./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/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 62eab7c7adc1c6127f2b486315a22ea7b9450bc8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:52:27,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:27,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:27,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:27,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:27,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:27,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:27,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:27,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:27,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:27,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:27,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:27,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:27,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:27,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:27,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:27,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:27,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:27,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:27,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:27,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:27,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:27,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:27,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:27,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:27,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:27,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:27,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:27,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:27,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:27,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:27,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:27,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:27,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:27,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:27,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:27,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:27,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:27,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:27,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:27,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:27,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:27,967 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:27,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:27,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:27,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:27,969 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:27,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:27,969 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:27,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:27,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:27,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:27,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:27,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:27,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:27,971 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:27,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:27,972 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:27,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:27,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:27,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:27,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:27,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:27,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:27,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:27,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:27,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:27,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:27,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:27,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:27,975 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_32242773-e422-4733-bcbe-4a7acf0f6ca0/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 -> 62eab7c7adc1c6127f2b486315a22ea7b9450bc8 [2019-11-25 08:52:28,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:28,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:28,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:28,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:28,151 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:28,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i [2019-11-25 08:52:28,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/data/826a9dfd5/ab1e3ff8b3f54b32801f482cfd8a1bc3/FLAG117450ba2 [2019-11-25 08:52:28,715 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:28,716 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/sv-benchmarks/c/pthread-wmm/thin002_pso.opt.i [2019-11-25 08:52:28,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/data/826a9dfd5/ab1e3ff8b3f54b32801f482cfd8a1bc3/FLAG117450ba2 [2019-11-25 08:52:29,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/data/826a9dfd5/ab1e3ff8b3f54b32801f482cfd8a1bc3 [2019-11-25 08:52:29,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:29,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:29,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:29,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:29,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:29,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1634f5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29, skipping insertion in model container [2019-11-25 08:52:29,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:29,227 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:29,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:29,672 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:29,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:29,801 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:29,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29 WrapperNode [2019-11-25 08:52:29,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:29,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:29,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:29,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:29,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:29,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:29,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:29,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:29,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... [2019-11-25 08:52:29,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:29,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:29,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:29,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:29,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:29,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:52:29,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:52:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:52:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:52:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:52:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:52:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:52:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:52:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:52:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:52:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:52:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:29,965 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:52:30,301 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:30,301 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:52:30,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:30 BoogieIcfgContainer [2019-11-25 08:52:30,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:30,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:30,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:30,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:30,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:29" (1/3) ... [2019-11-25 08:52:30,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368fcdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:30, skipping insertion in model container [2019-11-25 08:52:30,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:29" (2/3) ... [2019-11-25 08:52:30,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368fcdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:30, skipping insertion in model container [2019-11-25 08:52:30,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:30" (3/3) ... [2019-11-25 08:52:30,309 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2019-11-25 08:52:30,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,359 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,359 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,359 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,359 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,360 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,360 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,360 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,360 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,360 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,360 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,361 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,361 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,362 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,362 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,362 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,362 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,363 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,365 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,365 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,367 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,367 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,368 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,368 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,368 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,368 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,368 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,370 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,370 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,370 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,371 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,371 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,371 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,371 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,371 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,372 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,372 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,372 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,372 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,372 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,372 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,373 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,373 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,373 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,373 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,373 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,374 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:52:30,410 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:52:30,411 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:30,417 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:30,426 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:30,443 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:30,443 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:30,443 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:30,443 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:30,443 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:30,443 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:30,444 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:30,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:30,454 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 95 transitions [2019-11-25 08:52:31,018 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5475 states. [2019-11-25 08:52:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states. [2019-11-25 08:52:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:52:31,052 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:31,053 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, 1, 1, 1, 1] [2019-11-25 08:52:31,053 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:31,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:31,059 INFO L82 PathProgramCache]: Analyzing trace with hash 531103723, now seen corresponding path program 1 times [2019-11-25 08:52:31,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:31,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107560275] [2019-11-25 08:52:31,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:31,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107560275] [2019-11-25 08:52:31,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:31,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:52:31,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588374633] [2019-11-25 08:52:31,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:52:31,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:31,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:52:31,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:52:31,476 INFO L87 Difference]: Start difference. First operand 5475 states. Second operand 4 states. [2019-11-25 08:52:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:31,712 INFO L93 Difference]: Finished difference Result 5712 states and 21937 transitions. [2019-11-25 08:52:31,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:52:31,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-25 08:52:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:31,775 INFO L225 Difference]: With dead ends: 5712 [2019-11-25 08:52:31,775 INFO L226 Difference]: Without dead ends: 2396 [2019-11-25 08:52:31,777 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:31,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2019-11-25 08:52:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2019-11-25 08:52:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2019-11-25 08:52:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 8940 transitions. [2019-11-25 08:52:31,940 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 8940 transitions. Word has length 38 [2019-11-25 08:52:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:31,941 INFO L462 AbstractCegarLoop]: Abstraction has 2396 states and 8940 transitions. [2019-11-25 08:52:31,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:52:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 8940 transitions. [2019-11-25 08:52:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:52:31,946 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:31,946 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, 1, 1, 1, 1, 1] [2019-11-25 08:52:31,946 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash 246307377, now seen corresponding path program 1 times [2019-11-25 08:52:31,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:31,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814355114] [2019-11-25 08:52:31,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:32,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814355114] [2019-11-25 08:52:32,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:32,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:32,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887213897] [2019-11-25 08:52:32,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:32,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:32,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:32,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:32,060 INFO L87 Difference]: Start difference. First operand 2396 states and 8940 transitions. Second operand 5 states. [2019-11-25 08:52:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:32,148 INFO L93 Difference]: Finished difference Result 2567 states and 9324 transitions. [2019-11-25 08:52:32,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:52:32,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2019-11-25 08:52:32,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:32,171 INFO L225 Difference]: With dead ends: 2567 [2019-11-25 08:52:32,171 INFO L226 Difference]: Without dead ends: 2312 [2019-11-25 08:52:32,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2019-11-25 08:52:32,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2019-11-25 08:52:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2019-11-25 08:52:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 8548 transitions. [2019-11-25 08:52:32,270 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 8548 transitions. Word has length 39 [2019-11-25 08:52:32,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:32,270 INFO L462 AbstractCegarLoop]: Abstraction has 2312 states and 8548 transitions. [2019-11-25 08:52:32,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:32,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 8548 transitions. [2019-11-25 08:52:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:52:32,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:32,274 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, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:32,274 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:32,274 INFO L82 PathProgramCache]: Analyzing trace with hash 2135304403, now seen corresponding path program 1 times [2019-11-25 08:52:32,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:32,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151514901] [2019-11-25 08:52:32,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:32,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151514901] [2019-11-25 08:52:32,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:32,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:52:32,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222135322] [2019-11-25 08:52:32,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:52:32,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:32,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:52:32,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:52:32,390 INFO L87 Difference]: Start difference. First operand 2312 states and 8548 transitions. Second operand 6 states. [2019-11-25 08:52:32,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:32,498 INFO L93 Difference]: Finished difference Result 2177 states and 7684 transitions. [2019-11-25 08:52:32,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:32,499 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-11-25 08:52:32,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:32,516 INFO L225 Difference]: With dead ends: 2177 [2019-11-25 08:52:32,517 INFO L226 Difference]: Without dead ends: 1934 [2019-11-25 08:52:32,517 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 [2019-11-25 08:52:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2019-11-25 08:52:32,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2019-11-25 08:52:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-11-25 08:52:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 6910 transitions. [2019-11-25 08:52:32,588 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 6910 transitions. Word has length 40 [2019-11-25 08:52:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:32,588 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 6910 transitions. [2019-11-25 08:52:32,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:52:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 6910 transitions. [2019-11-25 08:52:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-25 08:52:32,593 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:32,593 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:32,593 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:32,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1682641852, now seen corresponding path program 1 times [2019-11-25 08:52:32,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:32,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322161523] [2019-11-25 08:52:32,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:32,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322161523] [2019-11-25 08:52:32,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:32,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:32,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041558281] [2019-11-25 08:52:32,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:32,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:32,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:32,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:32,716 INFO L87 Difference]: Start difference. First operand 1934 states and 6910 transitions. Second operand 7 states. [2019-11-25 08:52:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:32,848 INFO L93 Difference]: Finished difference Result 1367 states and 4534 transitions. [2019-11-25 08:52:32,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:52:32,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-25 08:52:32,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:32,858 INFO L225 Difference]: With dead ends: 1367 [2019-11-25 08:52:32,859 INFO L226 Difference]: Without dead ends: 1178 [2019-11-25 08:52:32,859 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-11-25 08:52:32,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2019-11-25 08:52:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2019-11-25 08:52:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 3886 transitions. [2019-11-25 08:52:32,896 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 3886 transitions. Word has length 41 [2019-11-25 08:52:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:32,896 INFO L462 AbstractCegarLoop]: Abstraction has 1178 states and 3886 transitions. [2019-11-25 08:52:32,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 3886 transitions. [2019-11-25 08:52:32,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:52:32,900 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:32,900 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:32,900 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:32,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:32,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1085706427, now seen corresponding path program 1 times [2019-11-25 08:52:32,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:32,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721803540] [2019-11-25 08:52:32,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:33,062 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721803540] [2019-11-25 08:52:33,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:33,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:52:33,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919282749] [2019-11-25 08:52:33,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:33,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:33,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:33,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:33,063 INFO L87 Difference]: Start difference. First operand 1178 states and 3886 transitions. Second operand 8 states. [2019-11-25 08:52:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:33,177 INFO L93 Difference]: Finished difference Result 1871 states and 6223 transitions. [2019-11-25 08:52:33,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:52:33,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-25 08:52:33,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:33,186 INFO L225 Difference]: With dead ends: 1871 [2019-11-25 08:52:33,187 INFO L226 Difference]: Without dead ends: 1082 [2019-11-25 08:52:33,187 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:52:33,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2019-11-25 08:52:33,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1082. [2019-11-25 08:52:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2019-11-25 08:52:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 3538 transitions. [2019-11-25 08:52:33,270 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 3538 transitions. Word has length 42 [2019-11-25 08:52:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:33,271 INFO L462 AbstractCegarLoop]: Abstraction has 1082 states and 3538 transitions. [2019-11-25 08:52:33,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 3538 transitions. [2019-11-25 08:52:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:52:33,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:33,274 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:33,274 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:33,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:33,274 INFO L82 PathProgramCache]: Analyzing trace with hash 590924317, now seen corresponding path program 2 times [2019-11-25 08:52:33,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:33,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149964314] [2019-11-25 08:52:33,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:33,464 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149964314] [2019-11-25 08:52:33,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:33,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:52:33,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897016216] [2019-11-25 08:52:33,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:33,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:33,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:33,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:33,466 INFO L87 Difference]: Start difference. First operand 1082 states and 3538 transitions. Second operand 8 states. [2019-11-25 08:52:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:33,575 INFO L93 Difference]: Finished difference Result 1604 states and 5341 transitions. [2019-11-25 08:52:33,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:33,575 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-25 08:52:33,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:33,582 INFO L225 Difference]: With dead ends: 1604 [2019-11-25 08:52:33,582 INFO L226 Difference]: Without dead ends: 827 [2019-11-25 08:52:33,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:52:33,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-11-25 08:52:33,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2019-11-25 08:52:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-11-25 08:52:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2722 transitions. [2019-11-25 08:52:33,612 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2722 transitions. Word has length 42 [2019-11-25 08:52:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:33,612 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 2722 transitions. [2019-11-25 08:52:33,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2722 transitions. [2019-11-25 08:52:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:52:33,615 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:33,616 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:33,616 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 235616253, now seen corresponding path program 3 times [2019-11-25 08:52:33,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:33,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581947476] [2019-11-25 08:52:33,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:33,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581947476] [2019-11-25 08:52:33,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:33,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:33,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096986895] [2019-11-25 08:52:33,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:33,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:33,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:33,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:33,763 INFO L87 Difference]: Start difference. First operand 827 states and 2722 transitions. Second operand 7 states. [2019-11-25 08:52:33,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:33,885 INFO L93 Difference]: Finished difference Result 1340 states and 4504 transitions. [2019-11-25 08:52:33,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:33,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-11-25 08:52:33,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:33,892 INFO L225 Difference]: With dead ends: 1340 [2019-11-25 08:52:33,892 INFO L226 Difference]: Without dead ends: 779 [2019-11-25 08:52:33,893 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:33,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2019-11-25 08:52:33,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2019-11-25 08:52:33,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2019-11-25 08:52:33,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 2578 transitions. [2019-11-25 08:52:33,917 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 2578 transitions. Word has length 42 [2019-11-25 08:52:33,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:33,918 INFO L462 AbstractCegarLoop]: Abstraction has 779 states and 2578 transitions. [2019-11-25 08:52:33,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:33,918 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 2578 transitions. [2019-11-25 08:52:33,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-25 08:52:33,920 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:33,920 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:33,920 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:33,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:33,921 INFO L82 PathProgramCache]: Analyzing trace with hash -501530371, now seen corresponding path program 4 times [2019-11-25 08:52:33,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:33,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065188499] [2019-11-25 08:52:33,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:34,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065188499] [2019-11-25 08:52:34,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:34,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:34,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483182898] [2019-11-25 08:52:34,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:34,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:34,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:34,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:34,060 INFO L87 Difference]: Start difference. First operand 779 states and 2578 transitions. Second operand 7 states. [2019-11-25 08:52:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:34,146 INFO L93 Difference]: Finished difference Result 617 states and 1984 transitions. [2019-11-25 08:52:34,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:34,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-11-25 08:52:34,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:34,146 INFO L225 Difference]: With dead ends: 617 [2019-11-25 08:52:34,146 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:52:34,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:52:34,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:52:34,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:52:34,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:52:34,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-11-25 08:52:34,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:34,148 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:52:34,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:52:34,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:52:34,151 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:52:34,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:34 BasicIcfg [2019-11-25 08:52:34,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:34,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:34,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:34,154 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:34,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:30" (3/4) ... [2019-11-25 08:52:34,157 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:52:34,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:52:34,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:52:34,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:52:34,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:52:34,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:52:34,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:52:34,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:52:34,224 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_32242773-e422-4733-bcbe-4a7acf0f6ca0/bin/uautomizer/witness.graphml [2019-11-25 08:52:34,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:34,230 INFO L168 Benchmark]: Toolchain (without parser) took 5052.83 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.3 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -108.0 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:34,231 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-11-25 08:52:34,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:34,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.44 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. [2019-11-25 08:52:34,232 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:34,232 INFO L168 Benchmark]: RCFGBuilder took 421.53 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:34,233 INFO L168 Benchmark]: TraceAbstraction took 3849.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 98.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:34,233 INFO L168 Benchmark]: Witness Printer took 70.97 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:34,235 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 628.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.44 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 24.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 421.53 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3849.89 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 98.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.97 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 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 17 procedures, 115 locations, 1 error locations. Result: SAFE, OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 836 SDslu, 1295 SDs, 0 SdLazy, 177 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 39038 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...