./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/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 4accf54732b54d332687e8ae80cd0f2166ab28a4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:43:23,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:43:23,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:43:23,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:43:23,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:43:23,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:43:23,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:43:23,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:43:23,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:43:23,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:43:23,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:43:23,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:43:23,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:43:23,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:43:23,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:43:23,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:43:23,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:43:23,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:43:23,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:43:23,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:43:23,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:43:23,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:43:23,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:43:23,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:43:23,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:43:23,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:43:23,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:43:23,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:43:23,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:43:23,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:43:23,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:43:23,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:43:23,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:43:23,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:43:23,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:43:23,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:43:23,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:43:23,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:43:23,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:43:23,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:43:23,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:43:23,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:43:23,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:43:23,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:43:23,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:43:23,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:43:23,766 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:43:23,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:43:23,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:43:23,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:43:23,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:43:23,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:43:23,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:43:23,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:43:23,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:43:23,768 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:43:23,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:43:23,768 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:43:23,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:43:23,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:43:23,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:43:23,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:43:23,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:43:23,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:43:23,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:43:23,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:43:23,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:43:23,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:43:23,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:43:23,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:43:23,772 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_c6f96d2e-6257-423e-9512-7589327ec7ed/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 -> 4accf54732b54d332687e8ae80cd0f2166ab28a4 [2019-11-20 03:43:23,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:43:23,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:43:23,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:43:23,953 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:43:23,953 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:43:23,954 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i [2019-11-20 03:43:24,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/data/985fc5dc5/51ea429c75fb4303942b7cad2c0cca5b/FLAG4ec663e0d [2019-11-20 03:43:24,473 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:43:24,477 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i [2019-11-20 03:43:24,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/data/985fc5dc5/51ea429c75fb4303942b7cad2c0cca5b/FLAG4ec663e0d [2019-11-20 03:43:24,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/data/985fc5dc5/51ea429c75fb4303942b7cad2c0cca5b [2019-11-20 03:43:24,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:43:24,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:43:24,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:43:24,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:43:24,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:43:24,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:43:24" (1/1) ... [2019-11-20 03:43:24,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbca7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:24, skipping insertion in model container [2019-11-20 03:43:24,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:43:24" (1/1) ... [2019-11-20 03:43:24,827 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:43:24,863 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:43:25,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:43:25,220 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:43:25,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:43:25,366 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:43:25,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25 WrapperNode [2019-11-20 03:43:25,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:43:25,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:43:25,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:43:25,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:43:25,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:43:25,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:43:25,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:43:25,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:43:25,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... [2019-11-20 03:43:25,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:43:25,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:43:25,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:43:25,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:43:25,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/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 [2019-11-20 03:43:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:43:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 03:43:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:43:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:43:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 03:43:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 03:43:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 03:43:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 03:43:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 03:43:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 03:43:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 03:43:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:43:25,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:43:25,526 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 03:43:25,949 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:43:25,949 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 03:43:25,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:43:25 BoogieIcfgContainer [2019-11-20 03:43:25,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:43:25,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:43:25,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:43:25,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:43:25,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:43:24" (1/3) ... [2019-11-20 03:43:25,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f19ad8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:43:25, skipping insertion in model container [2019-11-20 03:43:25,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:43:25" (2/3) ... [2019-11-20 03:43:25,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f19ad8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:43:25, skipping insertion in model container [2019-11-20 03:43:25,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:43:25" (3/3) ... [2019-11-20 03:43:25,964 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.opt.i [2019-11-20 03:43:26,030 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,030 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,031 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,031 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,031 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,031 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,033 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,033 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,033 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,033 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,034 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,034 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,034 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,034 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,035 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,036 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,036 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,036 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,037 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,037 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,037 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,038 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,039 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,039 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,039 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,039 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,040 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,040 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,041 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,041 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,043 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,044 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,046 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,048 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,048 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:43:26,089 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 03:43:26,089 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:43:26,096 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 03:43:26,109 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 03:43:26,126 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:43:26,126 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:43:26,127 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:43:26,127 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:43:26,127 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:43:26,127 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:43:26,127 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:43:26,127 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:43:26,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-20 03:43:29,667 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31743 states. [2019-11-20 03:43:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 31743 states. [2019-11-20 03:43:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 03:43:29,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:29,736 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:29,737 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:29,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:29,742 INFO L82 PathProgramCache]: Analyzing trace with hash -167790918, now seen corresponding path program 1 times [2019-11-20 03:43:29,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:29,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727768163] [2019-11-20 03:43:29,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:30,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727768163] [2019-11-20 03:43:30,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:30,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:43:30,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292095864] [2019-11-20 03:43:30,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:43:30,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:30,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:43:30,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:43:30,091 INFO L87 Difference]: Start difference. First operand 31743 states. Second operand 4 states. [2019-11-20 03:43:30,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:30,810 INFO L93 Difference]: Finished difference Result 33012 states and 103292 transitions. [2019-11-20 03:43:30,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:43:30,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-20 03:43:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:30,969 INFO L225 Difference]: With dead ends: 33012 [2019-11-20 03:43:30,969 INFO L226 Difference]: Without dead ends: 14274 [2019-11-20 03:43:30,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:43:31,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14274 states. [2019-11-20 03:43:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14274 to 14274. [2019-11-20 03:43:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14274 states. [2019-11-20 03:43:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 44297 transitions. [2019-11-20 03:43:31,708 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 44297 transitions. Word has length 30 [2019-11-20 03:43:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:31,709 INFO L462 AbstractCegarLoop]: Abstraction has 14274 states and 44297 transitions. [2019-11-20 03:43:31,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:43:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 44297 transitions. [2019-11-20 03:43:31,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 03:43:31,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:31,735 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:31,736 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:31,743 INFO L82 PathProgramCache]: Analyzing trace with hash -250949596, now seen corresponding path program 1 times [2019-11-20 03:43:31,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:31,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609450649] [2019-11-20 03:43:31,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:31,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609450649] [2019-11-20 03:43:31,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:31,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:43:31,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200054846] [2019-11-20 03:43:31,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:43:31,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:31,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:43:31,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:43:31,925 INFO L87 Difference]: Start difference. First operand 14274 states and 44297 transitions. Second operand 5 states. [2019-11-20 03:43:32,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:32,279 INFO L93 Difference]: Finished difference Result 14274 states and 42110 transitions. [2019-11-20 03:43:32,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:43:32,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-20 03:43:32,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:32,352 INFO L225 Difference]: With dead ends: 14274 [2019-11-20 03:43:32,352 INFO L226 Difference]: Without dead ends: 12573 [2019-11-20 03:43:32,354 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:43:32,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2019-11-20 03:43:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 12573. [2019-11-20 03:43:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12573 states. [2019-11-20 03:43:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12573 states to 12573 states and 38060 transitions. [2019-11-20 03:43:32,857 INFO L78 Accepts]: Start accepts. Automaton has 12573 states and 38060 transitions. Word has length 31 [2019-11-20 03:43:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:32,858 INFO L462 AbstractCegarLoop]: Abstraction has 12573 states and 38060 transitions. [2019-11-20 03:43:32,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:43:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand 12573 states and 38060 transitions. [2019-11-20 03:43:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 03:43:32,882 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:32,882 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:32,883 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:32,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:32,883 INFO L82 PathProgramCache]: Analyzing trace with hash 377526638, now seen corresponding path program 1 times [2019-11-20 03:43:32,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:32,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902049847] [2019-11-20 03:43:32,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:33,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902049847] [2019-11-20 03:43:33,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:33,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 03:43:33,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992535450] [2019-11-20 03:43:33,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:43:33,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:33,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:43:33,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:43:33,049 INFO L87 Difference]: Start difference. First operand 12573 states and 38060 transitions. Second operand 6 states. [2019-11-20 03:43:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:33,212 INFO L93 Difference]: Finished difference Result 8928 states and 24938 transitions. [2019-11-20 03:43:33,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:43:33,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-20 03:43:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:33,234 INFO L225 Difference]: With dead ends: 8928 [2019-11-20 03:43:33,234 INFO L226 Difference]: Without dead ends: 7470 [2019-11-20 03:43:33,234 INFO L630 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 [2019-11-20 03:43:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2019-11-20 03:43:33,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7470. [2019-11-20 03:43:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2019-11-20 03:43:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 21050 transitions. [2019-11-20 03:43:33,637 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 21050 transitions. Word has length 32 [2019-11-20 03:43:33,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:33,637 INFO L462 AbstractCegarLoop]: Abstraction has 7470 states and 21050 transitions. [2019-11-20 03:43:33,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:43:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 21050 transitions. [2019-11-20 03:43:33,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:43:33,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:33,652 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:33,653 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:33,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:33,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1986897837, now seen corresponding path program 1 times [2019-11-20 03:43:33,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:33,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263119248] [2019-11-20 03:43:33,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:33,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263119248] [2019-11-20 03:43:33,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:33,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 03:43:33,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810375831] [2019-11-20 03:43:33,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:43:33,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:33,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:43:33,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:43:33,774 INFO L87 Difference]: Start difference. First operand 7470 states and 21050 transitions. Second operand 6 states. [2019-11-20 03:43:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:33,966 INFO L93 Difference]: Finished difference Result 12654 states and 35495 transitions. [2019-11-20 03:43:33,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:43:33,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 03:43:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:33,989 INFO L225 Difference]: With dead ends: 12654 [2019-11-20 03:43:33,989 INFO L226 Difference]: Without dead ends: 8037 [2019-11-20 03:43:33,989 INFO L630 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 [2019-11-20 03:43:34,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2019-11-20 03:43:34,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7227. [2019-11-20 03:43:34,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7227 states. [2019-11-20 03:43:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 20321 transitions. [2019-11-20 03:43:34,185 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 20321 transitions. Word has length 33 [2019-11-20 03:43:34,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:34,185 INFO L462 AbstractCegarLoop]: Abstraction has 7227 states and 20321 transitions. [2019-11-20 03:43:34,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:43:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 20321 transitions. [2019-11-20 03:43:34,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:43:34,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:34,198 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:34,198 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:34,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:34,198 INFO L82 PathProgramCache]: Analyzing trace with hash -272533419, now seen corresponding path program 2 times [2019-11-20 03:43:34,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:34,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190319923] [2019-11-20 03:43:34,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:34,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190319923] [2019-11-20 03:43:34,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:34,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:43:34,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578281097] [2019-11-20 03:43:34,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:43:34,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:34,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:43:34,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:43:34,351 INFO L87 Difference]: Start difference. First operand 7227 states and 20321 transitions. Second operand 7 states. [2019-11-20 03:43:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:34,542 INFO L93 Difference]: Finished difference Result 12168 states and 34199 transitions. [2019-11-20 03:43:34,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:43:34,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-20 03:43:34,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:34,563 INFO L225 Difference]: With dead ends: 12168 [2019-11-20 03:43:34,563 INFO L226 Difference]: Without dead ends: 7038 [2019-11-20 03:43:34,564 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-20 03:43:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2019-11-20 03:43:34,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 7038. [2019-11-20 03:43:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7038 states. [2019-11-20 03:43:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7038 states to 7038 states and 19781 transitions. [2019-11-20 03:43:34,735 INFO L78 Accepts]: Start accepts. Automaton has 7038 states and 19781 transitions. Word has length 33 [2019-11-20 03:43:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:34,736 INFO L462 AbstractCegarLoop]: Abstraction has 7038 states and 19781 transitions. [2019-11-20 03:43:34,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:43:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7038 states and 19781 transitions. [2019-11-20 03:43:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:43:34,747 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:34,747 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:34,747 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:34,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:34,748 INFO L82 PathProgramCache]: Analyzing trace with hash -285174897, now seen corresponding path program 3 times [2019-11-20 03:43:34,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:34,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802725702] [2019-11-20 03:43:34,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:34,886 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802725702] [2019-11-20 03:43:34,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:34,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:43:34,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746685730] [2019-11-20 03:43:34,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:43:34,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:34,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:43:34,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:43:34,888 INFO L87 Difference]: Start difference. First operand 7038 states and 19781 transitions. Second operand 7 states. [2019-11-20 03:43:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:35,054 INFO L93 Difference]: Finished difference Result 11655 states and 32741 transitions. [2019-11-20 03:43:35,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:43:35,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-20 03:43:35,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:35,087 INFO L225 Difference]: With dead ends: 11655 [2019-11-20 03:43:35,087 INFO L226 Difference]: Without dead ends: 6957 [2019-11-20 03:43:35,088 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:43:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2019-11-20 03:43:35,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 6957. [2019-11-20 03:43:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6957 states. [2019-11-20 03:43:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6957 states to 6957 states and 19619 transitions. [2019-11-20 03:43:35,251 INFO L78 Accepts]: Start accepts. Automaton has 6957 states and 19619 transitions. Word has length 33 [2019-11-20 03:43:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:35,252 INFO L462 AbstractCegarLoop]: Abstraction has 6957 states and 19619 transitions. [2019-11-20 03:43:35,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:43:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6957 states and 19619 transitions. [2019-11-20 03:43:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:43:35,261 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:43:35,261 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:43:35,262 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:43:35,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:43:35,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1147266817, now seen corresponding path program 4 times [2019-11-20 03:43:35,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:43:35,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196223361] [2019-11-20 03:43:35,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:43:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:43:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:43:35,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196223361] [2019-11-20 03:43:35,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:43:35,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:43:35,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439910944] [2019-11-20 03:43:35,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:43:35,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:43:35,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:43:35,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:43:35,380 INFO L87 Difference]: Start difference. First operand 6957 states and 19619 transitions. Second operand 7 states. [2019-11-20 03:43:35,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:43:35,493 INFO L93 Difference]: Finished difference Result 5499 states and 15245 transitions. [2019-11-20 03:43:35,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:43:35,493 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-20 03:43:35,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:43:35,493 INFO L225 Difference]: With dead ends: 5499 [2019-11-20 03:43:35,493 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 03:43:35,494 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:43:35,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 03:43:35,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 03:43:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 03:43:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 03:43:35,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-20 03:43:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:43:35,495 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:43:35,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:43:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:43:35,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:43:35,498 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 03:43:35,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:43:35 BasicIcfg [2019-11-20 03:43:35,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:43:35,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:43:35,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:43:35,502 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:43:35,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:43:25" (3/4) ... [2019-11-20 03:43:35,507 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:43:35,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 03:43:35,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 03:43:35,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 03:43:35,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 03:43:35,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 03:43:35,533 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 03:43:35,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6f96d2e-6257-423e-9512-7589327ec7ed/bin/uautomizer/witness.graphml [2019-11-20 03:43:35,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:43:35,589 INFO L168 Benchmark]: Toolchain (without parser) took 10774.79 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 680.5 MB). Free memory was 944.8 MB in the beginning and 944.5 MB in the end (delta: 295.2 kB). Peak memory consumption was 680.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:43:35,589 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:43:35,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:43:35,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.16 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. [2019-11-20 03:43:35,591 INFO L168 Benchmark]: Boogie Preprocessor took 29.41 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:43:35,591 INFO L168 Benchmark]: RCFGBuilder took 482.42 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:43:35,591 INFO L168 Benchmark]: TraceAbstraction took 9549.11 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 535.3 MB). Free memory was 1.1 GB in the beginning and 949.5 MB in the end (delta: 131.1 MB). Peak memory consumption was 666.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:43:35,592 INFO L168 Benchmark]: Witness Printer took 86.39 ms. Allocated memory is still 1.7 GB. Free memory was 949.5 MB in the beginning and 944.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:43:35,594 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 552.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.16 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 29.41 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 482.42 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9549.11 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 535.3 MB). Free memory was 1.1 GB in the beginning and 949.5 MB in the end (delta: 131.1 MB). Peak memory consumption was 666.4 MB. Max. memory is 11.5 GB. * Witness Printer took 86.39 ms. Allocated memory is still 1.7 GB. Free memory was 949.5 MB in the beginning and 944.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 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 13 procedures, 89 locations, 1 error locations. Result: SAFE, OverallTime: 9.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 677 SDtfs, 893 SDslu, 1705 SDs, 0 SdLazy, 243 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31743occurred 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: 2.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 810 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 18650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...