./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.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_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/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 ad3529de58203335eda652d65dd37fa3fd47fcea ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:19:42,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:19:42,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:19:42,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:19:42,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:19:42,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:19:42,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:19:42,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:19:42,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:19:42,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:19:42,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:19:42,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:19:42,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:19:42,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:19:42,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:19:42,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:19:42,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:19:42,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:19:42,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:19:42,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:19:42,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:19:42,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:19:42,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:19:42,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:19:42,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:19:42,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:19:42,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:19:42,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:19:42,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:19:42,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:19:42,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:19:42,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:19:42,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:19:42,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:19:42,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:19:42,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:19:42,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:19:42,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:19:42,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:19:42,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:19:42,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:19:42,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:19:42,989 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:19:42,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:19:42,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:19:42,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:19:42,991 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:19:42,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:19:42,991 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:19:42,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:19:42,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:19:42,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:19:42,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:19:42,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:19:42,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:19:42,993 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:19:42,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:19:42,993 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:19:42,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:19:42,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:19:42,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:19:42,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:19:42,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:19:42,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:19:42,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:19:42,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:19:42,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:19:42,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:19:42,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:19:42,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:19:42,996 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_5db62fca-f445-4de0-9c07-020e6b869fab/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 -> ad3529de58203335eda652d65dd37fa3fd47fcea [2019-11-20 04:19:43,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:19:43,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:19:43,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:19:43,141 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:19:43,142 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:19:43,142 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2019-11-20 04:19:43,199 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/data/5b7fb0997/258ac083753e4aea804f42e6847f5852/FLAG028f9735a [2019-11-20 04:19:43,671 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:19:43,672 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2019-11-20 04:19:43,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/data/5b7fb0997/258ac083753e4aea804f42e6847f5852/FLAG028f9735a [2019-11-20 04:19:44,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/data/5b7fb0997/258ac083753e4aea804f42e6847f5852 [2019-11-20 04:19:44,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:19:44,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:19:44,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:19:44,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:19:44,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:19:44,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a28bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44, skipping insertion in model container [2019-11-20 04:19:44,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,033 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:19:44,082 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:19:44,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:19:44,522 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:19:44,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:19:44,651 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:19:44,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44 WrapperNode [2019-11-20 04:19:44,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:19:44,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:19:44,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:19:44,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:19:44,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:19:44,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:19:44,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:19:44,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:19:44,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... [2019-11-20 04:19:44,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:19:44,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:19:44,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:19:44,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:19:44,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/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 04:19:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:19:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 04:19:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:19:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:19:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 04:19:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 04:19:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 04:19:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 04:19:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 04:19:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 04:19:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 04:19:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:19:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:19:44,801 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 04:19:45,193 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:19:45,193 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 04:19:45,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:19:45 BoogieIcfgContainer [2019-11-20 04:19:45,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:19:45,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:19:45,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:19:45,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:19:45,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:19:44" (1/3) ... [2019-11-20 04:19:45,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450e684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:19:45, skipping insertion in model container [2019-11-20 04:19:45,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:19:44" (2/3) ... [2019-11-20 04:19:45,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450e684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:19:45, skipping insertion in model container [2019-11-20 04:19:45,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:19:45" (3/3) ... [2019-11-20 04:19:45,201 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2019-11-20 04:19:45,243 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,243 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,243 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,244 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,244 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,244 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,244 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,245 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,245 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,246 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,246 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,247 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,247 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,248 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,248 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,248 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,248 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,249 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,249 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,250 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,251 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,251 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,252 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,252 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,253 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,253 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:19:45,277 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 04:19:45,277 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:19:45,284 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:19:45,294 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:19:45,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:19:45,312 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:19:45,312 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:19:45,312 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:19:45,313 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:19:45,313 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:19:45,313 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:19:45,313 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:19:45,329 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-20 04:19:48,673 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31745 states. [2019-11-20 04:19:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand 31745 states. [2019-11-20 04:19:48,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 04:19:48,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:19:48,738 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 04:19:48,739 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:19:48,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:19:48,744 INFO L82 PathProgramCache]: Analyzing trace with hash 495697940, now seen corresponding path program 1 times [2019-11-20 04:19:48,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:19:48,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321726110] [2019-11-20 04:19:48,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:19:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:19:49,094 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 04:19:49,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321726110] [2019-11-20 04:19:49,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:19:49,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:19:49,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407674280] [2019-11-20 04:19:49,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:19:49,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:19:49,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:19:49,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:19:49,116 INFO L87 Difference]: Start difference. First operand 31745 states. Second operand 4 states. [2019-11-20 04:19:49,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:19:49,528 INFO L93 Difference]: Finished difference Result 33014 states and 103294 transitions. [2019-11-20 04:19:49,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:19:49,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-20 04:19:49,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:19:49,688 INFO L225 Difference]: With dead ends: 33014 [2019-11-20 04:19:49,688 INFO L226 Difference]: Without dead ends: 14276 [2019-11-20 04:19:49,690 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 04:19:49,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14276 states. [2019-11-20 04:19:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14276 to 14276. [2019-11-20 04:19:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14276 states. [2019-11-20 04:19:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14276 states to 14276 states and 44299 transitions. [2019-11-20 04:19:50,562 INFO L78 Accepts]: Start accepts. Automaton has 14276 states and 44299 transitions. Word has length 32 [2019-11-20 04:19:50,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:19:50,565 INFO L462 AbstractCegarLoop]: Abstraction has 14276 states and 44299 transitions. [2019-11-20 04:19:50,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:19:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 14276 states and 44299 transitions. [2019-11-20 04:19:50,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 04:19:50,595 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:19:50,595 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 04:19:50,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:19:50,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:19:50,603 INFO L82 PathProgramCache]: Analyzing trace with hash -222936086, now seen corresponding path program 1 times [2019-11-20 04:19:50,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:19:50,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793498650] [2019-11-20 04:19:50,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:19:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:19:50,754 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 04:19:50,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793498650] [2019-11-20 04:19:50,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:19:50,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 04:19:50,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9028247] [2019-11-20 04:19:50,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:19:50,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:19:50,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:19:50,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:19:50,757 INFO L87 Difference]: Start difference. First operand 14276 states and 44299 transitions. Second operand 5 states. [2019-11-20 04:19:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:19:51,027 INFO L93 Difference]: Finished difference Result 14276 states and 42112 transitions. [2019-11-20 04:19:51,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:19:51,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-20 04:19:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:19:51,081 INFO L225 Difference]: With dead ends: 14276 [2019-11-20 04:19:51,082 INFO L226 Difference]: Without dead ends: 12575 [2019-11-20 04:19:51,082 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 04:19:51,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12575 states. [2019-11-20 04:19:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12575 to 12575. [2019-11-20 04:19:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12575 states. [2019-11-20 04:19:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12575 states to 12575 states and 38062 transitions. [2019-11-20 04:19:51,457 INFO L78 Accepts]: Start accepts. Automaton has 12575 states and 38062 transitions. Word has length 33 [2019-11-20 04:19:51,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:19:51,458 INFO L462 AbstractCegarLoop]: Abstraction has 12575 states and 38062 transitions. [2019-11-20 04:19:51,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:19:51,458 INFO L276 IsEmpty]: Start isEmpty. Operand 12575 states and 38062 transitions. [2019-11-20 04:19:51,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 04:19:51,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:19:51,484 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 04:19:51,484 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:19:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:19:51,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1266228725, now seen corresponding path program 1 times [2019-11-20 04:19:51,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:19:51,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759099537] [2019-11-20 04:19:51,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:19:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:19:51,595 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 04:19:51,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759099537] [2019-11-20 04:19:51,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:19:51,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 04:19:51,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840220873] [2019-11-20 04:19:51,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:19:51,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:19:51,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:19:51,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:19:51,597 INFO L87 Difference]: Start difference. First operand 12575 states and 38062 transitions. Second operand 6 states. [2019-11-20 04:19:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:19:51,785 INFO L93 Difference]: Finished difference Result 8930 states and 24940 transitions. [2019-11-20 04:19:51,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:19:51,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-20 04:19:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:19:51,806 INFO L225 Difference]: With dead ends: 8930 [2019-11-20 04:19:51,807 INFO L226 Difference]: Without dead ends: 7472 [2019-11-20 04:19:51,807 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 04:19:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2019-11-20 04:19:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7472. [2019-11-20 04:19:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-11-20 04:19:52,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 21052 transitions. [2019-11-20 04:19:52,008 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 21052 transitions. Word has length 34 [2019-11-20 04:19:52,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:19:52,008 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 21052 transitions. [2019-11-20 04:19:52,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:19:52,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 21052 transitions. [2019-11-20 04:19:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 04:19:52,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:19:52,023 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] [2019-11-20 04:19:52,023 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:19:52,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:19:52,023 INFO L82 PathProgramCache]: Analyzing trace with hash 441205206, now seen corresponding path program 1 times [2019-11-20 04:19:52,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:19:52,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935232326] [2019-11-20 04:19:52,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:19:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:19:52,406 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2019-11-20 04:19:52,477 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 04:19:52,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935232326] [2019-11-20 04:19:52,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:19:52,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 04:19:52,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966350511] [2019-11-20 04:19:52,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:19:52,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:19:52,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:19:52,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:19:52,478 INFO L87 Difference]: Start difference. First operand 7472 states and 21052 transitions. Second operand 8 states. [2019-11-20 04:19:52,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:19:52,672 INFO L93 Difference]: Finished difference Result 12089 states and 34012 transitions. [2019-11-20 04:19:52,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:19:52,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 04:19:52,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:19:52,690 INFO L225 Difference]: With dead ends: 12089 [2019-11-20 04:19:52,690 INFO L226 Difference]: Without dead ends: 6680 [2019-11-20 04:19:52,691 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:19:52,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2019-11-20 04:19:52,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6680. [2019-11-20 04:19:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6680 states. [2019-11-20 04:19:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 18667 transitions. [2019-11-20 04:19:52,836 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 18667 transitions. Word has length 35 [2019-11-20 04:19:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:19:52,836 INFO L462 AbstractCegarLoop]: Abstraction has 6680 states and 18667 transitions. [2019-11-20 04:19:52,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:19:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 18667 transitions. [2019-11-20 04:19:52,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 04:19:52,845 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:19:52,845 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] [2019-11-20 04:19:52,845 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:19:52,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:19:52,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1322773350, now seen corresponding path program 2 times [2019-11-20 04:19:52,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:19:52,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802457687] [2019-11-20 04:19:52,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:19:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:19:52,993 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 04:19:52,993 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802457687] [2019-11-20 04:19:52,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:19:52,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 04:19:52,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747389620] [2019-11-20 04:19:52,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:19:52,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:19:52,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:19:52,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:19:52,995 INFO L87 Difference]: Start difference. First operand 6680 states and 18667 transitions. Second operand 8 states. [2019-11-20 04:19:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:19:53,167 INFO L93 Difference]: Finished difference Result 11054 states and 31060 transitions. [2019-11-20 04:19:53,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:19:53,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 04:19:53,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:19:53,194 INFO L225 Difference]: With dead ends: 11054 [2019-11-20 04:19:53,194 INFO L226 Difference]: Without dead ends: 6248 [2019-11-20 04:19:53,195 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 04:19:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2019-11-20 04:19:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 6248. [2019-11-20 04:19:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6248 states. [2019-11-20 04:19:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 17587 transitions. [2019-11-20 04:19:53,334 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 17587 transitions. Word has length 35 [2019-11-20 04:19:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:19:53,335 INFO L462 AbstractCegarLoop]: Abstraction has 6248 states and 17587 transitions. [2019-11-20 04:19:53,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:19:53,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 17587 transitions. [2019-11-20 04:19:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 04:19:53,343 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:19:53,343 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] [2019-11-20 04:19:53,344 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:19:53,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:19:53,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1682367412, now seen corresponding path program 3 times [2019-11-20 04:19:53,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:19:53,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123797340] [2019-11-20 04:19:53,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:19:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:19:53,484 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 04:19:53,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123797340] [2019-11-20 04:19:53,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:19:53,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 04:19:53,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982602486] [2019-11-20 04:19:53,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:19:53,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:19:53,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:19:53,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:19:53,486 INFO L87 Difference]: Start difference. First operand 6248 states and 17587 transitions. Second operand 8 states. [2019-11-20 04:19:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:19:53,605 INFO L93 Difference]: Finished difference Result 4790 states and 13213 transitions. [2019-11-20 04:19:53,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:19:53,605 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 04:19:53,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:19:53,606 INFO L225 Difference]: With dead ends: 4790 [2019-11-20 04:19:53,606 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:19:53,606 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 04:19:53,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:19:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:19:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:19:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:19:53,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-20 04:19:53,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:19:53,608 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:19:53,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:19:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:19:53,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:19:53,611 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 04:19:53,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:19:53 BasicIcfg [2019-11-20 04:19:53,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:19:53,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:19:53,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:19:53,614 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:19:53,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:19:45" (3/4) ... [2019-11-20 04:19:53,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:19:53,634 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 04:19:53,634 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 04:19:53,634 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 04:19:53,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 04:19:53,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 04:19:53,639 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:19:53,677 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5db62fca-f445-4de0-9c07-020e6b869fab/bin/uautomizer/witness.graphml [2019-11-20 04:19:53,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:19:53,679 INFO L168 Benchmark]: Toolchain (without parser) took 9661.98 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 617.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -110.3 MB). Peak memory consumption was 507.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:19:53,679 INFO L168 Benchmark]: CDTParser took 0.16 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 04:19:53,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -129.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:19:53,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:19:53,680 INFO L168 Benchmark]: Boogie Preprocessor took 23.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:19:53,681 INFO L168 Benchmark]: RCFGBuilder took 455.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:19:53,681 INFO L168 Benchmark]: TraceAbstraction took 8417.53 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 510.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -30.0 MB). Peak memory consumption was 480.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:19:53,682 INFO L168 Benchmark]: Witness Printer took 64.32 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:19:53,684 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 634.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -129.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 455.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8417.53 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 510.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -30.0 MB). Peak memory consumption was 480.1 MB. Max. memory is 11.5 GB. * Witness Printer took 64.32 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 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: 8.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 948 SDslu, 1365 SDs, 0 SdLazy, 207 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31745occurred 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: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 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...