./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/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 a1f6da3127691bb0e5394a1726d8987d9638d94e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:17,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:17,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:17,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:17,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:17,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:17,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:17,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:17,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:17,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:17,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:17,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:17,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:17,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:17,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:17,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:17,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:17,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:17,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:17,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:17,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:17,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:17,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:17,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:17,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:17,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:17,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:17,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:17,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:17,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:17,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:17,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:17,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:17,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:17,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:17,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:17,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:17,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:17,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:17,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:17,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:17,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:54:17,868 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:17,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:17,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:17,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:17,869 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:17,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:17,870 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:17,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:17,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:17,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:17,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:17,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:17,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:17,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:17,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:17,872 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:17,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:17,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:17,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:17,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:17,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:17,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:17,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:17,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:17,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:17,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:17,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:54:17,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:17,875 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_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/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 -> a1f6da3127691bb0e5394a1726d8987d9638d94e [2019-11-25 08:54:18,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:18,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:18,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:18,093 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:18,094 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:18,095 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i [2019-11-25 08:54:18,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/data/9db00e3ff/3e9c1ad5da174800a2ebfd50b22ac8c5/FLAG8b61b389a [2019-11-25 08:54:18,598 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:18,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i [2019-11-25 08:54:18,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/data/9db00e3ff/3e9c1ad5da174800a2ebfd50b22ac8c5/FLAG8b61b389a [2019-11-25 08:54:18,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/data/9db00e3ff/3e9c1ad5da174800a2ebfd50b22ac8c5 [2019-11-25 08:54:18,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:18,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:18,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:18,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:18,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:18,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:18" (1/1) ... [2019-11-25 08:54:18,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba274fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:18, skipping insertion in model container [2019-11-25 08:54:18,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:18" (1/1) ... [2019-11-25 08:54:18,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:18,957 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:19,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:19,430 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:19,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:19,559 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:19,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19 WrapperNode [2019-11-25 08:54:19,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:19,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:19,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:19,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:19,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:19,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:19,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:19,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:19,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... [2019-11-25 08:54:19,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:19,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:19,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:19,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:19,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:54:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:54:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:54:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:54:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:54:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:54:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:54:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:54:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:54:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:54:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:54:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:19,757 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:54:20,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:20,087 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:54:20,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:20 BoogieIcfgContainer [2019-11-25 08:54:20,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:20,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:20,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:20,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:20,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:18" (1/3) ... [2019-11-25 08:54:20,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afb12a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:20, skipping insertion in model container [2019-11-25 08:54:20,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:19" (2/3) ... [2019-11-25 08:54:20,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afb12a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:20, skipping insertion in model container [2019-11-25 08:54:20,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:20" (3/3) ... [2019-11-25 08:54:20,106 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2019-11-25 08:54:20,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,164 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,165 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,165 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,166 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,166 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,167 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,167 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,168 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,168 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,168 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,169 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,169 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,170 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,171 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,172 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,172 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,172 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,173 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,173 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,173 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:54:20,195 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:54:20,196 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:20,202 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:54:20,213 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:54:20,230 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:20,231 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:20,231 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:20,231 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:20,231 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:20,231 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:20,231 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:20,231 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:20,242 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 73 transitions [2019-11-25 08:54:20,386 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-11-25 08:54:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-11-25 08:54:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:54:20,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:20,415 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] [2019-11-25 08:54:20,416 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:20,422 INFO L82 PathProgramCache]: Analyzing trace with hash -257235676, now seen corresponding path program 1 times [2019-11-25 08:54:20,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:20,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426571573] [2019-11-25 08:54:20,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:20,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426571573] [2019-11-25 08:54:20,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:20,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:54:20,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063018863] [2019-11-25 08:54:20,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:20,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:20,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:20,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:20,835 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-11-25 08:54:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:20,949 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-11-25 08:54:20,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:54:20,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-11-25 08:54:20,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:20,993 INFO L225 Difference]: With dead ends: 1293 [2019-11-25 08:54:20,993 INFO L226 Difference]: Without dead ends: 599 [2019-11-25 08:54:20,995 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-11-25 08:54:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-11-25 08:54:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-11-25 08:54:21,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-11-25 08:54:21,097 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-11-25 08:54:21,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:21,097 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-11-25 08:54:21,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-11-25 08:54:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:54:21,100 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:21,100 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] [2019-11-25 08:54:21,101 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:21,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:21,101 INFO L82 PathProgramCache]: Analyzing trace with hash -503573346, now seen corresponding path program 1 times [2019-11-25 08:54:21,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:21,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55688031] [2019-11-25 08:54:21,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:21,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55688031] [2019-11-25 08:54:21,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:21,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:54:21,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481778632] [2019-11-25 08:54:21,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:21,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:21,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:21,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:21,211 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-11-25 08:54:21,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:21,287 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-11-25 08:54:21,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:21,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-25 08:54:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:21,293 INFO L225 Difference]: With dead ends: 599 [2019-11-25 08:54:21,293 INFO L226 Difference]: Without dead ends: 536 [2019-11-25 08:54:21,294 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 [2019-11-25 08:54:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-11-25 08:54:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-11-25 08:54:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-11-25 08:54:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-11-25 08:54:21,327 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-11-25 08:54:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:21,328 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-11-25 08:54:21,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-11-25 08:54:21,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:54:21,330 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:21,330 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] [2019-11-25 08:54:21,330 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:21,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:21,331 INFO L82 PathProgramCache]: Analyzing trace with hash -521154612, now seen corresponding path program 1 times [2019-11-25 08:54:21,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:21,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997468363] [2019-11-25 08:54:21,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:21,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:21,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997468363] [2019-11-25 08:54:21,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:21,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:54:21,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752019709] [2019-11-25 08:54:21,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:54:21,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:21,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:54:21,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:54:21,479 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-11-25 08:54:21,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:21,588 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-11-25 08:54:21,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:21,589 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-25 08:54:21,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:21,593 INFO L225 Difference]: With dead ends: 401 [2019-11-25 08:54:21,593 INFO L226 Difference]: Without dead ends: 347 [2019-11-25 08:54:21,593 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 [2019-11-25 08:54:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-11-25 08:54:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-11-25 08:54:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-25 08:54:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-11-25 08:54:21,609 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-11-25 08:54:21,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:21,609 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-11-25 08:54:21,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:54:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-11-25 08:54:21,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:54:21,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:21,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:21,612 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:21,612 INFO L82 PathProgramCache]: Analyzing trace with hash -954980242, now seen corresponding path program 1 times [2019-11-25 08:54:21,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:21,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033499412] [2019-11-25 08:54:21,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:21,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033499412] [2019-11-25 08:54:21,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:21,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:54:21,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529493878] [2019-11-25 08:54:21,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:54:21,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:21,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:54:21,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:21,772 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 7 states. [2019-11-25 08:54:21,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:21,996 INFO L93 Difference]: Finished difference Result 725 states and 1957 transitions. [2019-11-25 08:54:21,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:54:21,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-11-25 08:54:21,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:21,999 INFO L225 Difference]: With dead ends: 725 [2019-11-25 08:54:22,000 INFO L226 Difference]: Without dead ends: 278 [2019-11-25 08:54:22,001 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:54:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-25 08:54:22,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-25 08:54:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-25 08:54:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 724 transitions. [2019-11-25 08:54:22,012 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 724 transitions. Word has length 32 [2019-11-25 08:54:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:22,013 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 724 transitions. [2019-11-25 08:54:22,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:54:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 724 transitions. [2019-11-25 08:54:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:54:22,016 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:22,017 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:22,017 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash -544214900, now seen corresponding path program 2 times [2019-11-25 08:54:22,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:22,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536731356] [2019-11-25 08:54:22,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:22,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536731356] [2019-11-25 08:54:22,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:22,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:54:22,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141842435] [2019-11-25 08:54:22,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:54:22,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:22,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:54:22,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:22,190 INFO L87 Difference]: Start difference. First operand 278 states and 724 transitions. Second operand 8 states. [2019-11-25 08:54:22,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:22,352 INFO L93 Difference]: Finished difference Result 449 states and 1204 transitions. [2019-11-25 08:54:22,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:54:22,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-25 08:54:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:22,363 INFO L225 Difference]: With dead ends: 449 [2019-11-25 08:54:22,363 INFO L226 Difference]: Without dead ends: 251 [2019-11-25 08:54:22,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:54:22,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-25 08:54:22,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-11-25 08:54:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-11-25 08:54:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-11-25 08:54:22,373 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-11-25 08:54:22,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:22,374 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-11-25 08:54:22,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:54:22,374 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-11-25 08:54:22,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:54:22,375 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:22,375 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:22,375 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:22,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:22,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1408076938, now seen corresponding path program 3 times [2019-11-25 08:54:22,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:22,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235886342] [2019-11-25 08:54:22,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:22,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:22,516 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235886342] [2019-11-25 08:54:22,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:22,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:54:22,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184745963] [2019-11-25 08:54:22,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:54:22,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:22,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:54:22,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:22,518 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-11-25 08:54:22,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:22,622 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-11-25 08:54:22,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:22,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-25 08:54:22,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:22,623 INFO L225 Difference]: With dead ends: 197 [2019-11-25 08:54:22,623 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:54:22,623 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:54:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:54:22,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:54:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:54:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:22,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-11-25 08:54:22,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:22,624 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:22,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:54:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:22,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:54:22,627 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:54:22,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:22 BasicIcfg [2019-11-25 08:54:22,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:22,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:22,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:22,632 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:22,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:20" (3/4) ... [2019-11-25 08:54:22,636 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:54:22,644 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:54:22,644 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:54:22,644 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:54:22,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:54:22,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:54:22,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:54:22,725 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a42378a0-1371-4cea-87b5-4c4cc4bb27f1/bin/uautomizer/witness.graphml [2019-11-25 08:54:22,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:22,727 INFO L168 Benchmark]: Toolchain (without parser) took 3838.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:22,728 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:22,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:22,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:22,729 INFO L168 Benchmark]: Boogie Preprocessor took 44.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:22,730 INFO L168 Benchmark]: RCFGBuilder took 423.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:22,734 INFO L168 Benchmark]: TraceAbstraction took 2539.68 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: -11.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:22,735 INFO L168 Benchmark]: Witness Printer took 93.68 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:22,736 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 667.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.88 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 44.23 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 423.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2539.68 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: -11.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 93.68 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 88 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 291 SDtfs, 432 SDslu, 835 SDs, 0 SdLazy, 124 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16334 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...