./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/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 d2f1d49c580bca4d5b85d43e4dafc84e50b5610c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:46,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:46,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:46,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:46,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:46,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:46,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:46,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:46,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:46,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:46,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:46,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:46,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:46,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:46,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:46,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:46,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:46,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:46,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:46,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:46,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:46,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:46,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:46,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:46,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:46,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:46,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:46,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:46,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:46,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:46,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:46,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:46,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:46,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:46,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:46,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:46,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:46,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:46,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:46,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:46,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:46,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:46,875 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:46,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:46,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:46,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:46,876 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:46,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:46,877 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:46,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:46,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:46,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:46,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:46,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:46,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:46,878 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:46,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:46,879 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:46,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:46,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:46,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:46,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:46,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:46,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:46,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:46,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:46,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:46,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:46,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:46,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:46,881 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/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/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 -> d2f1d49c580bca4d5b85d43e4dafc84e50b5610c [2019-10-22 08:57:46,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:46,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:46,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:46,929 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:46,929 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:46,930 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2019-10-22 08:57:46,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/data/04eb2a89e/8c416e79336246f787d37b9edcb79ea5/FLAG56e0cf3b5 [2019-10-22 08:57:47,417 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:47,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2019-10-22 08:57:47,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/data/04eb2a89e/8c416e79336246f787d37b9edcb79ea5/FLAG56e0cf3b5 [2019-10-22 08:57:47,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/data/04eb2a89e/8c416e79336246f787d37b9edcb79ea5 [2019-10-22 08:57:47,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:47,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:47,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:47,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:47,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:47,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:47" (1/1) ... [2019-10-22 08:57:47,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639c601d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:47, skipping insertion in model container [2019-10-22 08:57:47,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:47" (1/1) ... [2019-10-22 08:57:47,789 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:47,835 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:48,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:48,183 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:48,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:48,298 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:48,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48 WrapperNode [2019-10-22 08:57:48,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:48,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:48,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:48,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:48,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:48,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:48,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:48,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:48,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... [2019-10-22 08:57:48,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:48,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:48,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:48,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:48,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/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 [2019-10-22 08:57:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:57:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:57:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:57:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:57:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:57:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:57:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:57:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:57:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:48,453 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:57:48,801 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:48,802 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:57:48,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:48 BoogieIcfgContainer [2019-10-22 08:57:48,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:48,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:48,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:48,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:48,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:47" (1/3) ... [2019-10-22 08:57:48,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698590fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:48, skipping insertion in model container [2019-10-22 08:57:48,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:48" (2/3) ... [2019-10-22 08:57:48,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698590fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:48, skipping insertion in model container [2019-10-22 08:57:48,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:48" (3/3) ... [2019-10-22 08:57:48,812 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2019-10-22 08:57:48,846 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,846 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,846 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,846 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,846 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,846 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,847 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,847 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,848 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,848 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,848 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,849 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,849 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,849 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,849 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,850 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,850 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,850 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,850 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,850 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,851 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,851 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,851 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,851 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,852 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,853 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,853 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,853 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,853 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,853 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:48,878 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:57:48,878 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:48,885 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:48,894 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:48,912 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:48,914 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:48,915 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:48,915 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:48,915 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:48,915 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:48,916 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:48,916 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:48,926 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions [2019-10-22 08:57:49,064 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-10-22 08:57:49,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-10-22 08:57:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 08:57:49,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:49,083 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] [2019-10-22 08:57:49,084 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:49,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:49,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1436525340, now seen corresponding path program 1 times [2019-10-22 08:57:49,093 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:49,093 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379702958] [2019-10-22 08:57:49,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:49,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:49,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:49,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379702958] [2019-10-22 08:57:49,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:49,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:49,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865032026] [2019-10-22 08:57:49,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:49,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:49,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:49,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:49,348 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-10-22 08:57:49,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:49,462 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-10-22 08:57:49,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:49,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 08:57:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:49,496 INFO L225 Difference]: With dead ends: 2491 [2019-10-22 08:57:49,500 INFO L226 Difference]: Without dead ends: 1126 [2019-10-22 08:57:49,501 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 [2019-10-22 08:57:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-10-22 08:57:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-10-22 08:57:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-10-22 08:57:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-10-22 08:57:49,619 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-10-22 08:57:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:49,619 INFO L462 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-10-22 08:57:49,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-10-22 08:57:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:57:49,623 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:49,623 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] [2019-10-22 08:57:49,623 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:49,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1185426072, now seen corresponding path program 1 times [2019-10-22 08:57:49,624 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:49,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668889963] [2019-10-22 08:57:49,624 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:49,624 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:49,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:49,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668889963] [2019-10-22 08:57:49,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:49,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:49,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797538962] [2019-10-22 08:57:49,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:49,769 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:49,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:49,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:49,769 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-10-22 08:57:49,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:49,835 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-10-22 08:57:49,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:49,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 08:57:49,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:49,842 INFO L225 Difference]: With dead ends: 1166 [2019-10-22 08:57:49,842 INFO L226 Difference]: Without dead ends: 1042 [2019-10-22 08:57:49,843 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 [2019-10-22 08:57:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-10-22 08:57:49,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-10-22 08:57:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-10-22 08:57:49,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-10-22 08:57:49,890 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-10-22 08:57:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:49,891 INFO L462 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-10-22 08:57:49,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:49,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-10-22 08:57:49,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:57:49,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:49,897 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] [2019-10-22 08:57:49,897 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:49,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:49,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1354593798, now seen corresponding path program 1 times [2019-10-22 08:57:49,898 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:49,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952273971] [2019-10-22 08:57:49,898 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:49,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:49,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:50,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952273971] [2019-10-22 08:57:50,012 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:50,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:57:50,012 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432029246] [2019-10-22 08:57:50,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:50,013 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:50,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:50,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:50,013 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-10-22 08:57:50,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:50,104 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-10-22 08:57:50,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:50,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 08:57:50,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:50,109 INFO L225 Difference]: With dead ends: 818 [2019-10-22 08:57:50,109 INFO L226 Difference]: Without dead ends: 706 [2019-10-22 08:57:50,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-22 08:57:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-10-22 08:57:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-22 08:57:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-10-22 08:57:50,163 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-10-22 08:57:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:50,163 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-10-22 08:57:50,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-10-22 08:57:50,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:57:50,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:50,165 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] [2019-10-22 08:57:50,165 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:50,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1357106860, now seen corresponding path program 1 times [2019-10-22 08:57:50,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:50,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016266872] [2019-10-22 08:57:50,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:50,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:50,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:50,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016266872] [2019-10-22 08:57:50,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:50,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:57:50,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285023795] [2019-10-22 08:57:50,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:50,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:50,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:50,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:50,350 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2019-10-22 08:57:50,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:50,436 INFO L93 Difference]: Finished difference Result 1106 states and 3289 transitions. [2019-10-22 08:57:50,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:50,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:57:50,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:50,440 INFO L225 Difference]: With dead ends: 1106 [2019-10-22 08:57:50,440 INFO L226 Difference]: Without dead ends: 590 [2019-10-22 08:57:50,441 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 [2019-10-22 08:57:50,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-22 08:57:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-10-22 08:57:50,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-22 08:57:50,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1753 transitions. [2019-10-22 08:57:50,458 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1753 transitions. Word has length 31 [2019-10-22 08:57:50,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:50,458 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 1753 transitions. [2019-10-22 08:57:50,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:50,459 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1753 transitions. [2019-10-22 08:57:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:57:50,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:50,462 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] [2019-10-22 08:57:50,463 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:50,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:50,463 INFO L82 PathProgramCache]: Analyzing trace with hash 478598006, now seen corresponding path program 2 times [2019-10-22 08:57:50,463 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:50,463 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89783611] [2019-10-22 08:57:50,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:50,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:50,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:50,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89783611] [2019-10-22 08:57:50,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:50,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:57:50,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281980931] [2019-10-22 08:57:50,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:50,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:50,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:50,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:50,617 INFO L87 Difference]: Start difference. First operand 590 states and 1753 transitions. Second operand 6 states. [2019-10-22 08:57:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:50,711 INFO L93 Difference]: Finished difference Result 462 states and 1337 transitions. [2019-10-22 08:57:50,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:50,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:57:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:50,712 INFO L225 Difference]: With dead ends: 462 [2019-10-22 08:57:50,712 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:50,712 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 [2019-10-22 08:57:50,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:50,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-22 08:57:50,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:50,713 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:50,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:50,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:50,717 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:57:50,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:50 BasicIcfg [2019-10-22 08:57:50,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:50,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:50,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:50,722 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:50,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:48" (3/4) ... [2019-10-22 08:57:50,725 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:50,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:57:50,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:57:50,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:57:50,737 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:57:50,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:57:50,779 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fb600b12-86c5-40ab-aba7-e86bb0b7df62/bin/uautomizer/witness.graphml [2019-10-22 08:57:50,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:50,783 INFO L168 Benchmark]: Toolchain (without parser) took 3006.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 939.1 MB in the beginning and 886.3 MB in the end (delta: 52.8 MB). Peak memory consumption was 219.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:50,783 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:50,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:50,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:50,784 INFO L168 Benchmark]: Boogie Preprocessor took 33.87 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: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:50,785 INFO L168 Benchmark]: RCFGBuilder took 416.14 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:50,785 INFO L168 Benchmark]: TraceAbstraction took 1917.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.7 MB in the end (delta: 205.1 MB). Peak memory consumption was 205.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:50,785 INFO L168 Benchmark]: Witness Printer took 60.15 ms. Allocated memory is still 1.2 GB. Free memory was 892.7 MB in the beginning and 886.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:50,792 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.87 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: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 416.14 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1917.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.7 MB in the end (delta: 205.1 MB). Peak memory consumption was 205.1 MB. Max. memory is 11.5 GB. * Witness Printer took 60.15 ms. Allocated memory is still 1.2 GB. Free memory was 892.7 MB in the beginning and 886.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 69 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 318 SDslu, 540 SDs, 0 SdLazy, 68 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 11118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...