./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0fd1ce32e60332058e6b414d36029fafca9079a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:06:21,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:06:21,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:06:21,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:06:21,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:06:21,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:06:21,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:06:21,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:06:21,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:06:21,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:06:21,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:06:21,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:06:21,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:06:21,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:06:21,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:06:21,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:06:21,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:06:21,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:06:21,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:06:21,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:06:21,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:06:21,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:06:21,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:06:21,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:06:21,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:06:21,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:06:21,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:06:21,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:06:21,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:06:21,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:06:21,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:06:21,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:06:21,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:06:21,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:06:21,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:06:21,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:06:21,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:06:21,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:06:21,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:06:21,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:06:21,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:06:21,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:06:22,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:06:22,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:06:22,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:06:22,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:06:22,023 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:06:22,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:06:22,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:06:22,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:06:22,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:06:22,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:06:22,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:06:22,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:06:22,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:06:22,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:06:22,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:06:22,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:06:22,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:06:22,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:06:22,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:06:22,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:06:22,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:06:22,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:06:22,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:06:22,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:06:22,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:06:22,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:06:22,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:06:22,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:06:22,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:06:22,031 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> a0fd1ce32e60332058e6b414d36029fafca9079a [2020-10-20 03:06:22,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:06:22,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:06:22,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:06:22,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:06:22,288 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:06:22,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i [2020-10-20 03:06:22,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cba50b0/0558c73a4e694d1b9c3ec15d467e25b9/FLAGb17a229f9 [2020-10-20 03:06:22,869 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:06:22,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe022_tso.opt.i [2020-10-20 03:06:22,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cba50b0/0558c73a4e694d1b9c3ec15d467e25b9/FLAGb17a229f9 [2020-10-20 03:06:23,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cba50b0/0558c73a4e694d1b9c3ec15d467e25b9 [2020-10-20 03:06:23,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:06:23,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:06:23,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:06:23,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:06:23,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:06:23,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:23,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31051a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23, skipping insertion in model container [2020-10-20 03:06:23,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:23,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:06:23,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:06:23,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:06:23,845 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:06:23,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:06:23,973 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:06:23,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23 WrapperNode [2020-10-20 03:06:23,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:06:23,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:06:23,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:06:23,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:06:23,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:06:24,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:06:24,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:06:24,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:06:24,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... [2020-10-20 03:06:24,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:06:24,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:06:24,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:06:24,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:06:24,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 03:06:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:06:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:06:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:06:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:06:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:06:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:06:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:06:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:06:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:06:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:06:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:06:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:06:24,142 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:06:24,498 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:06:24,499 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:06:24,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:06:24 BoogieIcfgContainer [2020-10-20 03:06:24,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:06:24,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:06:24,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:06:24,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:06:24,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:06:23" (1/3) ... [2020-10-20 03:06:24,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5072dd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:06:24, skipping insertion in model container [2020-10-20 03:06:24,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:06:23" (2/3) ... [2020-10-20 03:06:24,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5072dd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:06:24, skipping insertion in model container [2020-10-20 03:06:24,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:06:24" (3/3) ... [2020-10-20 03:06:24,518 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2020-10-20 03:06:24,532 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:06:24,532 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:06:24,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:06:24,540 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:06:24,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,568 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,568 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,570 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,570 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,570 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,582 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,582 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,582 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,583 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:06:24,585 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:06:24,599 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 03:06:24,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:06:24,619 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:06:24,619 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:06:24,619 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:06:24,619 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:06:24,619 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:06:24,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:06:24,620 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:06:24,633 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:06:24,636 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-20 03:06:24,639 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-20 03:06:24,641 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-20 03:06:24,681 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-20 03:06:24,681 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:06:24,686 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-20 03:06:24,691 INFO L117 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-20 03:06:26,190 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-20 03:06:26,523 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-20 03:06:26,659 INFO L132 LiptonReduction]: Checked pairs total: 1892 [2020-10-20 03:06:26,659 INFO L134 LiptonReduction]: Total number of compositions: 66 [2020-10-20 03:06:26,666 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-20 03:06:26,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-20 03:06:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-20 03:06:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 03:06:26,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:06:26,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 03:06:26,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:06:26,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:06:26,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-20 03:06:26,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:06:26,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801861215] [2020-10-20 03:06:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:06:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:06:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:06:26,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801861215] [2020-10-20 03:06:26,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:06:26,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:06:26,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767263722] [2020-10-20 03:06:26,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:06:26,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:06:26,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:06:26,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:06:26,911 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-20 03:06:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:06:26,930 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-20 03:06:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:06:26,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-20 03:06:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:06:26,944 INFO L225 Difference]: With dead ends: 90 [2020-10-20 03:06:26,944 INFO L226 Difference]: Without dead ends: 74 [2020-10-20 03:06:26,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:06:26,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-20 03:06:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-20 03:06:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-20 03:06:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-20 03:06:26,991 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-20 03:06:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:06:26,991 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-20 03:06:26,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:06:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-20 03:06:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 03:06:26,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:06:26,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:06:26,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:06:26,993 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:06:26,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:06:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-20 03:06:26,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:06:26,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266161148] [2020-10-20 03:06:26,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:06:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:06:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:06:27,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266161148] [2020-10-20 03:06:27,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:06:27,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:06:27,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085004195] [2020-10-20 03:06:27,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:06:27,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:06:27,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:06:27,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:06:27,119 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 5 states. [2020-10-20 03:06:27,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:06:27,217 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-20 03:06:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:06:27,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-20 03:06:27,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:06:27,220 INFO L225 Difference]: With dead ends: 82 [2020-10-20 03:06:27,220 INFO L226 Difference]: Without dead ends: 66 [2020-10-20 03:06:27,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:06:27,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-20 03:06:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-20 03:06:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 03:06:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-20 03:06:27,231 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-20 03:06:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:06:27,231 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-20 03:06:27,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:06:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-20 03:06:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:06:27,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:06:27,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:06:27,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:06:27,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:06:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:06:27,233 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-10-20 03:06:27,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:06:27,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967203955] [2020-10-20 03:06:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:06:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:06:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:06:27,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967203955] [2020-10-20 03:06:27,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:06:27,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:06:27,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458582672] [2020-10-20 03:06:27,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:06:27,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:06:27,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:06:27,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:06:27,336 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 6 states. [2020-10-20 03:06:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:06:27,436 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-10-20 03:06:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 03:06:27,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-10-20 03:06:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:06:27,438 INFO L225 Difference]: With dead ends: 78 [2020-10-20 03:06:27,438 INFO L226 Difference]: Without dead ends: 42 [2020-10-20 03:06:27,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 03:06:27,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-20 03:06:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-20 03:06:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 03:06:27,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-10-20 03:06:27,445 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2020-10-20 03:06:27,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:06:27,445 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-10-20 03:06:27,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:06:27,446 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-10-20 03:06:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:06:27,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:06:27,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:06:27,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:06:27,447 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:06:27,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:06:27,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-10-20 03:06:27,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:06:27,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242318941] [2020-10-20 03:06:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:06:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:06:27,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:06:27,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242318941] [2020-10-20 03:06:27,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:06:27,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:06:27,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500002210] [2020-10-20 03:06:27,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:06:27,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:06:27,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:06:27,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:06:27,544 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 4 states. [2020-10-20 03:06:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:06:27,571 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2020-10-20 03:06:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:06:27,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 03:06:27,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:06:27,572 INFO L225 Difference]: With dead ends: 43 [2020-10-20 03:06:27,572 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 03:06:27,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:06:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 03:06:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 03:06:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 03:06:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-20 03:06:27,578 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 10 [2020-10-20 03:06:27,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:06:27,578 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-20 03:06:27,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:06:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-20 03:06:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:06:27,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:06:27,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:06:27,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:06:27,580 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:06:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:06:27,581 INFO L82 PathProgramCache]: Analyzing trace with hash 215135871, now seen corresponding path program 1 times [2020-10-20 03:06:27,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:06:27,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069937694] [2020-10-20 03:06:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:06:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:06:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:06:27,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069937694] [2020-10-20 03:06:27,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:06:27,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:06:27,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630998670] [2020-10-20 03:06:27,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:06:27,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:06:27,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:06:27,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:06:27,666 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 5 states. [2020-10-20 03:06:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:06:27,704 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2020-10-20 03:06:27,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:06:27,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 03:06:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:06:27,705 INFO L225 Difference]: With dead ends: 28 [2020-10-20 03:06:27,705 INFO L226 Difference]: Without dead ends: 23 [2020-10-20 03:06:27,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:06:27,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-20 03:06:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-20 03:06:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 03:06:27,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-10-20 03:06:27,709 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 11 [2020-10-20 03:06:27,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:06:27,709 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-10-20 03:06:27,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:06:27,709 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-10-20 03:06:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:06:27,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:06:27,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:06:27,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:06:27,710 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:06:27,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:06:27,711 INFO L82 PathProgramCache]: Analyzing trace with hash 536770965, now seen corresponding path program 1 times [2020-10-20 03:06:27,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:06:27,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487518312] [2020-10-20 03:06:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:06:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:06:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:06:27,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487518312] [2020-10-20 03:06:27,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:06:27,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:06:27,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862154459] [2020-10-20 03:06:27,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:06:27,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:06:27,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:06:27,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:06:27,772 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 5 states. [2020-10-20 03:06:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:06:27,798 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2020-10-20 03:06:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:06:27,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:06:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:06:27,798 INFO L225 Difference]: With dead ends: 22 [2020-10-20 03:06:27,799 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:06:27,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:06:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:06:27,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:06:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:06:27,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:06:27,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-20 03:06:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:06:27,800 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:06:27,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:06:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:06:27,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:06:27,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:06:27,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:06:27 BasicIcfg [2020-10-20 03:06:27,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:06:27,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:06:27,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:06:27,806 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:06:27,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:06:24" (3/4) ... [2020-10-20 03:06:27,810 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:06:27,817 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:06:27,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:06:27,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-20 03:06:27,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:06:27,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:06:27,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:06:27,872 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:06:27,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:06:27,874 INFO L168 Benchmark]: Toolchain (without parser) took 4645.08 ms. Allocated memory was 36.2 MB in the beginning and 67.6 MB in the end (delta: 31.5 MB). Free memory was 7.9 MB in the beginning and 10.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,875 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 14.5 MB in the beginning and 14.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.95 ms. Allocated memory was 36.2 MB in the beginning and 47.7 MB in the end (delta: 11.5 MB). Free memory was 7.1 MB in the beginning and 20.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.13 ms. Allocated memory is still 47.7 MB. Free memory was 20.5 MB in the beginning and 18.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,877 INFO L168 Benchmark]: Boogie Preprocessor took 29.73 ms. Allocated memory is still 47.7 MB. Free memory was 18.5 MB in the beginning and 16.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,878 INFO L168 Benchmark]: RCFGBuilder took 454.97 ms. Allocated memory was 47.7 MB in the beginning and 48.8 MB in the end (delta: 1.0 MB). Free memory was 16.9 MB in the beginning and 29.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,878 INFO L168 Benchmark]: TraceAbstraction took 3294.53 ms. Allocated memory was 48.8 MB in the beginning and 67.6 MB in the end (delta: 18.9 MB). Free memory was 29.6 MB in the beginning and 13.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,879 INFO L168 Benchmark]: Witness Printer took 66.99 ms. Allocated memory is still 67.6 MB. Free memory was 13.5 MB in the beginning and 10.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:06:27,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 14.5 MB in the beginning and 14.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 738.95 ms. Allocated memory was 36.2 MB in the beginning and 47.7 MB in the end (delta: 11.5 MB). Free memory was 7.1 MB in the beginning and 20.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.13 ms. Allocated memory is still 47.7 MB. Free memory was 20.5 MB in the beginning and 18.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.73 ms. Allocated memory is still 47.7 MB. Free memory was 18.5 MB in the beginning and 16.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 454.97 ms. Allocated memory was 47.7 MB in the beginning and 48.8 MB in the end (delta: 1.0 MB). Free memory was 16.9 MB in the beginning and 29.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3294.53 ms. Allocated memory was 48.8 MB in the beginning and 67.6 MB in the end (delta: 18.9 MB). Free memory was 29.6 MB in the beginning and 13.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 14.3 GB. * Witness Printer took 66.99 ms. Allocated memory is still 67.6 MB. Free memory was 13.5 MB in the beginning and 10.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 547 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 79 SDtfs, 82 SDslu, 122 SDs, 0 SdLazy, 91 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1644 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...