./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/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 90b22d2c530e50af1e0be1627f87711a60d58d61 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:28:22,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:28:22,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:28:22,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:28:22,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:28:22,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:28:22,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:28:22,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:28:22,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:28:22,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:28:22,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:28:22,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:28:22,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:28:22,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:28:22,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:28:22,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:28:22,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:28:22,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:28:22,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:28:22,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:28:22,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:28:22,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:28:22,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:28:22,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:28:22,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:28:22,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:28:22,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:28:22,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:28:22,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:28:22,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:28:22,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:28:22,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:28:22,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:28:22,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:28:22,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:28:22,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:28:22,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:28:22,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:28:22,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:28:22,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:28:22,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:28:22,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:28:22,115 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:28:22,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:28:22,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:28:22,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:28:22,122 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:28:22,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:28:22,122 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:28:22,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:28:22,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:28:22,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:28:22,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:28:22,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:28:22,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:28:22,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:28:22,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:28:22,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:28:22,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:28:22,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:28:22,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:28:22,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:28:22,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:28:22,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:28:22,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:28:22,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:28:22,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:28:22,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:28:22,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:28:22,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:28:22,126 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_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/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 -> 90b22d2c530e50af1e0be1627f87711a60d58d61 [2019-11-19 22:28:22,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:28:22,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:28:22,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:28:22,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:28:22,295 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:28:22,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i [2019-11-19 22:28:22,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/data/076ae80e3/2e3544352f144703afeadcf77b02d60b/FLAGf24a22d82 [2019-11-19 22:28:22,820 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:28:22,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i [2019-11-19 22:28:22,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/data/076ae80e3/2e3544352f144703afeadcf77b02d60b/FLAGf24a22d82 [2019-11-19 22:28:22,861 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/data/076ae80e3/2e3544352f144703afeadcf77b02d60b [2019-11-19 22:28:22,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:28:22,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:28:22,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:22,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:28:22,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:28:22,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:22" (1/1) ... [2019-11-19 22:28:22,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2e6d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:22, skipping insertion in model container [2019-11-19 22:28:22,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:22" (1/1) ... [2019-11-19 22:28:22,882 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:28:22,944 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:28:23,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:23,384 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:28:23,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:23,491 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:28:23,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23 WrapperNode [2019-11-19 22:28:23,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:23,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:23,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:28:23,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:28:23,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:23,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:28:23,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:28:23,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:28:23,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... [2019-11-19 22:28:23,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:28:23,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:28:23,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:28:23,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:28:23,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/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 22:28:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:28:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 22:28:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:28:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:28:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 22:28:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 22:28:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 22:28:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 22:28:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-19 22:28:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-19 22:28:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 22:28:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:28:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:28:23,655 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 22:28:23,962 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:28:23,962 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 22:28:23,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:23 BoogieIcfgContainer [2019-11-19 22:28:23,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:28:23,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:28:23,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:28:23,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:28:23,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:28:22" (1/3) ... [2019-11-19 22:28:23,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cdb626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:28:23, skipping insertion in model container [2019-11-19 22:28:23,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:23" (2/3) ... [2019-11-19 22:28:23,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cdb626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:28:23, skipping insertion in model container [2019-11-19 22:28:23,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:23" (3/3) ... [2019-11-19 22:28:23,970 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2019-11-19 22:28:24,019 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,019 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,019 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,019 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,020 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,020 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,020 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,021 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,021 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,021 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,022 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,022 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,022 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,022 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,022 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,023 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,023 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,024 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,024 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,025 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,025 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,025 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,025 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,026 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,026 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,026 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,026 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,027 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,027 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,027 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,027 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,028 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,028 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,028 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,028 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,029 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,029 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,029 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,029 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,030 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,030 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,030 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,030 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,031 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,031 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,031 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,031 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,032 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,032 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 22:28:24,060 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 22:28:24,060 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:28:24,067 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:28:24,080 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:28:24,101 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:28:24,101 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:28:24,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:28:24,102 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:28:24,102 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:28:24,102 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:28:24,102 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:28:24,102 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:28:24,116 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-19 22:28:27,728 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-19 22:28:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-19 22:28:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-19 22:28:27,797 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:28:27,798 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 22:28:27,799 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:28:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:27,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1190265277, now seen corresponding path program 1 times [2019-11-19 22:28:27,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:27,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492149092] [2019-11-19 22:28:27,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:28,272 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 22:28:28,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492149092] [2019-11-19 22:28:28,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:28,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 22:28:28,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759866278] [2019-11-19 22:28:28,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:28:28,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:28:28,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:28:28,296 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-19 22:28:29,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:29,060 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-19 22:28:29,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:28:29,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-19 22:28:29,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:28:29,239 INFO L225 Difference]: With dead ends: 33013 [2019-11-19 22:28:29,239 INFO L226 Difference]: Without dead ends: 14275 [2019-11-19 22:28:29,241 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 22:28:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-19 22:28:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-19 22:28:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-19 22:28:29,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-19 22:28:29,977 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-19 22:28:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:28:29,978 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-19 22:28:29,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:28:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-19 22:28:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-19 22:28:30,005 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:28:30,006 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 22:28:30,006 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:28:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:30,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1154058830, now seen corresponding path program 1 times [2019-11-19 22:28:30,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:30,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899155800] [2019-11-19 22:28:30,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:30,187 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 22:28:30,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899155800] [2019-11-19 22:28:30,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:30,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 22:28:30,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22010910] [2019-11-19 22:28:30,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:28:30,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:30,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:28:30,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:28:30,191 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-19 22:28:30,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:30,498 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-19 22:28:30,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:28:30,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-19 22:28:30,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:28:30,562 INFO L225 Difference]: With dead ends: 14275 [2019-11-19 22:28:30,563 INFO L226 Difference]: Without dead ends: 12574 [2019-11-19 22:28:30,564 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 22:28:30,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-19 22:28:30,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-19 22:28:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-19 22:28:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-19 22:28:31,044 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-19 22:28:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:28:31,045 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-19 22:28:31,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:28:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-19 22:28:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 22:28:31,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:28:31,072 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 22:28:31,072 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:28:31,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:31,072 INFO L82 PathProgramCache]: Analyzing trace with hash -789148811, now seen corresponding path program 1 times [2019-11-19 22:28:31,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:31,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655573726] [2019-11-19 22:28:31,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:28:31,222 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655573726] [2019-11-19 22:28:31,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:31,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 22:28:31,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464910073] [2019-11-19 22:28:31,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:28:31,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:31,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:28:31,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:28:31,224 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-19 22:28:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:31,509 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-19 22:28:31,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 22:28:31,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-19 22:28:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:28:31,535 INFO L225 Difference]: With dead ends: 8929 [2019-11-19 22:28:31,535 INFO L226 Difference]: Without dead ends: 7471 [2019-11-19 22:28:31,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:28:31,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-19 22:28:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-19 22:28:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-19 22:28:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-19 22:28:32,008 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-19 22:28:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:28:32,008 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-19 22:28:32,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:28:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-19 22:28:32,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-19 22:28:32,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:28:32,027 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:32,027 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:28:32,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:32,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1850841730, now seen corresponding path program 1 times [2019-11-19 22:28:32,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:32,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521949195] [2019-11-19 22:28:32,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:32,177 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 22:28:32,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521949195] [2019-11-19 22:28:32,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:32,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 22:28:32,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747461854] [2019-11-19 22:28:32,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:28:32,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:32,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:28:32,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:28:32,179 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 8 states. [2019-11-19 22:28:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:32,420 INFO L93 Difference]: Finished difference Result 12088 states and 34011 transitions. [2019-11-19 22:28:32,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 22:28:32,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-19 22:28:32,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:28:32,440 INFO L225 Difference]: With dead ends: 12088 [2019-11-19 22:28:32,440 INFO L226 Difference]: Without dead ends: 6679 [2019-11-19 22:28:32,441 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 22:28:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2019-11-19 22:28:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2019-11-19 22:28:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6679 states. [2019-11-19 22:28:32,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 18666 transitions. [2019-11-19 22:28:32,622 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 18666 transitions. Word has length 34 [2019-11-19 22:28:32,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:28:32,623 INFO L462 AbstractCegarLoop]: Abstraction has 6679 states and 18666 transitions. [2019-11-19 22:28:32,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:28:32,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 18666 transitions. [2019-11-19 22:28:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-19 22:28:32,636 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:28:32,636 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:32,636 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:28:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1484083538, now seen corresponding path program 2 times [2019-11-19 22:28:32,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:32,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603141701] [2019-11-19 22:28:32,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:32,750 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 22:28:32,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603141701] [2019-11-19 22:28:32,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:32,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 22:28:32,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126884543] [2019-11-19 22:28:32,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 22:28:32,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 22:28:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:28:32,752 INFO L87 Difference]: Start difference. First operand 6679 states and 18666 transitions. Second operand 7 states. [2019-11-19 22:28:32,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:32,944 INFO L93 Difference]: Finished difference Result 11053 states and 31059 transitions. [2019-11-19 22:28:32,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 22:28:32,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-19 22:28:32,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:28:32,963 INFO L225 Difference]: With dead ends: 11053 [2019-11-19 22:28:32,964 INFO L226 Difference]: Without dead ends: 6247 [2019-11-19 22:28:32,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-19 22:28:33,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2019-11-19 22:28:33,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6247. [2019-11-19 22:28:33,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6247 states. [2019-11-19 22:28:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6247 states to 6247 states and 17586 transitions. [2019-11-19 22:28:33,135 INFO L78 Accepts]: Start accepts. Automaton has 6247 states and 17586 transitions. Word has length 34 [2019-11-19 22:28:33,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:28:33,135 INFO L462 AbstractCegarLoop]: Abstraction has 6247 states and 17586 transitions. [2019-11-19 22:28:33,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 22:28:33,136 INFO L276 IsEmpty]: Start isEmpty. Operand 6247 states and 17586 transitions. [2019-11-19 22:28:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-19 22:28:33,147 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:28:33,147 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:33,147 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:28:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:33,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1534658866, now seen corresponding path program 3 times [2019-11-19 22:28:33,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:33,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351078286] [2019-11-19 22:28:33,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:33,271 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 22:28:33,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351078286] [2019-11-19 22:28:33,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:33,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 22:28:33,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012565590] [2019-11-19 22:28:33,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:28:33,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:33,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:28:33,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:28:33,273 INFO L87 Difference]: Start difference. First operand 6247 states and 17586 transitions. Second operand 8 states. [2019-11-19 22:28:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:33,400 INFO L93 Difference]: Finished difference Result 4789 states and 13212 transitions. [2019-11-19 22:28:33,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:28:33,400 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-19 22:28:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:28:33,400 INFO L225 Difference]: With dead ends: 4789 [2019-11-19 22:28:33,400 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:28:33,401 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 22:28:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:28:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:28:33,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:28:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:28:33,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-19 22:28:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:28:33,402 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:28:33,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:28:33,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:28:33,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:28:33,405 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 22:28:33,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:28:33 BasicIcfg [2019-11-19 22:28:33,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:28:33,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:28:33,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:28:33,407 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:28:33,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:23" (3/4) ... [2019-11-19 22:28:33,411 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:28:33,417 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 22:28:33,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 22:28:33,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-19 22:28:33,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-19 22:28:33,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 22:28:33,426 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:28:33,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39eb25e6-893a-4555-8f8e-e5a3dcfbe5b9/bin/uautomizer/witness.graphml [2019-11-19 22:28:33,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:28:33,483 INFO L168 Benchmark]: Toolchain (without parser) took 10616.32 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 438.3 MB). Free memory was 939.3 MB in the beginning and 924.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 453.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:33,484 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:28:33,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -132.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:33,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:28:33,485 INFO L168 Benchmark]: Boogie Preprocessor took 34.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:33,490 INFO L168 Benchmark]: RCFGBuilder took 374.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:33,491 INFO L168 Benchmark]: TraceAbstraction took 9442.75 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 332.9 MB). Free memory was 1.0 GB in the beginning and 938.3 MB in the end (delta: 104.6 MB). Peak memory consumption was 437.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:33,491 INFO L168 Benchmark]: Witness Printer took 74.03 ms. Allocated memory is still 1.5 GB. Free memory was 938.3 MB in the beginning and 924.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:33,493 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 624.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -132.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 374.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9442.75 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 332.9 MB). Free memory was 1.0 GB in the beginning and 938.3 MB in the end (delta: 104.6 MB). Peak memory consumption was 437.5 MB. Max. memory is 11.5 GB. * Witness Printer took 74.03 ms. Allocated memory is still 1.5 GB. Free memory was 938.3 MB in the beginning and 924.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 9.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 536 SDtfs, 906 SDslu, 1428 SDs, 0 SdLazy, 231 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31744occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18900 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...