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:13,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:13,311 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:13,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:13,430 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:13,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13 WrapperNode [2019-11-25 08:51:13,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:13,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:13,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:13,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:13,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:13,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:13,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:13,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:13,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... [2019-11-25 08:51:13,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:13,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:13,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:13,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:13,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/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 [2019-11-25 08:51:13,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:51:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:51:13,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:51:13,577 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:51:13,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:51:13,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:51:13,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:13,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:13,579 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:51:13,838 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:13,838 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:51:13,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:13 BoogieIcfgContainer [2019-11-25 08:51:13,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:13,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:13,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:13,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:13,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:12" (1/3) ... [2019-11-25 08:51:13,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350bf2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:13, skipping insertion in model container [2019-11-25 08:51:13,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:13" (2/3) ... [2019-11-25 08:51:13,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350bf2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:13, skipping insertion in model container [2019-11-25 08:51:13,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:13" (3/3) ... [2019-11-25 08:51:13,845 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2019-11-25 08:51:13,890 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,891 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,891 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,891 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,892 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,892 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,892 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,893 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,893 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,893 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,893 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,893 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,894 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,894 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,895 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,895 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,895 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,896 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,896 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,896 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,896 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,896 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,897 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,897 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,897 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,897 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,898 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,898 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,898 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,898 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,899 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,899 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,899 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,899 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:13,926 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:51:13,926 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:13,931 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:13,940 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:13,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:13,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:13,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:13,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:13,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:13,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:13,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:13,956 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:13,965 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-25 08:51:14,014 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 287 states. [2019-11-25 08:51:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2019-11-25 08:51:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:51:14,025 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:14,025 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:14,026 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:14,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:14,031 INFO L82 PathProgramCache]: Analyzing trace with hash -410351249, now seen corresponding path program 1 times [2019-11-25 08:51:14,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:14,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424322402] [2019-11-25 08:51:14,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:14,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424322402] [2019-11-25 08:51:14,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:14,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:51:14,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305340441] [2019-11-25 08:51:14,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:14,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:14,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:14,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:14,343 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2019-11-25 08:51:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:14,419 INFO L93 Difference]: Finished difference Result 288 states and 647 transitions. [2019-11-25 08:51:14,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:51:14,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-25 08:51:14,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:14,437 INFO L225 Difference]: With dead ends: 288 [2019-11-25 08:51:14,437 INFO L226 Difference]: Without dead ends: 152 [2019-11-25 08:51:14,438 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-25 08:51:14,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-25 08:51:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-25 08:51:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 326 transitions. [2019-11-25 08:51:14,482 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 326 transitions. Word has length 26 [2019-11-25 08:51:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:14,483 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 326 transitions. [2019-11-25 08:51:14,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 326 transitions. [2019-11-25 08:51:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-25 08:51:14,485 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:14,485 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:14,486 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:14,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:14,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1300883899, now seen corresponding path program 1 times [2019-11-25 08:51:14,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:14,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876065618] [2019-11-25 08:51:14,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:14,628 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876065618] [2019-11-25 08:51:14,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:14,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:51:14,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591657677] [2019-11-25 08:51:14,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:51:14,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:14,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:51:14,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:14,631 INFO L87 Difference]: Start difference. First operand 152 states and 326 transitions. Second operand 5 states. [2019-11-25 08:51:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:14,689 INFO L93 Difference]: Finished difference Result 125 states and 242 transitions. [2019-11-25 08:51:14,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:51:14,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-25 08:51:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:14,691 INFO L225 Difference]: With dead ends: 125 [2019-11-25 08:51:14,691 INFO L226 Difference]: Without dead ends: 110 [2019-11-25 08:51:14,692 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:51:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-25 08:51:14,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-25 08:51:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-25 08:51:14,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 214 transitions. [2019-11-25 08:51:14,703 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 214 transitions. Word has length 27 [2019-11-25 08:51:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:14,703 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 214 transitions. [2019-11-25 08:51:14,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:51:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 214 transitions. [2019-11-25 08:51:14,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:51:14,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:14,705 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:14,705 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:14,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:14,706 INFO L82 PathProgramCache]: Analyzing trace with hash 707336749, now seen corresponding path program 1 times [2019-11-25 08:51:14,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:14,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861195619] [2019-11-25 08:51:14,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:14,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861195619] [2019-11-25 08:51:14,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:14,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:51:14,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958720219] [2019-11-25 08:51:14,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:51:14,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:14,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:51:14,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:51:14,924 INFO L87 Difference]: Start difference. First operand 110 states and 214 transitions. Second operand 7 states. [2019-11-25 08:51:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:15,031 INFO L93 Difference]: Finished difference Result 164 states and 331 transitions. [2019-11-25 08:51:15,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:15,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-25 08:51:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:15,033 INFO L225 Difference]: With dead ends: 164 [2019-11-25 08:51:15,033 INFO L226 Difference]: Without dead ends: 95 [2019-11-25 08:51:15,033 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:51:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-25 08:51:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-11-25 08:51:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-25 08:51:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 184 transitions. [2019-11-25 08:51:15,043 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 184 transitions. Word has length 28 [2019-11-25 08:51:15,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:15,043 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 184 transitions. [2019-11-25 08:51:15,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:51:15,043 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2019-11-25 08:51:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:51:15,045 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:15,045 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:15,045 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:15,045 INFO L82 PathProgramCache]: Analyzing trace with hash 523853883, now seen corresponding path program 2 times [2019-11-25 08:51:15,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:15,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678959409] [2019-11-25 08:51:15,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:15,172 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678959409] [2019-11-25 08:51:15,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:15,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:51:15,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499186851] [2019-11-25 08:51:15,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:51:15,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:15,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:51:15,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:51:15,174 INFO L87 Difference]: Start difference. First operand 95 states and 184 transitions. Second operand 8 states. [2019-11-25 08:51:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:15,273 INFO L93 Difference]: Finished difference Result 77 states and 142 transitions. [2019-11-25 08:51:15,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:51:15,274 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-11-25 08:51:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:15,274 INFO L225 Difference]: With dead ends: 77 [2019-11-25 08:51:15,275 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:51:15,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:51:15,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:51:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:51:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:51:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:51:15,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-25 08:51:15,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:15,276 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:15,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:51:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:15,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:51:15,280 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:51:15,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:15 BasicIcfg [2019-11-25 08:51:15,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:15,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:15,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:15,286 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:15,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:13" (3/4) ... [2019-11-25 08:51:15,290 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:51:15,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:51:15,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:51:15,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-25 08:51:15,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:51:15,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:51:15,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d0bafe9-efe0-41a2-8467-4d13b65bff65/bin/uautomizer/witness.graphml [2019-11-25 08:51:15,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:15,369 INFO L168 Benchmark]: Toolchain (without parser) took 2539.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.4 MB in the beginning and 931.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 131.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:15,369 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-11-25 08:51:15,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -138.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:15,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:15,377 INFO L168 Benchmark]: Boogie Preprocessor took 41.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:15,378 INFO L168 Benchmark]: RCFGBuilder took 314.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:15,378 INFO L168 Benchmark]: TraceAbstraction took 1445.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.3 MB in the end (delta: 115.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:15,379 INFO L168 Benchmark]: Witness Printer took 81.69 ms. Allocated memory is still 1.1 GB. Free memory was 938.3 MB in the beginning and 931.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:15,381 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 601.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -138.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 314.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1445.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.3 MB in the end (delta: 115.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 11.5 GB. * Witness Printer took 81.69 ms. Allocated memory is still 1.1 GB. Free memory was 938.3 MB in the beginning and 931.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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 9 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 153 SDslu, 353 SDs, 0 SdLazy, 60 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 8463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...