./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_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_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/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 0432eb3059c3be158123a55a9751b2d8aae1e269 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:59:52,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:59:52,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:59:52,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:59:52,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:59:52,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:59:52,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:59:52,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:59:52,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:59:52,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:59:52,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:59:52,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:59:52,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:59:52,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:59:52,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:59:52,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:59:52,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:59:52,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:59:52,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:59:52,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:59:52,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:59:52,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:59:52,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:59:52,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:59:52,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:59:52,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:59:52,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:59:52,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:59:52,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:59:52,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:59:52,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:59:52,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:59:52,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:59:52,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:59:52,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:59:52,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:59:52,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:59:52,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:59:52,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:59:52,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:59:52,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:59:52,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:59:52,906 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:59:52,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:59:52,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:59:52,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:59:52,908 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:59:52,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:59:52,908 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:59:52,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:59:52,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:59:52,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:59:52,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:59:52,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:59:52,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:59:52,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:59:52,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:59:52,909 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:59:52,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:59:52,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:59:52,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:59:52,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:59:52,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:59:52,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:59:52,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:59:52,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:59:52,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:59:52,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:59:52,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:59:52,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:59:52,915 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_9ec36118-2c69-4cb4-8d89-bd921d5779a4/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 -> 0432eb3059c3be158123a55a9751b2d8aae1e269 [2019-11-19 23:59:53,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:59:53,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:59:53,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:59:53,068 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:59:53,068 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:59:53,069 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe002_tso.opt.i [2019-11-19 23:59:53,138 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/data/7d8395265/a4c699f5cdd0403192811958ed9891ac/FLAGecc618298 [2019-11-19 23:59:53,528 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:59:53,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/sv-benchmarks/c/pthread-wmm/safe002_tso.opt.i [2019-11-19 23:59:53,544 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/data/7d8395265/a4c699f5cdd0403192811958ed9891ac/FLAGecc618298 [2019-11-19 23:59:53,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/data/7d8395265/a4c699f5cdd0403192811958ed9891ac [2019-11-19 23:59:53,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:59:53,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:59:53,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:59:53,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:59:53,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:59:53,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:59:53" (1/1) ... [2019-11-19 23:59:53,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561d113f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:53, skipping insertion in model container [2019-11-19 23:59:53,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:59:53" (1/1) ... [2019-11-19 23:59:53,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:59:53,941 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:59:54,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:59:54,426 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:59:54,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:59:54,568 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:59:54,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54 WrapperNode [2019-11-19 23:59:54,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:59:54,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:59:54,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:59:54,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:59:54,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:59:54,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:59:54,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:59:54,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:59:54,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... [2019-11-19 23:59:54,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:59:54,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:59:54,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:59:54,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:59:54,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/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 [2019-11-19 23:59:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:59:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 23:59:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:59:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:59:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 23:59:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 23:59:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 23:59:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 23:59:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-19 23:59:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-19 23:59:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 23:59:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:59:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:59:54,761 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-19 23:59:55,185 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:59:55,185 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 23:59:55,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:59:55 BoogieIcfgContainer [2019-11-19 23:59:55,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:59:55,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:59:55,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:59:55,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:59:55,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:59:53" (1/3) ... [2019-11-19 23:59:55,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576e9434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:59:55, skipping insertion in model container [2019-11-19 23:59:55,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:59:54" (2/3) ... [2019-11-19 23:59:55,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576e9434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:59:55, skipping insertion in model container [2019-11-19 23:59:55,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:59:55" (3/3) ... [2019-11-19 23:59:55,193 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2019-11-19 23:59:55,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,245 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,246 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,247 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,247 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,248 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,248 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,248 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,248 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,248 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,248 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,249 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,249 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,250 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,250 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,251 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,252 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,252 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,252 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,253 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,253 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,255 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,255 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,256 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:59:55,287 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 23:59:55,287 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:59:55,292 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:59:55,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:59:55,322 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:59:55,322 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:59:55,323 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:59:55,323 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:59:55,323 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:59:55,323 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:59:55,323 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:59:55,323 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:59:55,336 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-19 23:59:58,880 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-19 23:59:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-19 23:59:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-19 23:59:58,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:59:58,939 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] [2019-11-19 23:59:58,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:59:58,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:59:58,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1461473904, now seen corresponding path program 1 times [2019-11-19 23:59:58,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:59:58,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734572439] [2019-11-19 23:59:58,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:59:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:59:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:59:59,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734572439] [2019-11-19 23:59:59,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:59:59,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:59:59,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056407997] [2019-11-19 23:59:59,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:59:59,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:59:59,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:59:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:59:59,299 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-19 23:59:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:59:59,772 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-19 23:59:59,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:59:59,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-19 23:59:59,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:59:59,927 INFO L225 Difference]: With dead ends: 33013 [2019-11-19 23:59:59,927 INFO L226 Difference]: Without dead ends: 14275 [2019-11-19 23:59:59,929 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 00:00:00,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-20 00:00:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-20 00:00:00,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-20 00:00:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-20 00:00:00,959 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-20 00:00:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:00,960 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-20 00:00:00,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 00:00:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-20 00:00:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 00:00:00,989 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:00:00,989 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 00:00:00,990 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:00:00,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:00:00,998 INFO L82 PathProgramCache]: Analyzing trace with hash -334066509, now seen corresponding path program 1 times [2019-11-20 00:00:00,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:00:00,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189957618] [2019-11-20 00:00:00,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:00:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:00:01,190 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 00:00:01,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189957618] [2019-11-20 00:00:01,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:00:01,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 00:00:01,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459297124] [2019-11-20 00:00:01,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:00:01,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:00:01,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:00:01,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:00:01,192 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-20 00:00:01,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:00:01,523 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-20 00:00:01,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:00:01,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 00:00:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:00:01,592 INFO L225 Difference]: With dead ends: 14275 [2019-11-20 00:00:01,592 INFO L226 Difference]: Without dead ends: 12574 [2019-11-20 00:00:01,593 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 00:00:01,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-20 00:00:02,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-20 00:00:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-20 00:00:02,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-20 00:00:02,085 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-20 00:00:02,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:02,086 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-20 00:00:02,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:00:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-20 00:00:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 00:00:02,112 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:00:02,113 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 00:00:02,113 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:00:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:00:02,114 INFO L82 PathProgramCache]: Analyzing trace with hash 528050760, now seen corresponding path program 1 times [2019-11-20 00:00:02,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:00:02,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632248285] [2019-11-20 00:00:02,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:00:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:00:02,266 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 00:00:02,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632248285] [2019-11-20 00:00:02,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:00:02,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 00:00:02,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837918921] [2019-11-20 00:00:02,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:00:02,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:00:02,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:00:02,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:00:02,268 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-20 00:00:02,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:00:02,495 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-20 00:00:02,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 00:00:02,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 00:00:02,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:00:02,519 INFO L225 Difference]: With dead ends: 8929 [2019-11-20 00:00:02,519 INFO L226 Difference]: Without dead ends: 7471 [2019-11-20 00:00:02,520 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 00:00:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-20 00:00:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-20 00:00:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-20 00:00:02,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-20 00:00:02,733 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-20 00:00:02,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:02,734 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-20 00:00:02,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:00:02,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-20 00:00:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 00:00:02,752 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:00:02,752 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, 1] [2019-11-20 00:00:02,752 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:00:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:00:02,753 INFO L82 PathProgramCache]: Analyzing trace with hash -383045095, now seen corresponding path program 1 times [2019-11-20 00:00:02,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:00:02,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765897685] [2019-11-20 00:00:02,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:00:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:00:02,930 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 00:00:02,930 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765897685] [2019-11-20 00:00:02,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:00:02,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 00:00:02,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021651194] [2019-11-20 00:00:02,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:00:02,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:00:02,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:00:02,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:00:02,932 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 6 states. [2019-11-20 00:00:03,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:00:03,158 INFO L93 Difference]: Finished difference Result 12655 states and 35496 transitions. [2019-11-20 00:00:03,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:00:03,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-20 00:00:03,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:00:03,181 INFO L225 Difference]: With dead ends: 12655 [2019-11-20 00:00:03,181 INFO L226 Difference]: Without dead ends: 8038 [2019-11-20 00:00:03,182 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 00:00:03,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2019-11-20 00:00:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 7228. [2019-11-20 00:00:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7228 states. [2019-11-20 00:00:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7228 states to 7228 states and 20322 transitions. [2019-11-20 00:00:03,573 INFO L78 Accepts]: Start accepts. Automaton has 7228 states and 20322 transitions. Word has length 34 [2019-11-20 00:00:03,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:03,574 INFO L462 AbstractCegarLoop]: Abstraction has 7228 states and 20322 transitions. [2019-11-20 00:00:03,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:00:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7228 states and 20322 transitions. [2019-11-20 00:00:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 00:00:03,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:00:03,586 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, 1] [2019-11-20 00:00:03,586 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:00:03,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:00:03,587 INFO L82 PathProgramCache]: Analyzing trace with hash -556292787, now seen corresponding path program 2 times [2019-11-20 00:00:03,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:00:03,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138298530] [2019-11-20 00:00:03,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:00:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:00:03,762 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 00:00:03,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138298530] [2019-11-20 00:00:03,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:00:03,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 00:00:03,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166714352] [2019-11-20 00:00:03,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:00:03,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:00:03,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:00:03,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:00:03,764 INFO L87 Difference]: Start difference. First operand 7228 states and 20322 transitions. Second operand 8 states. [2019-11-20 00:00:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:00:03,961 INFO L93 Difference]: Finished difference Result 12169 states and 34200 transitions. [2019-11-20 00:00:03,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 00:00:03,962 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 00:00:03,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:00:03,999 INFO L225 Difference]: With dead ends: 12169 [2019-11-20 00:00:04,000 INFO L226 Difference]: Without dead ends: 7003 [2019-11-20 00:00:04,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-20 00:00:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7003 states. [2019-11-20 00:00:04,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7003 to 7003. [2019-11-20 00:00:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7003 states. [2019-11-20 00:00:04,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 19692 transitions. [2019-11-20 00:00:04,165 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 19692 transitions. Word has length 34 [2019-11-20 00:00:04,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:04,165 INFO L462 AbstractCegarLoop]: Abstraction has 7003 states and 19692 transitions. [2019-11-20 00:00:04,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:00:04,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 19692 transitions. [2019-11-20 00:00:04,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 00:00:04,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:00:04,176 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, 1] [2019-11-20 00:00:04,176 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:00:04,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:00:04,176 INFO L82 PathProgramCache]: Analyzing trace with hash -874361065, now seen corresponding path program 3 times [2019-11-20 00:00:04,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:00:04,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581291232] [2019-11-20 00:00:04,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:00:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:00:04,304 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 00:00:04,304 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581291232] [2019-11-20 00:00:04,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:00:04,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 00:00:04,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053931897] [2019-11-20 00:00:04,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 00:00:04,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:00:04,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 00:00:04,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:00:04,305 INFO L87 Difference]: Start difference. First operand 7003 states and 19692 transitions. Second operand 7 states. [2019-11-20 00:00:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:00:04,488 INFO L93 Difference]: Finished difference Result 11620 states and 32652 transitions. [2019-11-20 00:00:04,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 00:00:04,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-20 00:00:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:00:04,525 INFO L225 Difference]: With dead ends: 11620 [2019-11-20 00:00:04,526 INFO L226 Difference]: Without dead ends: 6922 [2019-11-20 00:00:04,526 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 00:00:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6922 states. [2019-11-20 00:00:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6922 to 6922. [2019-11-20 00:00:04,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6922 states. [2019-11-20 00:00:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 19530 transitions. [2019-11-20 00:00:04,690 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 19530 transitions. Word has length 34 [2019-11-20 00:00:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:04,690 INFO L462 AbstractCegarLoop]: Abstraction has 6922 states and 19530 transitions. [2019-11-20 00:00:04,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 00:00:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 19530 transitions. [2019-11-20 00:00:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 00:00:04,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:00:04,698 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, 1] [2019-11-20 00:00:04,699 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:00:04,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:00:04,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1825151999, now seen corresponding path program 4 times [2019-11-20 00:00:04,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:00:04,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327504316] [2019-11-20 00:00:04,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:00:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:00:04,812 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 00:00:04,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327504316] [2019-11-20 00:00:04,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:00:04,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 00:00:04,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068833982] [2019-11-20 00:00:04,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:00:04,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:00:04,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:00:04,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:00:04,813 INFO L87 Difference]: Start difference. First operand 6922 states and 19530 transitions. Second operand 8 states. [2019-11-20 00:00:05,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:00:05,002 INFO L93 Difference]: Finished difference Result 5464 states and 15156 transitions. [2019-11-20 00:00:05,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 00:00:05,002 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 00:00:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:00:05,004 INFO L225 Difference]: With dead ends: 5464 [2019-11-20 00:00:05,004 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:00:05,004 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-20 00:00:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:00:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:00:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:00:05,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:00:05,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-20 00:00:05,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:00:05,006 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:00:05,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:00:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:00:05,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:00:05,009 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 00:00:05,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:00:05 BasicIcfg [2019-11-20 00:00:05,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:00:05,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:00:05,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:00:05,012 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:00:05,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:59:55" (3/4) ... [2019-11-20 00:00:05,017 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:00:05,038 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 00:00:05,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 00:00:05,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 00:00:05,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 00:00:05,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 00:00:05,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 00:00:05,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ec36118-2c69-4cb4-8d89-bd921d5779a4/bin/uautomizer/witness.graphml [2019-11-20 00:00:05,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:00:05,102 INFO L168 Benchmark]: Toolchain (without parser) took 11234.93 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 655.9 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -68.1 MB). Peak memory consumption was 587.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:00:05,102 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:00:05,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:00:05,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:00:05,113 INFO L168 Benchmark]: Boogie Preprocessor took 42.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:00:05,114 INFO L168 Benchmark]: RCFGBuilder took 507.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:00:05,114 INFO L168 Benchmark]: TraceAbstraction took 9823.99 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 551.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.5 MB). Peak memory consumption was 562.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:00:05,115 INFO L168 Benchmark]: Witness Printer took 87.76 ms. Allocated memory is still 1.7 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:00:05,116 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 702.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 507.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9823.99 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 551.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.5 MB). Peak memory consumption was 562.6 MB. Max. memory is 11.5 GB. * Witness Printer took 87.76 ms. Allocated memory is still 1.7 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 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, 90 locations, 1 error locations. Result: SAFE, OverallTime: 9.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 657 SDtfs, 995 SDslu, 1660 SDs, 0 SdLazy, 309 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31744occurred 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: 2.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 810 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 21969 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...