./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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/safe010_tso.oepc.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 4b3d9e30c58a8f6799b9b6c32f33065901bf03c9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 00:29:17,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:29:17,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:29:17,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:29:17,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:29:17,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:29:17,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:29:17,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:29:17,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:29:17,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:29:17,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:29:17,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:29:17,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:29:17,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:29:17,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:29:17,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:29:17,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:29:17,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:29:17,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:29:17,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:29:17,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:29:17,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:29:17,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:29:17,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:29:17,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:29:17,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:29:17,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:29:17,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:29:17,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:29:17,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:29:17,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:29:17,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:29:17,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:29:17,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:29:17,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:29:17,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:29:17,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:29:17,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:29:17,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:29:17,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:29:17,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:29:17,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:29:17,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:29:17,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:29:17,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:29:17,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:29:17,267 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:29:17,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:29:17,269 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:29:17,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:29:17,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:29:17,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:29:17,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:29:17,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:29:17,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:29:17,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:29:17,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:29:17,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:29:17,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:29:17,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:29:17,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:29:17,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:29:17,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:29:17,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:29:17,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:29:17,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:29:17,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:29:17,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:29:17,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:29:17,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:29:17,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:29:17,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3d9e30c58a8f6799b9b6c32f33065901bf03c9 [2020-10-26 00:29:17,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:29:17,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:29:17,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:29:17,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:29:17,815 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:29:17,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2020-10-26 00:29:17,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1a043f9/9342d78e49e045f6ba7d877a946a9ddd/FLAG9da323466 [2020-10-26 00:29:18,595 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:29:18,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2020-10-26 00:29:18,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1a043f9/9342d78e49e045f6ba7d877a946a9ddd/FLAG9da323466 [2020-10-26 00:29:18,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1a043f9/9342d78e49e045f6ba7d877a946a9ddd [2020-10-26 00:29:18,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:29:18,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:29:18,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:29:18,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:29:18,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:29:18,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:29:18" (1/1) ... [2020-10-26 00:29:18,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22710afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:18, skipping insertion in model container [2020-10-26 00:29:18,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:29:18" (1/1) ... [2020-10-26 00:29:18,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:29:19,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:29:19,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:29:19,472 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:29:19,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:29:19,642 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:29:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19 WrapperNode [2020-10-26 00:29:19,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:29:19,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:29:19,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:29:19,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:29:19,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:29:19,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:29:19,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:29:19,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:29:19,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (1/1) ... [2020-10-26 00:29:19,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:29:19,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:29:19,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:29:19,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:29:19,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (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 [2020-10-26 00:29:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:29:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:29:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:29:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:29:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:29:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:29:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:29:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:29:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:29:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:29:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:29:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:29:19,810 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-26 00:29:20,174 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:29:20,174 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:29:20,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:29:20 BoogieIcfgContainer [2020-10-26 00:29:20,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:29:20,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:29:20,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:29:20,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:29:20,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:29:18" (1/3) ... [2020-10-26 00:29:20,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e76e563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:29:20, skipping insertion in model container [2020-10-26 00:29:20,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:29:19" (2/3) ... [2020-10-26 00:29:20,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e76e563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:29:20, skipping insertion in model container [2020-10-26 00:29:20,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:29:20" (3/3) ... [2020-10-26 00:29:20,187 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-10-26 00:29:20,201 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:29:20,201 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:29:20,207 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:29:20,208 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:29:20,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,259 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,260 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,261 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,261 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,306 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,306 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:29:20,329 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:29:20,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-26 00:29:20,373 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:29:20,373 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:29:20,373 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:29:20,373 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:29:20,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:29:20,374 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:29:20,374 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:29:20,374 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:29:20,389 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:29:20,391 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-10-26 00:29:20,395 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-10-26 00:29:20,397 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-10-26 00:29:20,447 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-10-26 00:29:20,447 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:29:20,452 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-26 00:29:20,458 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-26 00:29:22,391 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-26 00:29:22,625 INFO L131 LiptonReduction]: Checked pairs total: 1636 [2020-10-26 00:29:22,625 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-10-26 00:29:22,631 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-26 00:29:22,643 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-26 00:29:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-26 00:29:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-26 00:29:22,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:29:22,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-26 00:29:22,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:29:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:29:22,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1312316534, now seen corresponding path program 1 times [2020-10-26 00:29:22,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:29:22,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133523703] [2020-10-26 00:29:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:29:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:29:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:29:22,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133523703] [2020-10-26 00:29:22,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:29:22,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:29:22,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809047633] [2020-10-26 00:29:22,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:29:22,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:29:22,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:29:22,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:29:22,909 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-26 00:29:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:29:22,942 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-26 00:29:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:29:22,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-26 00:29:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:29:22,956 INFO L225 Difference]: With dead ends: 72 [2020-10-26 00:29:22,956 INFO L226 Difference]: Without dead ends: 56 [2020-10-26 00:29:22,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:29:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-26 00:29:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-26 00:29:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-26 00:29:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-26 00:29:23,003 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-26 00:29:23,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:29:23,004 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-26 00:29:23,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:29:23,004 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-26 00:29:23,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 00:29:23,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:29:23,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:29:23,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:29:23,009 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:29:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:29:23,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2038978314, now seen corresponding path program 1 times [2020-10-26 00:29:23,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:29:23,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646596865] [2020-10-26 00:29:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:29:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:29:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:29:23,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646596865] [2020-10-26 00:29:23,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:29:23,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:29:23,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598802306] [2020-10-26 00:29:23,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:29:23,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:29:23,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:29:23,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:29:23,093 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-10-26 00:29:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:29:23,110 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-10-26 00:29:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:29:23,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-26 00:29:23,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:29:23,112 INFO L225 Difference]: With dead ends: 53 [2020-10-26 00:29:23,112 INFO L226 Difference]: Without dead ends: 53 [2020-10-26 00:29:23,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:29:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-26 00:29:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-26 00:29:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-26 00:29:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-10-26 00:29:23,123 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-10-26 00:29:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:29:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-10-26 00:29:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:29:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-10-26 00:29:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 00:29:23,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:29:23,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:29:23,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:29:23,125 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:29:23,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:29:23,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1216180213, now seen corresponding path program 1 times [2020-10-26 00:29:23,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:29:23,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085960430] [2020-10-26 00:29:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:29:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:29:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:29:23,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085960430] [2020-10-26 00:29:23,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:29:23,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:29:23,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320551122] [2020-10-26 00:29:23,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:29:23,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:29:23,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:29:23,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:29:23,194 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-10-26 00:29:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:29:23,220 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-26 00:29:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:29:23,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-26 00:29:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:29:23,221 INFO L225 Difference]: With dead ends: 60 [2020-10-26 00:29:23,221 INFO L226 Difference]: Without dead ends: 36 [2020-10-26 00:29:23,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:29:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-26 00:29:23,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-26 00:29:23,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-26 00:29:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-26 00:29:23,228 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-10-26 00:29:23,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:29:23,228 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-26 00:29:23,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:29:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-26 00:29:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-26 00:29:23,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:29:23,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:29:23,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:29:23,230 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:29:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:29:23,230 INFO L82 PathProgramCache]: Analyzing trace with hash -953134969, now seen corresponding path program 1 times [2020-10-26 00:29:23,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:29:23,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195603119] [2020-10-26 00:29:23,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:29:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:29:23,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:29:23,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195603119] [2020-10-26 00:29:23,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:29:23,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:29:23,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118526844] [2020-10-26 00:29:23,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:29:23,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:29:23,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:29:23,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:29:23,367 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-26 00:29:23,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:29:23,397 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-26 00:29:23,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:29:23,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-26 00:29:23,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:29:23,398 INFO L225 Difference]: With dead ends: 39 [2020-10-26 00:29:23,398 INFO L226 Difference]: Without dead ends: 29 [2020-10-26 00:29:23,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:29:23,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-26 00:29:23,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-26 00:29:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-26 00:29:23,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-26 00:29:23,403 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-10-26 00:29:23,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:29:23,404 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-26 00:29:23,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:29:23,404 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-26 00:29:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:29:23,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:29:23,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:29:23,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:29:23,405 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:29:23,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:29:23,406 INFO L82 PathProgramCache]: Analyzing trace with hash 466385382, now seen corresponding path program 1 times [2020-10-26 00:29:23,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:29:23,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680002035] [2020-10-26 00:29:23,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:29:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:29:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:29:23,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680002035] [2020-10-26 00:29:23,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:29:23,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:29:23,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906330742] [2020-10-26 00:29:23,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:29:23,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:29:23,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:29:23,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:29:23,473 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-10-26 00:29:23,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:29:23,509 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-10-26 00:29:23,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:29:23,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-26 00:29:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:29:23,511 INFO L225 Difference]: With dead ends: 27 [2020-10-26 00:29:23,511 INFO L226 Difference]: Without dead ends: 22 [2020-10-26 00:29:23,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:29:23,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-26 00:29:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-26 00:29:23,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-26 00:29:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-26 00:29:23,515 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-10-26 00:29:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:29:23,515 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-26 00:29:23,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:29:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-26 00:29:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:29:23,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:29:23,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:29:23,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:29:23,517 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:29:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:29:23,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1480685439, now seen corresponding path program 1 times [2020-10-26 00:29:23,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:29:23,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880800832] [2020-10-26 00:29:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:29:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:29:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:29:23,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880800832] [2020-10-26 00:29:23,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:29:23,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:29:23,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053938471] [2020-10-26 00:29:23,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:29:23,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:29:23,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:29:23,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:29:23,563 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-10-26 00:29:23,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:29:23,570 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-26 00:29:23,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:29:23,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-26 00:29:23,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:29:23,574 INFO L225 Difference]: With dead ends: 21 [2020-10-26 00:29:23,574 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:29:23,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:29:23,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:29:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:29:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:29:23,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:29:23,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-26 00:29:23,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:29:23,576 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:29:23,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:29:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:29:23,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:29:23,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:29:23,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:29:23 BasicIcfg [2020-10-26 00:29:23,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:29:23,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:29:23,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:29:23,586 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:29:23,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:29:20" (3/4) ... [2020-10-26 00:29:23,592 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:29:23,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:29:23,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:29:23,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-26 00:29:23,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:29:23,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:29:23,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:29:23,665 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:29:23,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:29:23,668 INFO L168 Benchmark]: Toolchain (without parser) took 4725.43 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 40.9 MB in the beginning and 32.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2020-10-26 00:29:23,669 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 24.0 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:29:23,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.52 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 36.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:29:23,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.54 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 34.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:29:23,671 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 33.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:29:23,671 INFO L168 Benchmark]: RCFGBuilder took 454.42 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 27.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-10-26 00:29:23,672 INFO L168 Benchmark]: TraceAbstraction took 3405.51 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 27.5 MB in the beginning and 36.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2020-10-26 00:29:23,673 INFO L168 Benchmark]: Witness Printer took 80.56 ms. Allocated memory is still 83.9 MB. Free memory was 35.4 MB in the beginning and 32.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:29:23,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 24.0 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.52 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 36.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.54 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 34.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.86 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 33.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 454.42 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 27.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3405.51 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 27.5 MB in the beginning and 36.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Witness Printer took 80.56 ms. Allocated memory is still 83.9 MB. Free memory was 35.4 MB in the beginning and 32.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 538 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1636 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, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 71 SDtfs, 43 SDslu, 61 SDs, 0 SdLazy, 47 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 0.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1120 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...