./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/lamport_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/lamport_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/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 66ad1ff9e8f4055d6bc44dc751cea83862f50a74 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:51:01,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:51:01,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:51:01,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:51:01,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:51:01,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:51:01,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:51:01,921 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:51:01,922 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:51:01,923 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:51:01,924 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:51:01,924 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:51:01,925 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:51:01,925 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:51:01,926 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:51:01,927 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:51:01,927 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:51:01,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:51:01,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:51:01,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:51:01,931 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:51:01,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:51:01,934 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:51:01,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:51:01,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:51:01,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:51:01,935 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:51:01,936 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:51:01,937 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:51:01,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:51:01,938 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:51:01,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:51:01,938 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:51:01,938 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:51:01,939 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:51:01,939 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:51:01,940 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:51:01,949 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:51:01,949 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:51:01,950 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:51:01,950 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:51:01,951 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:51:01,951 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:51:01,951 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:51:01,951 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:51:01,951 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:51:01,951 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:51:01,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:51:01,953 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:51:01,953 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:51:01,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:51:01,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:51:01,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:51:01,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:51:01,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:51:01,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:51:01,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:51:01,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:51:01,954 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:51:01,954 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:51:01,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:51:01,955 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/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 -> 66ad1ff9e8f4055d6bc44dc751cea83862f50a74 [2018-11-28 12:51:01,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:51:01,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:51:01,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:51:01,990 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:51:01,990 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:51:01,991 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-atomic/lamport_true-unreach-call.i [2018-11-28 12:51:02,028 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/data/ad47cf839/363910577a494fb5a2d1609c42aafe09/FLAG4b298c5b7 [2018-11-28 12:51:02,368 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:51:02,368 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/sv-benchmarks/c/pthread-atomic/lamport_true-unreach-call.i [2018-11-28 12:51:02,376 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/data/ad47cf839/363910577a494fb5a2d1609c42aafe09/FLAG4b298c5b7 [2018-11-28 12:51:02,386 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/data/ad47cf839/363910577a494fb5a2d1609c42aafe09 [2018-11-28 12:51:02,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:51:02,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:51:02,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:51:02,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:51:02,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:51:02,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eb1ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02, skipping insertion in model container [2018-11-28 12:51:02,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:51:02,429 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:51:02,634 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:51:02,679 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:51:02,712 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:51:02,755 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:51:02,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02 WrapperNode [2018-11-28 12:51:02,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:51:02,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:51:02,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:51:02,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:51:02,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:51:02,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:51:02,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:51:02,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:51:02,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... [2018-11-28 12:51:02,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:51:02,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:51:02,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:51:02,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:51:02,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/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 [2018-11-28 12:51:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:51:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:51:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-28 12:51:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-28 12:51:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-28 12:51:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-28 12:51:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:51:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:51:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:51:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:51:02,838 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 12:51:03,066 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:51:03,066 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 12:51:03,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:51:03 BoogieIcfgContainer [2018-11-28 12:51:03,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:51:03,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:51:03,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:51:03,069 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:51:03,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:51:02" (1/3) ... [2018-11-28 12:51:03,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b8a099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:51:03, skipping insertion in model container [2018-11-28 12:51:03,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:02" (2/3) ... [2018-11-28 12:51:03,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b8a099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:51:03, skipping insertion in model container [2018-11-28 12:51:03,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:51:03" (3/3) ... [2018-11-28 12:51:03,071 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport_true-unreach-call.i [2018-11-28 12:51:03,093 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,093 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,093 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,093 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,094 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,094 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,094 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,095 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,095 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,095 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,095 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,095 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:51:03,104 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 12:51:03,104 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:51:03,109 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 12:51:03,117 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 12:51:03,131 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:51:03,132 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:51:03,132 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:51:03,132 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:51:03,132 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:51:03,132 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:51:03,132 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:51:03,133 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:51:03,133 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:51:03,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77places, 100 transitions [2018-11-28 12:51:03,198 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1816 states. [2018-11-28 12:51:03,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states. [2018-11-28 12:51:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:51:03,207 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:03,207 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:51:03,208 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:03,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:03,211 INFO L82 PathProgramCache]: Analyzing trace with hash -772610409, now seen corresponding path program 1 times [2018-11-28 12:51:03,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:03,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:03,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:51:03,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:03,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:03,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:51:03,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:51:03,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:51:03,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:51:03,312 INFO L87 Difference]: Start difference. First operand 1816 states. Second operand 2 states. [2018-11-28 12:51:03,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:03,346 INFO L93 Difference]: Finished difference Result 1816 states and 5404 transitions. [2018-11-28 12:51:03,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:51:03,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 12:51:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:03,368 INFO L225 Difference]: With dead ends: 1816 [2018-11-28 12:51:03,368 INFO L226 Difference]: Without dead ends: 1702 [2018-11-28 12:51:03,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:51:03,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2018-11-28 12:51:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2018-11-28 12:51:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2018-11-28 12:51:03,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 5134 transitions. [2018-11-28 12:51:03,464 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 5134 transitions. Word has length 18 [2018-11-28 12:51:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:03,465 INFO L480 AbstractCegarLoop]: Abstraction has 1702 states and 5134 transitions. [2018-11-28 12:51:03,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:51:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 5134 transitions. [2018-11-28 12:51:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:51:03,466 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:03,466 INFO L402 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] [2018-11-28 12:51:03,467 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:03,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:03,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1584356875, now seen corresponding path program 1 times [2018-11-28 12:51:03,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:03,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:03,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:51:03,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:03,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:03,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:03,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:03,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:03,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:03,520 INFO L87 Difference]: Start difference. First operand 1702 states and 5134 transitions. Second operand 3 states. [2018-11-28 12:51:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:03,589 INFO L93 Difference]: Finished difference Result 1687 states and 5003 transitions. [2018-11-28 12:51:03,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:03,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-11-28 12:51:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:03,596 INFO L225 Difference]: With dead ends: 1687 [2018-11-28 12:51:03,596 INFO L226 Difference]: Without dead ends: 1399 [2018-11-28 12:51:03,597 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2018-11-28 12:51:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1345. [2018-11-28 12:51:03,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2018-11-28 12:51:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 4069 transitions. [2018-11-28 12:51:03,632 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 4069 transitions. Word has length 24 [2018-11-28 12:51:03,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:03,632 INFO L480 AbstractCegarLoop]: Abstraction has 1345 states and 4069 transitions. [2018-11-28 12:51:03,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 4069 transitions. [2018-11-28 12:51:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:51:03,635 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:03,635 INFO L402 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] [2018-11-28 12:51:03,636 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:03,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash 443111029, now seen corresponding path program 1 times [2018-11-28 12:51:03,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:03,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:03,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:51:03,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:03,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:03,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:03,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:03,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:03,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:03,680 INFO L87 Difference]: Start difference. First operand 1345 states and 4069 transitions. Second operand 3 states. [2018-11-28 12:51:03,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:03,736 INFO L93 Difference]: Finished difference Result 1255 states and 3767 transitions. [2018-11-28 12:51:03,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:03,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-11-28 12:51:03,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:03,742 INFO L225 Difference]: With dead ends: 1255 [2018-11-28 12:51:03,742 INFO L226 Difference]: Without dead ends: 952 [2018-11-28 12:51:03,742 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2018-11-28 12:51:03,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2018-11-28 12:51:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2018-11-28 12:51:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 2914 transitions. [2018-11-28 12:51:03,771 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 2914 transitions. Word has length 27 [2018-11-28 12:51:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:03,772 INFO L480 AbstractCegarLoop]: Abstraction has 952 states and 2914 transitions. [2018-11-28 12:51:03,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 2914 transitions. [2018-11-28 12:51:03,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:51:03,775 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:03,775 INFO L402 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] [2018-11-28 12:51:03,775 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:03,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:03,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1505967266, now seen corresponding path program 1 times [2018-11-28 12:51:03,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:03,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:03,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:51:03,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:03,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:03,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:03,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:03,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:03,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:03,825 INFO L87 Difference]: Start difference. First operand 952 states and 2914 transitions. Second operand 3 states. [2018-11-28 12:51:03,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:03,901 INFO L93 Difference]: Finished difference Result 1228 states and 3688 transitions. [2018-11-28 12:51:03,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:03,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:51:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:03,906 INFO L225 Difference]: With dead ends: 1228 [2018-11-28 12:51:03,906 INFO L226 Difference]: Without dead ends: 994 [2018-11-28 12:51:03,906 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:03,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2018-11-28 12:51:03,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 943. [2018-11-28 12:51:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2018-11-28 12:51:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 2817 transitions. [2018-11-28 12:51:03,933 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 2817 transitions. Word has length 36 [2018-11-28 12:51:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:03,933 INFO L480 AbstractCegarLoop]: Abstraction has 943 states and 2817 transitions. [2018-11-28 12:51:03,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 2817 transitions. [2018-11-28 12:51:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:51:03,935 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:03,935 INFO L402 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] [2018-11-28 12:51:03,936 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:03,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:03,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1422434340, now seen corresponding path program 2 times [2018-11-28 12:51:03,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:03,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:03,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:51:03,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:03,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:03,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:03,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:51:03,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:51:03,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:51:03,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:51:03,977 INFO L87 Difference]: Start difference. First operand 943 states and 2817 transitions. Second operand 4 states. [2018-11-28 12:51:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:04,020 INFO L93 Difference]: Finished difference Result 1456 states and 4146 transitions. [2018-11-28 12:51:04,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:04,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-11-28 12:51:04,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:04,026 INFO L225 Difference]: With dead ends: 1456 [2018-11-28 12:51:04,027 INFO L226 Difference]: Without dead ends: 1456 [2018-11-28 12:51:04,027 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:51:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-11-28 12:51:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1051. [2018-11-28 12:51:04,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-11-28 12:51:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 3108 transitions. [2018-11-28 12:51:04,058 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 3108 transitions. Word has length 36 [2018-11-28 12:51:04,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:04,059 INFO L480 AbstractCegarLoop]: Abstraction has 1051 states and 3108 transitions. [2018-11-28 12:51:04,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:51:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 3108 transitions. [2018-11-28 12:51:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:51:04,061 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:04,062 INFO L402 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] [2018-11-28 12:51:04,062 INFO L423 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:04,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:04,062 INFO L82 PathProgramCache]: Analyzing trace with hash -163632108, now seen corresponding path program 3 times [2018-11-28 12:51:04,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:04,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:04,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,065 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:51:04,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:04,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:04,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:04,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:04,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:04,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,102 INFO L87 Difference]: Start difference. First operand 1051 states and 3108 transitions. Second operand 3 states. [2018-11-28 12:51:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:04,120 INFO L93 Difference]: Finished difference Result 1303 states and 3546 transitions. [2018-11-28 12:51:04,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:04,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:51:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:04,126 INFO L225 Difference]: With dead ends: 1303 [2018-11-28 12:51:04,126 INFO L226 Difference]: Without dead ends: 1294 [2018-11-28 12:51:04,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2018-11-28 12:51:04,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 973. [2018-11-28 12:51:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-11-28 12:51:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 2744 transitions. [2018-11-28 12:51:04,151 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 2744 transitions. Word has length 36 [2018-11-28 12:51:04,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:04,151 INFO L480 AbstractCegarLoop]: Abstraction has 973 states and 2744 transitions. [2018-11-28 12:51:04,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:04,152 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 2744 transitions. [2018-11-28 12:51:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:51:04,154 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:04,154 INFO L402 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] [2018-11-28 12:51:04,154 INFO L423 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:04,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:04,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1616007366, now seen corresponding path program 4 times [2018-11-28 12:51:04,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:04,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:04,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,157 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:51:04,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:04,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:04,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:04,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:04,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:04,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,184 INFO L87 Difference]: Start difference. First operand 973 states and 2744 transitions. Second operand 3 states. [2018-11-28 12:51:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:04,220 INFO L93 Difference]: Finished difference Result 880 states and 2301 transitions. [2018-11-28 12:51:04,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:04,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:51:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:04,222 INFO L225 Difference]: With dead ends: 880 [2018-11-28 12:51:04,222 INFO L226 Difference]: Without dead ends: 655 [2018-11-28 12:51:04,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2018-11-28 12:51:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 568. [2018-11-28 12:51:04,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2018-11-28 12:51:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 1424 transitions. [2018-11-28 12:51:04,231 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 1424 transitions. Word has length 36 [2018-11-28 12:51:04,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:04,231 INFO L480 AbstractCegarLoop]: Abstraction has 568 states and 1424 transitions. [2018-11-28 12:51:04,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 1424 transitions. [2018-11-28 12:51:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 12:51:04,232 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:04,233 INFO L402 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] [2018-11-28 12:51:04,233 INFO L423 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:04,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:04,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1142059985, now seen corresponding path program 1 times [2018-11-28 12:51:04,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:04,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:04,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,235 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:51:04,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:04,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:04,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:04,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:04,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:04,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,258 INFO L87 Difference]: Start difference. First operand 568 states and 1424 transitions. Second operand 3 states. [2018-11-28 12:51:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:04,268 INFO L93 Difference]: Finished difference Result 544 states and 1360 transitions. [2018-11-28 12:51:04,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:04,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-28 12:51:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:04,270 INFO L225 Difference]: With dead ends: 544 [2018-11-28 12:51:04,270 INFO L226 Difference]: Without dead ends: 469 [2018-11-28 12:51:04,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2018-11-28 12:51:04,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2018-11-28 12:51:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2018-11-28 12:51:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 1171 transitions. [2018-11-28 12:51:04,275 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 1171 transitions. Word has length 39 [2018-11-28 12:51:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:04,275 INFO L480 AbstractCegarLoop]: Abstraction has 469 states and 1171 transitions. [2018-11-28 12:51:04,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 1171 transitions. [2018-11-28 12:51:04,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 12:51:04,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:51:04,277 INFO L402 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] [2018-11-28 12:51:04,277 INFO L423 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:51:04,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:51:04,277 INFO L82 PathProgramCache]: Analyzing trace with hash -547744875, now seen corresponding path program 1 times [2018-11-28 12:51:04,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:51:04,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:51:04,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:51:04,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:51:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:51:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:51:04,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:51:04,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:51:04,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:51:04,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:51:04,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,303 INFO L87 Difference]: Start difference. First operand 469 states and 1171 transitions. Second operand 3 states. [2018-11-28 12:51:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:51:04,309 INFO L93 Difference]: Finished difference Result 310 states and 825 transitions. [2018-11-28 12:51:04,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:51:04,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-28 12:51:04,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:51:04,309 INFO L225 Difference]: With dead ends: 310 [2018-11-28 12:51:04,309 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:51:04,310 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:51:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:51:04,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:51:04,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:51:04,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:51:04,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-11-28 12:51:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:51:04,310 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:51:04,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:51:04,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:51:04,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:51:04,313 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 12:51:04,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:51:04 BasicIcfg [2018-11-28 12:51:04,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:51:04,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:51:04,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:51:04,315 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:51:04,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:51:03" (3/4) ... [2018-11-28 12:51:04,317 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:51:04,322 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2018-11-28 12:51:04,322 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-28 12:51:04,325 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 12:51:04,325 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:51:04,350 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c918c61c-397b-419e-ba0c-56e3553a232e/bin-2019/uautomizer/witness.graphml [2018-11-28 12:51:04,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:51:04,350 INFO L168 Benchmark]: Toolchain (without parser) took 1961.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.7 MB in the beginning and 868.2 MB in the end (delta: 88.5 MB). Peak memory consumption was 240.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:51:04,351 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 984.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:51:04,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:51:04,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.02 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:51:04,352 INFO L168 Benchmark]: Boogie Preprocessor took 16.93 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. [2018-11-28 12:51:04,352 INFO L168 Benchmark]: RCFGBuilder took 263.63 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:51:04,353 INFO L168 Benchmark]: TraceAbstraction took 1247.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.5 MB in the end (delta: 229.4 MB). Peak memory consumption was 229.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:51:04,353 INFO L168 Benchmark]: Witness Printer took 35.36 ms. Allocated memory is still 1.2 GB. Free memory was 871.5 MB in the beginning and 868.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:51:04,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 984.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.02 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.93 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. * RCFGBuilder took 263.63 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: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1247.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.5 MB in the end (delta: 229.4 MB). Peak memory consumption was 229.4 MB. Max. memory is 11.5 GB. * Witness Printer took 35.36 ms. Allocated memory is still 1.2 GB. Free memory was 871.5 MB in the beginning and 868.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 685]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 123 locations, 4 error locations. SAFE Result, 1.1s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 795 SDtfs, 283 SDslu, 511 SDs, 0 SdLazy, 91 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1816occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 918 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 12878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...