./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_tso.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_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/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 52fb212ec99341e6f9f48006fcd8fa26d0c18e53 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:56:07,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:07,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:07,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:07,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:07,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:07,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:07,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:07,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:07,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:07,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:07,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:07,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:07,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:07,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:07,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:07,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:07,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:07,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:07,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:07,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:07,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:07,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:07,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:07,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:07,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:07,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:07,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:07,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:07,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:07,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:07,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:07,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:07,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:07,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:07,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:07,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:07,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:07,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:07,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:07,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:07,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:56:08,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:08,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:08,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:08,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:08,027 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:08,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:08,027 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:08,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:08,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:08,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:08,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:08,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:08,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:08,029 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:08,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:08,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:08,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:08,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:08,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:08,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:08,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:08,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:08,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:08,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:08,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:08,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:08,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:08,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:08,032 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_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/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 -> 52fb212ec99341e6f9f48006fcd8fa26d0c18e53 [2019-11-25 08:56:08,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:08,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:08,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:08,184 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:08,184 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:08,185 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe037_tso.opt.i [2019-11-25 08:56:08,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/data/559198035/14faa9b8d52a427b9393ff1aa97ff1c9/FLAG00aaa15cc [2019-11-25 08:56:08,712 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:08,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/sv-benchmarks/c/pthread-wmm/safe037_tso.opt.i [2019-11-25 08:56:08,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/data/559198035/14faa9b8d52a427b9393ff1aa97ff1c9/FLAG00aaa15cc [2019-11-25 08:56:09,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/data/559198035/14faa9b8d52a427b9393ff1aa97ff1c9 [2019-11-25 08:56:09,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:09,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:09,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:09,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:09,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:09,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec5dd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09, skipping insertion in model container [2019-11-25 08:56:09,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:09,106 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:09,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:09,549 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:09,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:09,672 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:09,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09 WrapperNode [2019-11-25 08:56:09,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:09,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:09,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:09,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:09,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:09,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:09,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:09,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:09,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... [2019-11-25 08:56:09,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:09,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:09,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:09,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:09,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/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 08:56:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:56:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:56:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:56:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:56:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:56:09,855 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:56:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:56:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:56:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:09,862 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 08:56:10,262 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:10,262 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:56:10,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:10 BoogieIcfgContainer [2019-11-25 08:56:10,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:10,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:10,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:10,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:10,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:09" (1/3) ... [2019-11-25 08:56:10,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913a4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:10, skipping insertion in model container [2019-11-25 08:56:10,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:09" (2/3) ... [2019-11-25 08:56:10,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913a4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:10, skipping insertion in model container [2019-11-25 08:56:10,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:10" (3/3) ... [2019-11-25 08:56:10,269 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2019-11-25 08:56:10,322 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,322 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,322 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,323 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,324 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,324 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,324 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,324 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,324 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,325 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,325 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,325 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,325 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,325 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,325 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,326 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,326 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,326 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,326 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,327 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,327 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,327 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,327 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,327 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,328 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,328 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,328 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,328 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,329 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,329 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,329 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,329 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,329 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,330 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,330 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,330 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,330 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,331 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,331 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,331 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,331 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,331 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,332 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,332 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,332 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,332 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,333 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,333 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,333 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,333 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,333 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:10,370 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:56:10,370 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:10,377 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:10,387 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:10,406 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:10,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:10,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:10,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:10,406 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:10,406 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:10,406 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:10,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:10,416 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-25 08:56:10,557 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-11-25 08:56:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-11-25 08:56:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:56:10,585 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:10,586 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:10,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:10,592 INFO L82 PathProgramCache]: Analyzing trace with hash 559393765, now seen corresponding path program 1 times [2019-11-25 08:56:10,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:10,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624088300] [2019-11-25 08:56:10,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:10,960 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 08:56:10,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624088300] [2019-11-25 08:56:10,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:10,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:56:10,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353246878] [2019-11-25 08:56:10,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:56:10,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:10,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:10,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:10,980 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-11-25 08:56:11,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:11,186 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-11-25 08:56:11,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:56:11,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-25 08:56:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:11,247 INFO L225 Difference]: With dead ends: 1296 [2019-11-25 08:56:11,247 INFO L226 Difference]: Without dead ends: 602 [2019-11-25 08:56:11,249 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 08:56:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-25 08:56:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-11-25 08:56:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-11-25 08:56:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-11-25 08:56:11,391 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-11-25 08:56:11,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:11,391 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-11-25 08:56:11,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:56:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-11-25 08:56:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:56:11,395 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:11,395 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:11,396 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:11,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1314704853, now seen corresponding path program 1 times [2019-11-25 08:56:11,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:11,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816403442] [2019-11-25 08:56:11,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:11,574 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 08:56:11,575 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816403442] [2019-11-25 08:56:11,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:11,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:56:11,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580811664] [2019-11-25 08:56:11,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:56:11,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:11,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:56:11,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:56:11,578 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-11-25 08:56:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:11,658 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-11-25 08:56:11,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:56:11,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-25 08:56:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:11,667 INFO L225 Difference]: With dead ends: 602 [2019-11-25 08:56:11,667 INFO L226 Difference]: Without dead ends: 539 [2019-11-25 08:56:11,668 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-11-25 08:56:11,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-11-25 08:56:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-11-25 08:56:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-11-25 08:56:11,708 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-11-25 08:56:11,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:11,708 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-11-25 08:56:11,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:56:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-11-25 08:56:11,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:56:11,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:11,711 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:11,711 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:11,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:11,712 INFO L82 PathProgramCache]: Analyzing trace with hash 25826823, now seen corresponding path program 1 times [2019-11-25 08:56:11,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:11,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354935956] [2019-11-25 08:56:11,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:11,839 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 08:56:11,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354935956] [2019-11-25 08:56:11,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:11,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:56:11,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118102258] [2019-11-25 08:56:11,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:56:11,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:11,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:56:11,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:56:11,842 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-11-25 08:56:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:11,938 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-11-25 08:56:11,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:11,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-25 08:56:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:11,942 INFO L225 Difference]: With dead ends: 404 [2019-11-25 08:56:11,942 INFO L226 Difference]: Without dead ends: 350 [2019-11-25 08:56:11,943 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 08:56:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-25 08:56:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-11-25 08:56:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-11-25 08:56:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-11-25 08:56:11,961 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-11-25 08:56:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:11,961 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-11-25 08:56:11,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:56:11,962 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-11-25 08:56:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:56:11,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:11,964 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] [2019-11-25 08:56:11,964 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1153353435, now seen corresponding path program 1 times [2019-11-25 08:56:11,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:11,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019098400] [2019-11-25 08:56:11,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:12,182 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 08:56:12,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019098400] [2019-11-25 08:56:12,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:12,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:12,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914840690] [2019-11-25 08:56:12,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:12,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:12,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:12,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:12,185 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-11-25 08:56:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:12,379 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-11-25 08:56:12,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:12,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-25 08:56:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:12,383 INFO L225 Difference]: With dead ends: 521 [2019-11-25 08:56:12,383 INFO L226 Difference]: Without dead ends: 350 [2019-11-25 08:56:12,384 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-25 08:56:12,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 341. [2019-11-25 08:56:12,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-11-25 08:56:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 889 transitions. [2019-11-25 08:56:12,398 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 889 transitions. Word has length 35 [2019-11-25 08:56:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:12,399 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 889 transitions. [2019-11-25 08:56:12,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 889 transitions. [2019-11-25 08:56:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:56:12,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:12,401 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] [2019-11-25 08:56:12,401 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:12,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:12,401 INFO L82 PathProgramCache]: Analyzing trace with hash 980105743, now seen corresponding path program 2 times [2019-11-25 08:56:12,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:12,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836058295] [2019-11-25 08:56:12,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:12,592 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 08:56:12,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836058295] [2019-11-25 08:56:12,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:12,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:12,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815332930] [2019-11-25 08:56:12,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:12,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:12,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:12,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:12,595 INFO L87 Difference]: Start difference. First operand 341 states and 889 transitions. Second operand 7 states. [2019-11-25 08:56:12,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:12,783 INFO L93 Difference]: Finished difference Result 503 states and 1348 transitions. [2019-11-25 08:56:12,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:12,787 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-25 08:56:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:12,789 INFO L225 Difference]: With dead ends: 503 [2019-11-25 08:56:12,789 INFO L226 Difference]: Without dead ends: 269 [2019-11-25 08:56:12,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-11-25 08:56:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-11-25 08:56:12,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-11-25 08:56:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 703 transitions. [2019-11-25 08:56:12,802 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 703 transitions. Word has length 35 [2019-11-25 08:56:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:12,803 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 703 transitions. [2019-11-25 08:56:12,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 703 transitions. [2019-11-25 08:56:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:56:12,804 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:12,804 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] [2019-11-25 08:56:12,804 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:12,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2125873661, now seen corresponding path program 3 times [2019-11-25 08:56:12,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:12,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452902178] [2019-11-25 08:56:12,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:12,953 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 08:56:12,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452902178] [2019-11-25 08:56:12,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:12,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:56:12,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030255938] [2019-11-25 08:56:12,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:56:12,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:12,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:56:12,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:56:12,955 INFO L87 Difference]: Start difference. First operand 269 states and 703 transitions. Second operand 8 states. [2019-11-25 08:56:13,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:13,078 INFO L93 Difference]: Finished difference Result 440 states and 1183 transitions. [2019-11-25 08:56:13,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:13,079 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-25 08:56:13,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:13,081 INFO L225 Difference]: With dead ends: 440 [2019-11-25 08:56:13,081 INFO L226 Difference]: Without dead ends: 266 [2019-11-25 08:56:13,082 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:56:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-25 08:56:13,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-25 08:56:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-25 08:56:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 697 transitions. [2019-11-25 08:56:13,091 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 697 transitions. Word has length 35 [2019-11-25 08:56:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:13,091 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 697 transitions. [2019-11-25 08:56:13,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:56:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 697 transitions. [2019-11-25 08:56:13,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:56:13,092 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:13,092 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] [2019-11-25 08:56:13,092 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:13,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:13,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1093382479, now seen corresponding path program 4 times [2019-11-25 08:56:13,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:13,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118027157] [2019-11-25 08:56:13,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:13,222 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 08:56:13,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118027157] [2019-11-25 08:56:13,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:13,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:13,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989473136] [2019-11-25 08:56:13,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:13,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:13,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:13,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:13,224 INFO L87 Difference]: Start difference. First operand 266 states and 697 transitions. Second operand 7 states. [2019-11-25 08:56:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:13,379 INFO L93 Difference]: Finished difference Result 212 states and 535 transitions. [2019-11-25 08:56:13,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:13,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-11-25 08:56:13,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:13,380 INFO L225 Difference]: With dead ends: 212 [2019-11-25 08:56:13,380 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:56:13,381 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:13,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:56:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:56:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:56:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:56:13,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-25 08:56:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:13,382 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:13,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:13,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:56:13,389 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:56:13,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:13 BasicIcfg [2019-11-25 08:56:13,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:13,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:13,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:13,393 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:13,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:10" (3/4) ... [2019-11-25 08:56:13,398 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:56:13,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:56:13,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:56:13,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:56:13,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:56:13,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:56:13,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:56:13,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8f6dd45c-2cb7-498b-a183-32e2c51a5c27/bin/uautomizer/witness.graphml [2019-11-25 08:56:13,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:13,519 INFO L168 Benchmark]: Toolchain (without parser) took 4488.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -99.2 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:13,519 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:13,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:13,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.71 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 08:56:13,521 INFO L168 Benchmark]: Boogie Preprocessor took 55.27 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:13,521 INFO L168 Benchmark]: RCFGBuilder took 480.77 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 08:56:13,522 INFO L168 Benchmark]: TraceAbstraction took 3128.46 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:13,523 INFO L168 Benchmark]: Witness Printer took 122.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:13,525 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 643.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.71 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 55.27 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 480.77 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 3128.46 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Witness Printer took 122.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 91 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 381 SDtfs, 411 SDslu, 1126 SDs, 0 SdLazy, 147 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 21714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...