./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_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_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/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 e6ac324937dcb830ded2162c28c92a3a84b747b3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:27:27,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:27:27,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:27:27,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:27:27,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:27:27,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:27:27,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:27:27,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:27:27,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:27:27,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:27:27,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:27:27,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:27:27,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:27:27,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:27:27,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:27:27,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:27:27,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:27:27,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:27:27,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:27:27,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:27:27,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:27:27,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:27:27,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:27:27,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:27:27,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:27:27,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:27:27,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:27:27,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:27:27,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:27:27,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:27:27,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:27:27,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:27:27,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:27:27,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:27:27,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:27:27,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:27:27,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:27:27,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:27:27,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:27:27,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:27:27,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:27:27,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:27:27,925 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:27:27,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:27:27,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:27:27,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:27:27,927 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:27:27,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:27:27,928 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:27:27,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:27:27,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:27:27,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:27:27,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:27:27,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:27:27,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:27:27,930 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:27:27,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:27:27,931 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:27:27,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:27:27,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:27:27,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:27:27,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:27:27,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:27:27,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:27:27,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:27:27,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:27:27,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:27:27,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:27:27,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:27:27,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:27:27,934 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_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/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 -> e6ac324937dcb830ded2162c28c92a3a84b747b3 [2019-11-19 23:27:28,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:27:28,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:27:28,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:27:28,176 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:27:28,177 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:27:28,178 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-11-19 23:27:28,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/data/5591100f4/105105e6ab0c4035a569af935f8c039c/FLAG7c67514c9 [2019-11-19 23:27:28,742 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:27:28,743 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-11-19 23:27:28,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/data/5591100f4/105105e6ab0c4035a569af935f8c039c/FLAG7c67514c9 [2019-11-19 23:27:28,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/data/5591100f4/105105e6ab0c4035a569af935f8c039c [2019-11-19 23:27:29,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:27:29,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:27:29,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:27:29,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:27:29,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:27:29,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66eeddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29, skipping insertion in model container [2019-11-19 23:27:29,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,020 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:27:29,072 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:27:29,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:27:29,617 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:27:29,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:27:29,769 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:27:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29 WrapperNode [2019-11-19 23:27:29,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:27:29,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:27:29,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:27:29,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:27:29,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:27:29,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:27:29,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:27:29,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:27:29,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... [2019-11-19 23:27:29,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:27:29,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:27:29,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:27:29,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:27:29,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/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 [2019-11-19 23:27:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:27:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 23:27:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:27:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:27:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 23:27:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 23:27:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 23:27:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 23:27:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-19 23:27:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-19 23:27:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 23:27:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:27:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:27:29,941 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-19 23:27:30,421 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:27:30,421 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 23:27:30,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:27:30 BoogieIcfgContainer [2019-11-19 23:27:30,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:27:30,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:27:30,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:27:30,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:27:30,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:27:29" (1/3) ... [2019-11-19 23:27:30,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaa839f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:27:30, skipping insertion in model container [2019-11-19 23:27:30,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:27:29" (2/3) ... [2019-11-19 23:27:30,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaa839f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:27:30, skipping insertion in model container [2019-11-19 23:27:30,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:27:30" (3/3) ... [2019-11-19 23:27:30,441 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-11-19 23:27:30,513 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,513 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,514 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,514 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,514 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,515 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,516 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,516 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,516 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,516 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,521 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,521 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,521 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,523 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,523 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,523 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,524 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,524 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,524 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,527 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,528 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,528 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,529 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,529 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,529 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,533 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,534 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,535 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,535 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,536 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,536 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,536 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,536 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,536 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,537 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 23:27:30,583 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 23:27:30,583 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:27:30,590 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:27:30,599 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:27:30,620 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:27:30,620 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:27:30,620 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:27:30,620 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:27:30,620 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:27:30,621 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:27:30,621 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:27:30,621 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:27:30,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-19 23:27:34,821 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31743 states. [2019-11-19 23:27:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 31743 states. [2019-11-19 23:27:34,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 23:27:34,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:27:34,903 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] [2019-11-19 23:27:34,904 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:27:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:27:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash 472898366, now seen corresponding path program 1 times [2019-11-19 23:27:34,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:27:34,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387990528] [2019-11-19 23:27:34,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:27:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:27:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:27:35,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387990528] [2019-11-19 23:27:35,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:27:35,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:27:35,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385024204] [2019-11-19 23:27:35,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:27:35,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:27:35,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:27:35,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:27:35,341 INFO L87 Difference]: Start difference. First operand 31743 states. Second operand 4 states. [2019-11-19 23:27:35,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:27:35,946 INFO L93 Difference]: Finished difference Result 33012 states and 103292 transitions. [2019-11-19 23:27:35,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:27:35,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-19 23:27:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:27:36,132 INFO L225 Difference]: With dead ends: 33012 [2019-11-19 23:27:36,132 INFO L226 Difference]: Without dead ends: 14274 [2019-11-19 23:27:36,134 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 [2019-11-19 23:27:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14274 states. [2019-11-19 23:27:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14274 to 14274. [2019-11-19 23:27:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14274 states. [2019-11-19 23:27:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 44297 transitions. [2019-11-19 23:27:37,271 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 44297 transitions. Word has length 30 [2019-11-19 23:27:37,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:27:37,275 INFO L462 AbstractCegarLoop]: Abstraction has 14274 states and 44297 transitions. [2019-11-19 23:27:37,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:27:37,276 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 44297 transitions. [2019-11-19 23:27:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-19 23:27:37,308 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:27:37,308 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] [2019-11-19 23:27:37,308 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:27:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:27:37,319 INFO L82 PathProgramCache]: Analyzing trace with hash 364621560, now seen corresponding path program 1 times [2019-11-19 23:27:37,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:27:37,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346759668] [2019-11-19 23:27:37,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:27:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:27:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:27:37,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346759668] [2019-11-19 23:27:37,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:27:37,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:27:37,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112903600] [2019-11-19 23:27:37,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 23:27:37,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:27:37,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:27:37,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:27:37,499 INFO L87 Difference]: Start difference. First operand 14274 states and 44297 transitions. Second operand 5 states. [2019-11-19 23:27:37,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:27:37,758 INFO L93 Difference]: Finished difference Result 14274 states and 42110 transitions. [2019-11-19 23:27:37,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:27:37,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-19 23:27:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:27:37,820 INFO L225 Difference]: With dead ends: 14274 [2019-11-19 23:27:37,820 INFO L226 Difference]: Without dead ends: 12573 [2019-11-19 23:27:37,821 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 [2019-11-19 23:27:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2019-11-19 23:27:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 12573. [2019-11-19 23:27:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12573 states. [2019-11-19 23:27:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12573 states to 12573 states and 38060 transitions. [2019-11-19 23:27:38,284 INFO L78 Accepts]: Start accepts. Automaton has 12573 states and 38060 transitions. Word has length 31 [2019-11-19 23:27:38,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:27:38,285 INFO L462 AbstractCegarLoop]: Abstraction has 12573 states and 38060 transitions. [2019-11-19 23:27:38,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 23:27:38,285 INFO L276 IsEmpty]: Start isEmpty. Operand 12573 states and 38060 transitions. [2019-11-19 23:27:38,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-19 23:27:38,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:27:38,318 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] [2019-11-19 23:27:38,318 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:27:38,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:27:38,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1407625271, now seen corresponding path program 1 times [2019-11-19 23:27:38,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:27:38,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176902527] [2019-11-19 23:27:38,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:27:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:27:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:27:38,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176902527] [2019-11-19 23:27:38,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:27:38,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 23:27:38,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267679869] [2019-11-19 23:27:38,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 23:27:38,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:27:38,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:27:38,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-19 23:27:38,508 INFO L87 Difference]: Start difference. First operand 12573 states and 38060 transitions. Second operand 6 states. [2019-11-19 23:27:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:27:38,762 INFO L93 Difference]: Finished difference Result 8928 states and 24938 transitions. [2019-11-19 23:27:38,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:27:38,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-19 23:27:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:27:38,787 INFO L225 Difference]: With dead ends: 8928 [2019-11-19 23:27:38,788 INFO L226 Difference]: Without dead ends: 7470 [2019-11-19 23:27:38,788 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 [2019-11-19 23:27:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2019-11-19 23:27:38,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7470. [2019-11-19 23:27:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2019-11-19 23:27:39,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 21050 transitions. [2019-11-19 23:27:39,326 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 21050 transitions. Word has length 32 [2019-11-19 23:27:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:27:39,326 INFO L462 AbstractCegarLoop]: Abstraction has 7470 states and 21050 transitions. [2019-11-19 23:27:39,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 23:27:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 21050 transitions. [2019-11-19 23:27:39,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 23:27:39,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:27:39,341 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] [2019-11-19 23:27:39,341 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:27:39,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:27:39,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1738485316, now seen corresponding path program 1 times [2019-11-19 23:27:39,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:27:39,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842178533] [2019-11-19 23:27:39,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:27:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:27:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:27:39,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842178533] [2019-11-19 23:27:39,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:27:39,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 23:27:39,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503704316] [2019-11-19 23:27:39,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 23:27:39,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:27:39,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:27:39,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-19 23:27:39,496 INFO L87 Difference]: Start difference. First operand 7470 states and 21050 transitions. Second operand 6 states. [2019-11-19 23:27:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:27:39,692 INFO L93 Difference]: Finished difference Result 12654 states and 35495 transitions. [2019-11-19 23:27:39,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:27:39,692 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-19 23:27:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:27:39,714 INFO L225 Difference]: With dead ends: 12654 [2019-11-19 23:27:39,714 INFO L226 Difference]: Without dead ends: 6471 [2019-11-19 23:27:39,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 23:27:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6471 states. [2019-11-19 23:27:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6471 to 6471. [2019-11-19 23:27:39,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6471 states. [2019-11-19 23:27:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 18107 transitions. [2019-11-19 23:27:39,892 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 18107 transitions. Word has length 33 [2019-11-19 23:27:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:27:39,893 INFO L462 AbstractCegarLoop]: Abstraction has 6471 states and 18107 transitions. [2019-11-19 23:27:39,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 23:27:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 18107 transitions. [2019-11-19 23:27:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 23:27:39,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:27:39,906 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] [2019-11-19 23:27:39,906 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:27:39,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:27:39,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1521739548, now seen corresponding path program 2 times [2019-11-19 23:27:39,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:27:39,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025828414] [2019-11-19 23:27:39,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:27:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:27:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:27:40,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025828414] [2019-11-19 23:27:40,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:27:40,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 23:27:40,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479964068] [2019-11-19 23:27:40,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 23:27:40,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:27:40,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:27:40,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:27:40,095 INFO L87 Difference]: Start difference. First operand 6471 states and 18107 transitions. Second operand 7 states. [2019-11-19 23:27:40,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:27:40,255 INFO L93 Difference]: Finished difference Result 11088 states and 31067 transitions. [2019-11-19 23:27:40,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:27:40,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-19 23:27:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:27:40,276 INFO L225 Difference]: With dead ends: 11088 [2019-11-19 23:27:40,277 INFO L226 Difference]: Without dead ends: 6246 [2019-11-19 23:27:40,277 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-19 23:27:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2019-11-19 23:27:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 6246. [2019-11-19 23:27:40,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6246 states. [2019-11-19 23:27:40,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17585 transitions. [2019-11-19 23:27:40,444 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17585 transitions. Word has length 33 [2019-11-19 23:27:40,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:27:40,445 INFO L462 AbstractCegarLoop]: Abstraction has 6246 states and 17585 transitions. [2019-11-19 23:27:40,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 23:27:40,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17585 transitions. [2019-11-19 23:27:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 23:27:40,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:27:40,455 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] [2019-11-19 23:27:40,455 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:27:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:27:40,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1742707500, now seen corresponding path program 3 times [2019-11-19 23:27:40,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:27:40,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625578998] [2019-11-19 23:27:40,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:27:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:27:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:27:40,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625578998] [2019-11-19 23:27:40,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:27:40,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 23:27:40,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958319185] [2019-11-19 23:27:40,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 23:27:40,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:27:40,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:27:40,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:27:40,603 INFO L87 Difference]: Start difference. First operand 6246 states and 17585 transitions. Second operand 8 states. [2019-11-19 23:27:40,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:27:40,752 INFO L93 Difference]: Finished difference Result 4788 states and 13211 transitions. [2019-11-19 23:27:40,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:27:40,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-19 23:27:40,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:27:40,754 INFO L225 Difference]: With dead ends: 4788 [2019-11-19 23:27:40,755 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:27:40,755 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 [2019-11-19 23:27:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:27:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:27:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:27:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:27:40,756 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-19 23:27:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:27:40,757 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:27:40,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 23:27:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:27:40,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:27:40,761 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 23:27:40,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:27:40 BasicIcfg [2019-11-19 23:27:40,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:27:40,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:27:40,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:27:40,765 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:27:40,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:27:30" (3/4) ... [2019-11-19 23:27:40,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:27:40,791 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 23:27:40,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 23:27:40,800 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-19 23:27:40,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-19 23:27:40,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 23:27:40,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:27:40,868 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_36bbfbb0-c790-4e9c-ba4c-46627cd30c16/bin/uautomizer/witness.graphml [2019-11-19 23:27:40,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:27:40,871 INFO L168 Benchmark]: Toolchain (without parser) took 11867.93 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 635.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -126.8 MB). Peak memory consumption was 508.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:40,872 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-19 23:27:40,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:40,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:27:40,873 INFO L168 Benchmark]: Boogie Preprocessor took 29.01 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. [2019-11-19 23:27:40,877 INFO L168 Benchmark]: RCFGBuilder took 568.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:40,879 INFO L168 Benchmark]: TraceAbstraction took 10340.69 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 472.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 497.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:40,880 INFO L168 Benchmark]: Witness Printer took 103.95 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:40,882 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 767.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.01 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 568.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10340.69 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 472.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 497.9 MB. Max. memory is 11.5 GB. * Witness Printer took 103.95 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 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, 89 locations, 1 error locations. Result: SAFE, OverallTime: 10.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 521 SDtfs, 833 SDslu, 1222 SDs, 0 SdLazy, 164 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31743occurred 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: 2.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16986 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...