./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.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_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/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 858eb92d9d907a95e1fa2c95755d1ad33d1f3141 ......................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:54:56,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:54:56,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:54:56,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:54:56,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:54:56,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:54:56,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:54:56,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:54:56,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:54:56,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:54:56,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:54:56,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:54:56,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:54:56,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:54:56,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:54:56,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:54:56,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:54:56,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:54:56,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:54:56,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:54:56,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:54:56,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:54:56,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:54:56,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:54:56,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:54:56,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:54:56,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:54:56,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:54:56,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:54:56,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:54:56,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:54:56,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:54:56,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:54:56,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:54:56,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:54:56,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:54:56,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:54:56,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:54:56,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:54:56,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:54:56,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:54:56,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:54:56,565 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:54:56,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:54:56,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:54:56,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:54:56,566 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:54:56,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:54:56,567 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:54:56,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:54:56,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:54:56,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:54:56,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:54:56,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:54:56,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:54:56,568 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:54:56,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:54:56,569 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:54:56,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:54:56,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:54:56,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:54:56,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:54:56,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:54:56,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:54:56,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:54:56,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:54:56,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:54:56,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:54:56,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:54:56,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:54:56,571 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_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/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 -> 858eb92d9d907a95e1fa2c95755d1ad33d1f3141 [2019-11-15 22:54:56,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:54:56,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:54:56,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:54:56,616 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:54:56,616 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:54:56,618 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-11-15 22:54:56,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/data/0a38cd6de/8491e2e7fd974ea992cdba585386719c/FLAG0b197a10e [2019-11-15 22:54:57,166 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:54:57,167 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-11-15 22:54:57,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/data/0a38cd6de/8491e2e7fd974ea992cdba585386719c/FLAG0b197a10e [2019-11-15 22:54:57,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/data/0a38cd6de/8491e2e7fd974ea992cdba585386719c [2019-11-15 22:54:57,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:54:57,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:54:57,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:54:57,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:54:57,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:54:57,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:54:57" (1/1) ... [2019-11-15 22:54:57,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484c8978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:57, skipping insertion in model container [2019-11-15 22:54:57,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:54:57" (1/1) ... [2019-11-15 22:54:57,704 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:54:57,741 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:54:58,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:54:58,108 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:54:58,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:54:58,219 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:54:58,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58 WrapperNode [2019-11-15 22:54:58,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:54:58,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:54:58,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:54:58,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:54:58,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:54:58,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:54:58,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:54:58,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:54:58,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... [2019-11-15 22:54:58,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:54:58,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:54:58,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:54:58,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:54:58,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/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 22:54:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:54:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 22:54:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:54:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:54:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 22:54:58,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 22:54:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 22:54:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 22:54:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 22:54:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 22:54:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 22:54:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:54:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:54:58,408 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 22:54:58,708 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:54:58,709 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:54:58,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:54:58 BoogieIcfgContainer [2019-11-15 22:54:58,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:54:58,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:54:58,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:54:58,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:54:58,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:54:57" (1/3) ... [2019-11-15 22:54:58,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a384bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:54:58, skipping insertion in model container [2019-11-15 22:54:58,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:54:58" (2/3) ... [2019-11-15 22:54:58,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a384bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:54:58, skipping insertion in model container [2019-11-15 22:54:58,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:54:58" (3/3) ... [2019-11-15 22:54:58,716 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2019-11-15 22:54:58,742 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,742 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,742 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,742 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,743 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,743 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,743 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,743 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,744 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,744 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,744 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,744 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,744 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,745 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,745 WARN L315 ript$VariableManager]: TermVariabe Thread2_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,745 WARN L315 ript$VariableManager]: TermVariabe Thread2_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,745 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,745 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:54:58,759 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 22:54:58,759 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:54:58,765 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:54:58,773 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:54:58,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:54:58,788 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:54:58,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:54:58,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:54:58,788 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:54:58,788 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:54:58,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:54:58,789 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:54:58,797 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 48 transitions [2019-11-15 22:54:58,884 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1245 states. [2019-11-15 22:54:58,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states. [2019-11-15 22:54:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 22:54:58,901 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:58,901 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] [2019-11-15 22:54:58,903 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:58,908 INFO L82 PathProgramCache]: Analyzing trace with hash 55768687, now seen corresponding path program 1 times [2019-11-15 22:54:58,916 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:54:58,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060544526] [2019-11-15 22:54:58,916 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:58,917 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:58,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:54:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:59,202 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 22:54:59,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060544526] [2019-11-15 22:54:59,203 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:54:59,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:54:59,204 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838266632] [2019-11-15 22:54:59,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:54:59,208 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:54:59,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:54:59,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:54:59,223 INFO L87 Difference]: Start difference. First operand 1245 states. Second operand 4 states. [2019-11-15 22:54:59,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:59,339 INFO L93 Difference]: Finished difference Result 1292 states and 3958 transitions. [2019-11-15 22:54:59,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:54:59,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-11-15 22:54:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:59,374 INFO L225 Difference]: With dead ends: 1292 [2019-11-15 22:54:59,374 INFO L226 Difference]: Without dead ends: 598 [2019-11-15 22:54:59,375 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 22:54:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2019-11-15 22:54:59,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2019-11-15 22:54:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2019-11-15 22:54:59,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1773 transitions. [2019-11-15 22:54:59,475 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1773 transitions. Word has length 28 [2019-11-15 22:54:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:59,476 INFO L462 AbstractCegarLoop]: Abstraction has 598 states and 1773 transitions. [2019-11-15 22:54:59,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:54:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1773 transitions. [2019-11-15 22:54:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 22:54:59,479 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:59,479 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] [2019-11-15 22:54:59,480 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:59,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:59,480 INFO L82 PathProgramCache]: Analyzing trace with hash -257354937, now seen corresponding path program 1 times [2019-11-15 22:54:59,480 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:54:59,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307168694] [2019-11-15 22:54:59,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:59,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:59,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:54:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:59,612 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 22:54:59,613 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307168694] [2019-11-15 22:54:59,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:54:59,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:54:59,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548185804] [2019-11-15 22:54:59,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:54:59,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:54:59,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:54:59,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:54:59,615 INFO L87 Difference]: Start difference. First operand 598 states and 1773 transitions. Second operand 5 states. [2019-11-15 22:54:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:59,680 INFO L93 Difference]: Finished difference Result 598 states and 1692 transitions. [2019-11-15 22:54:59,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:54:59,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-15 22:54:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:59,686 INFO L225 Difference]: With dead ends: 598 [2019-11-15 22:54:59,686 INFO L226 Difference]: Without dead ends: 535 [2019-11-15 22:54:59,687 INFO L600 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 [2019-11-15 22:54:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2019-11-15 22:54:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2019-11-15 22:54:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2019-11-15 22:54:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 1542 transitions. [2019-11-15 22:54:59,712 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 1542 transitions. Word has length 29 [2019-11-15 22:54:59,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:59,713 INFO L462 AbstractCegarLoop]: Abstraction has 535 states and 1542 transitions. [2019-11-15 22:54:59,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:54:59,713 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 1542 transitions. [2019-11-15 22:54:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 22:54:59,715 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:59,715 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 22:54:59,716 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:59,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:59,716 INFO L82 PathProgramCache]: Analyzing trace with hash 859056734, now seen corresponding path program 1 times [2019-11-15 22:54:59,716 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:54:59,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536766233] [2019-11-15 22:54:59,717 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:59,717 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:59,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:54:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:54:59,842 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 22:54:59,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536766233] [2019-11-15 22:54:59,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:54:59,843 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:54:59,843 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839056625] [2019-11-15 22:54:59,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:54:59,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:54:59,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:54:59,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:54:59,844 INFO L87 Difference]: Start difference. First operand 535 states and 1542 transitions. Second operand 6 states. [2019-11-15 22:54:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:54:59,947 INFO L93 Difference]: Finished difference Result 400 states and 1056 transitions. [2019-11-15 22:54:59,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:54:59,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-11-15 22:54:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:54:59,953 INFO L225 Difference]: With dead ends: 400 [2019-11-15 22:54:59,953 INFO L226 Difference]: Without dead ends: 346 [2019-11-15 22:54:59,953 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 22:54:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2019-11-15 22:54:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2019-11-15 22:54:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2019-11-15 22:54:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 912 transitions. [2019-11-15 22:54:59,966 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 912 transitions. Word has length 30 [2019-11-15 22:54:59,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:54:59,967 INFO L462 AbstractCegarLoop]: Abstraction has 346 states and 912 transitions. [2019-11-15 22:54:59,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:54:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 912 transitions. [2019-11-15 22:54:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 22:54:59,969 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:54:59,969 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 22:54:59,969 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:54:59,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:54:59,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2041543876, now seen corresponding path program 1 times [2019-11-15 22:54:59,970 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:54:59,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986591327] [2019-11-15 22:54:59,970 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:59,970 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:54:59,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:55:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:55:00,132 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 22:55:00,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986591327] [2019-11-15 22:55:00,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:55:00,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:55:00,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271007053] [2019-11-15 22:55:00,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:55:00,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:55:00,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:55:00,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:55:00,134 INFO L87 Difference]: Start difference. First operand 346 states and 912 transitions. Second operand 6 states. [2019-11-15 22:55:00,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:55:00,252 INFO L93 Difference]: Finished difference Result 292 states and 750 transitions. [2019-11-15 22:55:00,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:55:00,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-15 22:55:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:55:00,253 INFO L225 Difference]: With dead ends: 292 [2019-11-15 22:55:00,253 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:55:00,254 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:55:00,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:55:00,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:55:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:55:00,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:55:00,254 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-11-15 22:55:00,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:55:00,255 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:55:00,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:55:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:55:00,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:55:00,258 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 22:55:00,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:55:00 BasicIcfg [2019-11-15 22:55:00,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:55:00,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:55:00,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:55:00,261 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:55:00,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:54:58" (3/4) ... [2019-11-15 22:55:00,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:55:00,271 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 22:55:00,271 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 22:55:00,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 22:55:00,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 22:55:00,278 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:55:00,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c2ed5806-0816-48f6-9abd-9a26a14e1ac4/bin/uautomizer/witness.graphml [2019-11-15 22:55:00,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:55:00,355 INFO L168 Benchmark]: Toolchain (without parser) took 2663.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.4 MB in the beginning and 940.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:55:00,355 INFO L168 Benchmark]: CDTParser took 0.27 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 22:55:00,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:55:00,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.13 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 22:55:00,357 INFO L168 Benchmark]: Boogie Preprocessor took 42.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:55:00,357 INFO L168 Benchmark]: RCFGBuilder took 376.94 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:55:00,358 INFO L168 Benchmark]: TraceAbstraction took 1549.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.7 MB in the end (delta: 139.6 MB). Peak memory consumption was 139.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:55:00,358 INFO L168 Benchmark]: Witness Printer took 92.78 ms. Allocated memory is still 1.2 GB. Free memory is still 940.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:55:00,364 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 528.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.13 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 42.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 376.94 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1549.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.7 MB in the end (delta: 139.6 MB). Peak memory consumption was 139.6 MB. Max. memory is 11.5 GB. * Witness Printer took 92.78 ms. Allocated memory is still 1.2 GB. Free memory is still 940.7 MB. There was no memory consumed. 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, 63 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 236 SDslu, 299 SDs, 0 SdLazy, 50 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1245occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 9138 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...