./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/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 0a11fa958d4124f3116e26376dc48ac068d06e85 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:51:56,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:51:56,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:51:56,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:51:56,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:51:56,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:51:56,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:51:56,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:51:56,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:51:56,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:51:56,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:51:56,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:51:56,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:51:56,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:51:56,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:51:56,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:51:56,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:51:56,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:51:56,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:51:56,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:51:56,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:51:56,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:51:56,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:51:56,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:51:57,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:51:57,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:51:57,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:51:57,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:51:57,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:51:57,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:51:57,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:51:57,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:51:57,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:51:57,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:51:57,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:51:57,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:51:57,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:51:57,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:51:57,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:51:57,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:51:57,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:51:57,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:51:57,032 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:51:57,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:51:57,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:51:57,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:51:57,044 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:51:57,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:51:57,044 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:51:57,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:51:57,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:51:57,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:51:57,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:51:57,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:51:57,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:51:57,046 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:51:57,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:51:57,047 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:51:57,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:51:57,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:51:57,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:51:57,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:51:57,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:51:57,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:51:57,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:51:57,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:51:57,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:51:57,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:51:57,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:51:57,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:51:57,050 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_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/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 -> 0a11fa958d4124f3116e26376dc48ac068d06e85 [2019-11-20 01:51:57,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:51:57,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:51:57,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:51:57,230 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:51:57,230 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:51:57,231 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2019-11-20 01:51:57,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/data/d9177f492/c63972588eef42dc84188f1cecc179ae/FLAG3699ff864 [2019-11-20 01:51:57,709 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:51:57,710 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2019-11-20 01:51:57,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/data/d9177f492/c63972588eef42dc84188f1cecc179ae/FLAG3699ff864 [2019-11-20 01:51:58,043 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/data/d9177f492/c63972588eef42dc84188f1cecc179ae [2019-11-20 01:51:58,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:51:58,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:51:58,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:51:58,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:51:58,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:51:58,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@261d23b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58, skipping insertion in model container [2019-11-20 01:51:58,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,062 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:51:58,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:51:58,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:51:58,574 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:51:58,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:51:58,724 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:51:58,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58 WrapperNode [2019-11-20 01:51:58,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:51:58,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:51:58,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:51:58,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:51:58,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:51:58,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:51:58,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:51:58,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:51:58,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... [2019-11-20 01:51:58,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:51:58,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:51:58,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:51:58,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:51:58,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:51:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:51:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 01:51:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:51:58,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:51:58,861 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 01:51:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 01:51:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 01:51:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 01:51:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 01:51:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 01:51:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 01:51:58,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:51:58,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:51:58,867 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 01:51:59,177 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:51:59,177 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 01:51:59,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:51:59 BoogieIcfgContainer [2019-11-20 01:51:59,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:51:59,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:51:59,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:51:59,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:51:59,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:51:58" (1/3) ... [2019-11-20 01:51:59,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c77f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:51:59, skipping insertion in model container [2019-11-20 01:51:59,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:58" (2/3) ... [2019-11-20 01:51:59,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c77f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:51:59, skipping insertion in model container [2019-11-20 01:51:59,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:51:59" (3/3) ... [2019-11-20 01:51:59,184 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2019-11-20 01:51:59,225 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,225 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,225 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,225 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,226 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,226 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,226 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,226 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,227 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,227 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,227 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,227 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,228 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,228 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,228 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,228 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,228 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,229 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,229 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,229 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,229 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,230 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,230 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,230 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,230 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,231 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,231 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,231 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,231 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,231 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,232 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,232 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,232 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,232 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,233 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,233 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,233 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,233 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,234 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,234 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,234 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,234 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,235 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,235 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,235 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,235 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,235 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,236 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,236 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,236 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,236 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,237 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,237 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,237 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:51:59,264 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 01:51:59,264 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:51:59,271 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:51:59,281 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:51:59,300 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:51:59,300 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:51:59,300 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:51:59,301 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:51:59,301 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:51:59,301 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:51:59,301 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:51:59,301 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:51:59,318 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-20 01:52:02,785 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-20 01:52:02,787 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-20 01:52:02,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 01:52:02,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:02,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:02,851 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:02,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1190265277, now seen corresponding path program 1 times [2019-11-20 01:52:02,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:02,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289468095] [2019-11-20 01:52:02,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:52:03,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289468095] [2019-11-20 01:52:03,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:03,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 01:52:03,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550493354] [2019-11-20 01:52:03,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 01:52:03,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:52:03,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 01:52:03,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 01:52:03,227 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-20 01:52:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:03,698 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-20 01:52:03,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:52:03,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-20 01:52:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:04,075 INFO L225 Difference]: With dead ends: 33013 [2019-11-20 01:52:04,076 INFO L226 Difference]: Without dead ends: 14275 [2019-11-20 01:52:04,077 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:52:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-20 01:52:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-20 01:52:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-20 01:52:04,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-20 01:52:04,789 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-20 01:52:04,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:04,791 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-20 01:52:04,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 01:52:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-20 01:52:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 01:52:04,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:04,819 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:04,820 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:04,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:04,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1544638877, now seen corresponding path program 1 times [2019-11-20 01:52:04,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:04,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887850359] [2019-11-20 01:52:04,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:52:04,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887850359] [2019-11-20 01:52:04,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:04,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:52:04,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15100393] [2019-11-20 01:52:04,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:52:04,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:52:04,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:52:04,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:52:04,950 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-20 01:52:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:05,273 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-20 01:52:05,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:52:05,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 01:52:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:05,327 INFO L225 Difference]: With dead ends: 14275 [2019-11-20 01:52:05,328 INFO L226 Difference]: Without dead ends: 12574 [2019-11-20 01:52:05,328 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 01:52:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-20 01:52:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-20 01:52:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-20 01:52:05,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-20 01:52:05,810 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-20 01:52:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:05,811 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-20 01:52:05,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:52:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-20 01:52:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 01:52:05,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:05,838 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:05,838 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 443261239, now seen corresponding path program 1 times [2019-11-20 01:52:05,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:05,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752076434] [2019-11-20 01:52:05,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:52:05,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752076434] [2019-11-20 01:52:05,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:05,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 01:52:05,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440778508] [2019-11-20 01:52:05,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:52:05,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:52:05,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:52:05,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:52:05,965 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-20 01:52:06,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:06,255 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-20 01:52:06,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:52:06,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 01:52:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:06,280 INFO L225 Difference]: With dead ends: 8929 [2019-11-20 01:52:06,280 INFO L226 Difference]: Without dead ends: 7471 [2019-11-20 01:52:06,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:52:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-20 01:52:06,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-20 01:52:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-20 01:52:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-20 01:52:06,795 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-20 01:52:06,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:06,796 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-20 01:52:06,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:52:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-20 01:52:06,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 01:52:06,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:06,812 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:06,812 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:06,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:06,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1400847616, now seen corresponding path program 1 times [2019-11-20 01:52:06,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:06,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762452758] [2019-11-20 01:52:06,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:52:06,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762452758] [2019-11-20 01:52:06,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:06,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 01:52:06,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296058934] [2019-11-20 01:52:06,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 01:52:06,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:52:06,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 01:52:06,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:52:06,978 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 8 states. [2019-11-20 01:52:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:07,283 INFO L93 Difference]: Finished difference Result 12412 states and 34929 transitions. [2019-11-20 01:52:07,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 01:52:07,283 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 01:52:07,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:07,306 INFO L225 Difference]: With dead ends: 12412 [2019-11-20 01:52:07,306 INFO L226 Difference]: Without dead ends: 7039 [2019-11-20 01:52:07,307 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-20 01:52:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7039 states. [2019-11-20 01:52:07,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7039 to 7039. [2019-11-20 01:52:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7039 states. [2019-11-20 01:52:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 19782 transitions. [2019-11-20 01:52:07,499 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 19782 transitions. Word has length 34 [2019-11-20 01:52:07,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:07,499 INFO L462 AbstractCegarLoop]: Abstraction has 7039 states and 19782 transitions. [2019-11-20 01:52:07,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 01:52:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 19782 transitions. [2019-11-20 01:52:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 01:52:07,515 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:07,515 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:07,515 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:07,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:07,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2119258264, now seen corresponding path program 2 times [2019-11-20 01:52:07,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:07,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627314879] [2019-11-20 01:52:07,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:52:07,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627314879] [2019-11-20 01:52:07,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:07,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 01:52:07,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513449759] [2019-11-20 01:52:07,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 01:52:07,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:52:07,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 01:52:07,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:52:07,711 INFO L87 Difference]: Start difference. First operand 7039 states and 19782 transitions. Second operand 8 states. [2019-11-20 01:52:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:07,873 INFO L93 Difference]: Finished difference Result 11656 states and 32742 transitions. [2019-11-20 01:52:07,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:52:07,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 01:52:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:07,894 INFO L225 Difference]: With dead ends: 11656 [2019-11-20 01:52:07,894 INFO L226 Difference]: Without dead ends: 6247 [2019-11-20 01:52:07,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 01:52:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2019-11-20 01:52:08,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6247. [2019-11-20 01:52:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6247 states. [2019-11-20 01:52:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6247 states to 6247 states and 17586 transitions. [2019-11-20 01:52:08,057 INFO L78 Accepts]: Start accepts. Automaton has 6247 states and 17586 transitions. Word has length 34 [2019-11-20 01:52:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:08,058 INFO L462 AbstractCegarLoop]: Abstraction has 6247 states and 17586 transitions. [2019-11-20 01:52:08,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 01:52:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6247 states and 17586 transitions. [2019-11-20 01:52:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 01:52:08,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:08,068 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:52:08,069 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:08,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:08,069 INFO L82 PathProgramCache]: Analyzing trace with hash 526200936, now seen corresponding path program 3 times [2019-11-20 01:52:08,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:08,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471428896] [2019-11-20 01:52:08,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:52:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:52:08,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471428896] [2019-11-20 01:52:08,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:52:08,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 01:52:08,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250250669] [2019-11-20 01:52:08,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 01:52:08,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:52:08,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 01:52:08,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:52:08,235 INFO L87 Difference]: Start difference. First operand 6247 states and 17586 transitions. Second operand 8 states. [2019-11-20 01:52:08,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:52:08,369 INFO L93 Difference]: Finished difference Result 4789 states and 13212 transitions. [2019-11-20 01:52:08,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 01:52:08,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 01:52:08,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:52:08,370 INFO L225 Difference]: With dead ends: 4789 [2019-11-20 01:52:08,370 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 01:52:08,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 01:52:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 01:52:08,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 01:52:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 01:52:08,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 01:52:08,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-20 01:52:08,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:52:08,372 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:52:08,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 01:52:08,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:52:08,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:52:08,376 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 01:52:08,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:52:08 BasicIcfg [2019-11-20 01:52:08,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:52:08,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:52:08,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:52:08,379 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:52:08,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:51:59" (3/4) ... [2019-11-20 01:52:08,384 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:52:08,396 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 01:52:08,396 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 01:52:08,396 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 01:52:08,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 01:52:08,411 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 01:52:08,411 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 01:52:08,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b21ce6c2-43af-4430-a5ec-3d2cb44ceafd/bin/uautomizer/witness.graphml [2019-11-20 01:52:08,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:52:08,468 INFO L168 Benchmark]: Toolchain (without parser) took 10420.68 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 493.9 MB). Free memory was 944.7 MB in the beginning and 979.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 458.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:08,469 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-20 01:52:08,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.03 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: -165.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:08,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:52:08,472 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:52:08,477 INFO L168 Benchmark]: RCFGBuilder took 386.35 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:08,478 INFO L168 Benchmark]: TraceAbstraction took 9198.90 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 349.7 MB). Free memory was 1.1 GB in the beginning and 983.5 MB in the end (delta: 99.3 MB). Peak memory consumption was 449.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:08,478 INFO L168 Benchmark]: Witness Printer took 87.61 ms. Allocated memory is still 1.5 GB. Free memory was 983.5 MB in the beginning and 979.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:08,480 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 677.03 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: -165.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.05 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 26.47 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 386.35 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9198.90 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 349.7 MB). Free memory was 1.1 GB in the beginning and 983.5 MB in the end (delta: 99.3 MB). Peak memory consumption was 449.0 MB. Max. memory is 11.5 GB. * Witness Printer took 87.61 ms. Allocated memory is still 1.5 GB. Free memory was 983.5 MB in the beginning and 979.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 9.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 546 SDtfs, 1022 SDslu, 1488 SDs, 0 SdLazy, 250 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31744occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 19560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...