./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/safe037_pso.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 3fa1ffa37f011d693047d2e96778a69bf7fbb304 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 22:25:44,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:25:44,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:25:44,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:25:44,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:25:44,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:25:44,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:25:44,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:25:44,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:25:44,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:25:44,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:25:44,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:25:44,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:25:44,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:25:44,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:25:44,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:25:44,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:25:44,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:25:44,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:25:44,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:25:44,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:25:44,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:25:44,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:25:44,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:25:44,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:25:44,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:25:44,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:25:44,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:25:44,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:25:44,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:25:44,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:25:44,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:25:44,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:25:44,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:25:44,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:25:44,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:25:44,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:25:44,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:25:44,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:25:44,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:25:44,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:25:44,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:25:45,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:25:45,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:25:45,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:25:45,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:25:45,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:25:45,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:25:45,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:25:45,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:25:45,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:25:45,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:25:45,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:25:45,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:25:45,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:25:45,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:25:45,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:25:45,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:25:45,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa1ffa37f011d693047d2e96778a69bf7fbb304 [2021-08-29 22:25:45,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:25:45,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:25:45,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:25:45,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:25:45,325 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:25:45,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i [2021-08-29 22:25:45,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9f530b9/cfb25ab6574e4274b2a963c595f96209/FLAG8f4c6c8e2 [2021-08-29 22:25:45,824 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:25:45,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i [2021-08-29 22:25:45,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9f530b9/cfb25ab6574e4274b2a963c595f96209/FLAG8f4c6c8e2 [2021-08-29 22:25:46,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9f530b9/cfb25ab6574e4274b2a963c595f96209 [2021-08-29 22:25:46,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:25:46,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:25:46,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:25:46,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:25:46,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:25:46,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46, skipping insertion in model container [2021-08-29 22:25:46,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:25:46,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:25:46,476 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i[950,963] [2021-08-29 22:25:46,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:25:46,607 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:25:46,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i[950,963] [2021-08-29 22:25:46,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:25:46,667 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:25:46,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46 WrapperNode [2021-08-29 22:25:46,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:25:46,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:25:46,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:25:46,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:25:46,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:25:46,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:25:46,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:25:46,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:25:46,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:25:46,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:25:46,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:25:46,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:25:46,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (1/1) ... [2021-08-29 22:25:46,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:25:46,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:25:46,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 22:25:46,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 22:25:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:25:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:25:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:25:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:25:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:25:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:25:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:25:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:25:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-29 22:25:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-29 22:25:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:25:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:25:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:25:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:25:46,822 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-29 22:25:47,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:25:47,052 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-29 22:25:47,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:47 BoogieIcfgContainer [2021-08-29 22:25:47,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:25:47,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:25:47,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:25:47,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:25:47,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:25:46" (1/3) ... [2021-08-29 22:25:47,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e488462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:25:47, skipping insertion in model container [2021-08-29 22:25:47,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:46" (2/3) ... [2021-08-29 22:25:47,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e488462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:25:47, skipping insertion in model container [2021-08-29 22:25:47,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:47" (3/3) ... [2021-08-29 22:25:47,060 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2021-08-29 22:25:47,067 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:25:47,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:25:47,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 22:25:47,068 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:25:47,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,103 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,120 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,121 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,123 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,123 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:47,125 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:25:47,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:25:47,174 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 22:25:47,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-29 22:25:47,198 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:25:47,210 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 85 transitions, 185 flow [2021-08-29 22:25:47,213 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 85 transitions, 185 flow [2021-08-29 22:25:47,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2021-08-29 22:25:47,272 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-08-29 22:25:47,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:25:47,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-29 22:25:47,279 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2021-08-29 22:25:49,398 INFO L131 LiptonReduction]: Checked pairs total: 2941 [2021-08-29 22:25:49,398 INFO L133 LiptonReduction]: Total number of compositions: 75 [2021-08-29 22:25:49,403 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2021-08-29 22:25:49,419 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 22:25:49,425 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:49,425 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:49,425 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:25:49,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:49,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1629408921, now seen corresponding path program 1 times [2021-08-29 22:25:49,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:49,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692969843] [2021-08-29 22:25:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:49,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:49,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:49,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692969843] [2021-08-29 22:25:49,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692969843] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:49,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:49,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:25:49,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051310086] [2021-08-29 22:25:49,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:49,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:49,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:49,613 INFO L87 Difference]: Start difference. First operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:49,664 INFO L93 Difference]: Finished difference Result 244 states and 611 transitions. [2021-08-29 22:25:49,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:25:49,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 22:25:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:49,678 INFO L225 Difference]: With dead ends: 244 [2021-08-29 22:25:49,678 INFO L226 Difference]: Without dead ends: 180 [2021-08-29 22:25:49,679 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:49,682 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.99ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:49,683 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 25 Invalid, 45 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 22.99ms Time] [2021-08-29 22:25:49,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-29 22:25:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-08-29 22:25:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.458100558659218) internal successors, (440), 179 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2021-08-29 22:25:49,744 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2021-08-29 22:25:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:49,744 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2021-08-29 22:25:49,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2021-08-29 22:25:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 22:25:49,745 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:49,745 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:49,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:25:49,745 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:25:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:49,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1329339185, now seen corresponding path program 1 times [2021-08-29 22:25:49,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:49,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466005784] [2021-08-29 22:25:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:49,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:49,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:49,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466005784] [2021-08-29 22:25:49,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466005784] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:49,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:49,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:25:49,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246381397] [2021-08-29 22:25:49,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:25:49,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:49,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:25:49,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:49,824 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:49,864 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2021-08-29 22:25:49,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:25:49,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 22:25:49,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:49,865 INFO L225 Difference]: With dead ends: 163 [2021-08-29 22:25:49,865 INFO L226 Difference]: Without dead ends: 126 [2021-08-29 22:25:49,866 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.08ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:49,866 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.02ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:49,867 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 32 Invalid, 59 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 29.02ms Time] [2021-08-29 22:25:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-08-29 22:25:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-08-29 22:25:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 2.224) internal successors, (278), 125 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2021-08-29 22:25:49,875 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2021-08-29 22:25:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:49,875 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2021-08-29 22:25:49,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2021-08-29 22:25:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 22:25:49,877 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:49,877 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:49,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:25:49,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:25:49,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:49,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1520054849, now seen corresponding path program 1 times [2021-08-29 22:25:49,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:49,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884442898] [2021-08-29 22:25:49,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:49,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:49,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:49,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:49,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884442898] [2021-08-29 22:25:49,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884442898] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:49,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:49,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:25:49,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996612259] [2021-08-29 22:25:49,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:49,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:49,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:49,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:49,926 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:49,951 INFO L93 Difference]: Finished difference Result 159 states and 338 transitions. [2021-08-29 22:25:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:25:49,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-29 22:25:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:49,953 INFO L225 Difference]: With dead ends: 159 [2021-08-29 22:25:49,953 INFO L226 Difference]: Without dead ends: 128 [2021-08-29 22:25:49,954 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.59ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:49,956 INFO L928 BasicCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.39ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:49,957 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 43 Invalid, 29 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 17.39ms Time] [2021-08-29 22:25:49,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-08-29 22:25:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-08-29 22:25:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 2.12) internal successors, (265), 125 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 265 transitions. [2021-08-29 22:25:49,965 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 265 transitions. Word has length 14 [2021-08-29 22:25:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:49,965 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 265 transitions. [2021-08-29 22:25:49,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 265 transitions. [2021-08-29 22:25:49,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 22:25:49,966 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:49,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:49,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:25:49,966 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:25:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:49,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1515257537, now seen corresponding path program 1 times [2021-08-29 22:25:49,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:49,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093855532] [2021-08-29 22:25:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:49,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:50,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:50,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093855532] [2021-08-29 22:25:50,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093855532] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:50,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:50,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:25:50,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210753145] [2021-08-29 22:25:50,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:25:50,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:50,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:25:50,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:50,062 INFO L87 Difference]: Start difference. First operand 126 states and 265 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:50,107 INFO L93 Difference]: Finished difference Result 118 states and 247 transitions. [2021-08-29 22:25:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:25:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-29 22:25:50,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:50,108 INFO L225 Difference]: With dead ends: 118 [2021-08-29 22:25:50,108 INFO L226 Difference]: Without dead ends: 54 [2021-08-29 22:25:50,108 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.80ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:25:50,109 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.30ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.65ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:50,109 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 33 Invalid, 67 Unknown, 0 Unchecked, 2.30ms Time], IncrementalHoareTripleChecker [11 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 32.65ms Time] [2021-08-29 22:25:50,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-29 22:25:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-08-29 22:25:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.849056603773585) internal successors, (98), 53 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2021-08-29 22:25:50,112 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 14 [2021-08-29 22:25:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:50,112 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2021-08-29 22:25:50,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2021-08-29 22:25:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 22:25:50,113 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:50,113 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:50,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:25:50,113 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:25:50,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:50,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1723964875, now seen corresponding path program 1 times [2021-08-29 22:25:50,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:50,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806990643] [2021-08-29 22:25:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:50,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:50,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:50,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806990643] [2021-08-29 22:25:50,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806990643] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:50,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:50,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:25:50,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004015775] [2021-08-29 22:25:50,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:50,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:50,158 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:50,175 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2021-08-29 22:25:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:25:50,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 22:25:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:50,177 INFO L225 Difference]: With dead ends: 73 [2021-08-29 22:25:50,177 INFO L226 Difference]: Without dead ends: 36 [2021-08-29 22:25:50,177 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:50,177 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.79ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:50,178 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.24ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 11.79ms Time] [2021-08-29 22:25:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-08-29 22:25:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-08-29 22:25:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6) internal successors, (56), 35 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-08-29 22:25:50,187 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2021-08-29 22:25:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:50,187 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-08-29 22:25:50,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2021-08-29 22:25:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 22:25:50,190 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:50,190 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:50,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 22:25:50,190 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:25:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:50,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1536960851, now seen corresponding path program 2 times [2021-08-29 22:25:50,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:50,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004866288] [2021-08-29 22:25:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:50,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:50,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:50,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004866288] [2021-08-29 22:25:50,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004866288] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:50,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:50,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:25:50,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678775851] [2021-08-29 22:25:50,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:50,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:50,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:50,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:50,253 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:50,264 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2021-08-29 22:25:50,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:25:50,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 22:25:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:50,265 INFO L225 Difference]: With dead ends: 35 [2021-08-29 22:25:50,265 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 22:25:50,265 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.53ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:50,268 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.01ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:50,268 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 8.01ms Time] [2021-08-29 22:25:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 22:25:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 22:25:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 22:25:50,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-08-29 22:25:50,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:50,270 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 22:25:50,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 22:25:50,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 22:25:50,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-08-29 22:25:50,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-08-29 22:25:50,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-08-29 22:25:50,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-08-29 22:25:50,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 22:25:50,275 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:25:50,275 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:25:50,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:25:50 BasicIcfg [2021-08-29 22:25:50,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:25:50,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:25:50,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:25:50,279 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:25:50,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:47" (3/4) ... [2021-08-29 22:25:50,281 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 22:25:50,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-08-29 22:25:50,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-08-29 22:25:50,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-08-29 22:25:50,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-08-29 22:25:50,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 22:25:50,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:25:50,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:25:50,318 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:25:50,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:25:50,318 INFO L158 Benchmark]: Toolchain (without parser) took 3968.31ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 31.1MB in the beginning and 31.3MB in the end (delta: -179.8kB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,319 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:25:50,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.50ms. Allocated memory is still 54.5MB. Free memory was 31.0MB in the beginning and 27.7MB in the end (delta: 3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.67ms. Allocated memory is still 54.5MB. Free memory was 27.7MB in the beginning and 25.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,319 INFO L158 Benchmark]: Boogie Preprocessor took 36.14ms. Allocated memory is still 54.5MB. Free memory was 25.8MB in the beginning and 24.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,319 INFO L158 Benchmark]: RCFGBuilder took 300.93ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 24.4MB in the beginning and 41.9MB in the end (delta: -17.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,320 INFO L158 Benchmark]: TraceAbstraction took 3221.39ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 41.4MB in the beginning and 34.8MB in the end (delta: 6.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,321 INFO L158 Benchmark]: Witness Printer took 39.78ms. Allocated memory is still 81.8MB. Free memory was 34.8MB in the beginning and 31.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 22:25:50,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.50ms. Allocated memory is still 54.5MB. Free memory was 31.0MB in the beginning and 27.7MB in the end (delta: 3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.67ms. Allocated memory is still 54.5MB. Free memory was 27.7MB in the beginning and 25.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.14ms. Allocated memory is still 54.5MB. Free memory was 25.8MB in the beginning and 24.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.93ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 24.4MB in the beginning and 41.9MB in the end (delta: -17.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3221.39ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 41.4MB in the beginning and 34.8MB in the end (delta: 6.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 39.78ms. Allocated memory is still 81.8MB. Free memory was 34.8MB in the beginning and 31.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2185.50ms, 93 PlacesBefore, 31 PlacesAfterwards, 85 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 2941 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1782, positive: 1681, positive conditional: 0, positive unconditional: 1681, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1115, positive: 1065, positive conditional: 0, positive unconditional: 1065, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1115, positive: 1059, positive conditional: 0, positive unconditional: 1059, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1782, positive: 616, positive conditional: 0, positive unconditional: 616, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 1115, unknown conditional: 0, unknown unconditional: 1115] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3110.09ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 10.88ms, AutomataDifference: 255.80ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 2244.83ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 121.85ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 97.51ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 79 mSDtfsCounter, 220 mSolverCounterSat, 4.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 61.27ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 70.69ms AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.73ms SsaConstructionTime, 137.32ms SatisfiabilityAnalysisTime, 254.76ms InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-29 22:25:50,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...