./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/goblint-regression/13-privatized_33-traces-v-matters_true.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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 02:55:44,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 02:55:44,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 02:55:44,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 02:55:44,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 02:55:44,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 02:55:44,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 02:55:44,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 02:55:44,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 02:55:44,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 02:55:44,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 02:55:44,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 02:55:44,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 02:55:44,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 02:55:44,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 02:55:44,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 02:55:44,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 02:55:44,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 02:55:44,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 02:55:44,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 02:55:44,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 02:55:44,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 02:55:44,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 02:55:44,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 02:55:44,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 02:55:44,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 02:55:44,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 02:55:44,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 02:55:44,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 02:55:44,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 02:55:44,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 02:55:44,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 02:55:44,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 02:55:44,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 02:55:44,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 02:55:44,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 02:55:44,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 02:55:44,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 02:55:44,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 02:55:44,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 02:55:44,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 02:55:44,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 02:55:44,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 02:55:44,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 02:55:44,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 02:55:44,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 02:55:44,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 02:55:44,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 02:55:44,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 02:55:44,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 02:55:44,422 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 02:55:44,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 02:55:44,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 02:55:44,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 02:55:44,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:55:44,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 02:55:44,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 02:55:44,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 02:55:44,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 02:55:44,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 02:55:44,425 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 02:55:44,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 02:55:44,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 02:55:44,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 [2021-12-28 02:55:44,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 02:55:44,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 02:55:44,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 02:55:44,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 02:55:44,700 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 02:55:44,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2021-12-28 02:55:44,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1950ae5/ed777bbbde194c78939a64caaa361cc4/FLAGf729810a9 [2021-12-28 02:55:45,141 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 02:55:45,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2021-12-28 02:55:45,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1950ae5/ed777bbbde194c78939a64caaa361cc4/FLAGf729810a9 [2021-12-28 02:55:45,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c1950ae5/ed777bbbde194c78939a64caaa361cc4 [2021-12-28 02:55:45,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 02:55:45,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 02:55:45,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 02:55:45,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 02:55:45,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 02:55:45,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12051035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45, skipping insertion in model container [2021-12-28 02:55:45,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 02:55:45,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 02:55:45,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2021-12-28 02:55:45,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:55:45,758 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 02:55:45,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2021-12-28 02:55:45,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:55:45,832 INFO L208 MainTranslator]: Completed translation [2021-12-28 02:55:45,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45 WrapperNode [2021-12-28 02:55:45,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 02:55:45,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 02:55:45,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 02:55:45,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 02:55:45,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,882 INFO L137 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2021-12-28 02:55:45,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 02:55:45,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 02:55:45,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 02:55:45,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 02:55:45,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 02:55:45,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 02:55:45,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 02:55:45,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 02:55:45,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (1/1) ... [2021-12-28 02:55:45,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:55:45,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 02:55:45,948 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) [2021-12-28 02:55:45,990 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 [2021-12-28 02:55:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 02:55:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-28 02:55:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 02:55:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 02:55:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-28 02:55:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-28 02:55:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 02:55:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 02:55:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 02:55:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 02:55:46,004 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 02:55:46,088 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 02:55:46,090 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 02:55:46,249 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 02:55:46,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 02:55:46,254 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 02:55:46,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:46 BoogieIcfgContainer [2021-12-28 02:55:46,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 02:55:46,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 02:55:46,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 02:55:46,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 02:55:46,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:55:45" (1/3) ... [2021-12-28 02:55:46,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c6ec7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:55:46, skipping insertion in model container [2021-12-28 02:55:46,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:45" (2/3) ... [2021-12-28 02:55:46,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c6ec7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:55:46, skipping insertion in model container [2021-12-28 02:55:46,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:46" (3/3) ... [2021-12-28 02:55:46,279 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2021-12-28 02:55:46,282 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 02:55:46,282 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 02:55:46,283 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 02:55:46,283 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 02:55:46,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,317 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,317 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,318 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,318 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,332 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,337 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:46,339 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-28 02:55:46,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 02:55:46,392 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-28 02:55:46,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 02:55:46,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2021-12-28 02:55:46,444 INFO L129 PetriNetUnfolder]: 1/78 cut-off events. [2021-12-28 02:55:46,445 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:55:46,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2021-12-28 02:55:46,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2021-12-28 02:55:46,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 139 flow [2021-12-28 02:55:46,474 INFO L129 PetriNetUnfolder]: 0/67 cut-off events. [2021-12-28 02:55:46,474 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:55:46,474 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:46,475 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:55:46,475 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:46,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:46,479 INFO L85 PathProgramCache]: Analyzing trace with hash 733907834, now seen corresponding path program 1 times [2021-12-28 02:55:46,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:46,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995125302] [2021-12-28 02:55:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:46,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:46,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:46,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995125302] [2021-12-28 02:55:46,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995125302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:46,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:46,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 02:55:46,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487037559] [2021-12-28 02:55:46,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:46,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 02:55:46,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:46,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 02:55:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 02:55:46,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 79 [2021-12-28 02:55:46,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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) [2021-12-28 02:55:46,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:46,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 79 [2021-12-28 02:55:46,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:46,900 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2021-12-28 02:55:46,900 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:55:46,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 106 events. 2/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 189 event pairs, 0 based on Foata normal form. 3/109 useless extension candidates. Maximal degree in co-relation 86. Up to 9 conditions per place. [2021-12-28 02:55:46,902 INFO L132 encePairwiseOnDemand]: 74/79 looper letters, 6 selfloop transitions, 2 changer transitions 8/76 dead transitions. [2021-12-28 02:55:46,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 76 transitions, 187 flow [2021-12-28 02:55:46,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 02:55:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-28 02:55:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 494 transitions. [2021-12-28 02:55:46,917 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8933092224231465 [2021-12-28 02:55:46,918 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 494 transitions. [2021-12-28 02:55:46,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 494 transitions. [2021-12-28 02:55:46,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:46,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 494 transitions. [2021-12-28 02:55:46,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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) [2021-12-28 02:55:46,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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) [2021-12-28 02:55:46,937 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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) [2021-12-28 02:55:46,938 INFO L186 Difference]: Start difference. First operand has 72 places, 68 transitions, 139 flow. Second operand 7 states and 494 transitions. [2021-12-28 02:55:46,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 76 transitions, 187 flow [2021-12-28 02:55:46,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 76 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 02:55:46,943 INFO L242 Difference]: Finished difference. Result has 82 places, 68 transitions, 154 flow [2021-12-28 02:55:46,944 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=154, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2021-12-28 02:55:46,946 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2021-12-28 02:55:46,946 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 154 flow [2021-12-28 02:55:46,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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) [2021-12-28 02:55:46,947 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:46,953 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:55:46,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 02:55:46,953 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:46,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1624863671, now seen corresponding path program 1 times [2021-12-28 02:55:46,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:46,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669936303] [2021-12-28 02:55:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:46,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:47,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:47,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669936303] [2021-12-28 02:55:47,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669936303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:47,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:47,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 02:55:47,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253391880] [2021-12-28 02:55:47,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:47,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 02:55:47,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 02:55:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 02:55:47,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 79 [2021-12-28 02:55:47,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2021-12-28 02:55:47,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:47,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 79 [2021-12-28 02:55:47,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:47,180 INFO L129 PetriNetUnfolder]: 6/97 cut-off events. [2021-12-28 02:55:47,180 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-28 02:55:47,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 97 events. 6/97 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 2 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2021-12-28 02:55:47,182 INFO L132 encePairwiseOnDemand]: 73/79 looper letters, 18 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2021-12-28 02:55:47,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 69 transitions, 204 flow [2021-12-28 02:55:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 02:55:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 02:55:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 296 transitions. [2021-12-28 02:55:47,183 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7493670886075949 [2021-12-28 02:55:47,184 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 296 transitions. [2021-12-28 02:55:47,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 296 transitions. [2021-12-28 02:55:47,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:47,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 296 transitions. [2021-12-28 02:55:47,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2021-12-28 02:55:47,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-12-28 02:55:47,188 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-12-28 02:55:47,188 INFO L186 Difference]: Start difference. First operand has 82 places, 68 transitions, 154 flow. Second operand 5 states and 296 transitions. [2021-12-28 02:55:47,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 69 transitions, 204 flow [2021-12-28 02:55:47,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 69 transitions, 194 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-12-28 02:55:47,192 INFO L242 Difference]: Finished difference. Result has 77 places, 68 transitions, 156 flow [2021-12-28 02:55:47,192 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=156, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2021-12-28 02:55:47,193 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2021-12-28 02:55:47,193 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 156 flow [2021-12-28 02:55:47,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2021-12-28 02:55:47,194 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:47,194 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:55:47,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 02:55:47,194 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:47,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:47,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1286636087, now seen corresponding path program 2 times [2021-12-28 02:55:47,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:47,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960805023] [2021-12-28 02:55:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:47,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:47,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:47,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960805023] [2021-12-28 02:55:47,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960805023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:47,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:47,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 02:55:47,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201138403] [2021-12-28 02:55:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:47,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 02:55:47,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 02:55:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 02:55:47,327 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 79 [2021-12-28 02:55:47,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2021-12-28 02:55:47,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:47,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 79 [2021-12-28 02:55:47,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:47,393 INFO L129 PetriNetUnfolder]: 2/99 cut-off events. [2021-12-28 02:55:47,394 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-28 02:55:47,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 99 events. 2/99 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 91. Up to 16 conditions per place. [2021-12-28 02:55:47,394 INFO L132 encePairwiseOnDemand]: 73/79 looper letters, 19 selfloop transitions, 6 changer transitions 1/71 dead transitions. [2021-12-28 02:55:47,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 71 transitions, 218 flow [2021-12-28 02:55:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 02:55:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 02:55:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 298 transitions. [2021-12-28 02:55:47,396 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7544303797468355 [2021-12-28 02:55:47,396 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 298 transitions. [2021-12-28 02:55:47,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 298 transitions. [2021-12-28 02:55:47,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:47,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 298 transitions. [2021-12-28 02:55:47,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 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) [2021-12-28 02:55:47,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-12-28 02:55:47,398 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-12-28 02:55:47,398 INFO L186 Difference]: Start difference. First operand has 77 places, 68 transitions, 156 flow. Second operand 5 states and 298 transitions. [2021-12-28 02:55:47,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 71 transitions, 218 flow [2021-12-28 02:55:47,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 209 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-28 02:55:47,400 INFO L242 Difference]: Finished difference. Result has 79 places, 69 transitions, 169 flow [2021-12-28 02:55:47,401 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=79, PETRI_TRANSITIONS=69} [2021-12-28 02:55:47,401 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 7 predicate places. [2021-12-28 02:55:47,401 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 69 transitions, 169 flow [2021-12-28 02:55:47,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2021-12-28 02:55:47,402 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:47,402 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:55:47,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 02:55:47,402 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:47,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1438548197, now seen corresponding path program 1 times [2021-12-28 02:55:47,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469821158] [2021-12-28 02:55:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:47,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:47,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:47,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469821158] [2021-12-28 02:55:47,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469821158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:47,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:47,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 02:55:47,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191608261] [2021-12-28 02:55:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:47,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 02:55:47,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 02:55:47,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-28 02:55:47,511 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 79 [2021-12-28 02:55:47,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 169 flow. Second operand has 8 states, 8 states have (on average 51.375) internal successors, (411), 8 states have internal predecessors, (411), 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) [2021-12-28 02:55:47,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:47,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 79 [2021-12-28 02:55:47,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:47,582 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2021-12-28 02:55:47,582 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-12-28 02:55:47,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 64 events. 1/64 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 1 based on Foata normal form. 1/65 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2021-12-28 02:55:47,583 INFO L132 encePairwiseOnDemand]: 74/79 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2021-12-28 02:55:47,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 58 transitions, 194 flow [2021-12-28 02:55:47,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 02:55:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 02:55:47,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2021-12-28 02:55:47,589 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-12-28 02:55:47,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 316 transitions. [2021-12-28 02:55:47,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 316 transitions. [2021-12-28 02:55:47,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:47,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 316 transitions. [2021-12-28 02:55:47,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.666666666666664) internal successors, (316), 6 states have internal predecessors, (316), 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) [2021-12-28 02:55:47,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 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) [2021-12-28 02:55:47,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 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) [2021-12-28 02:55:47,592 INFO L186 Difference]: Start difference. First operand has 79 places, 69 transitions, 169 flow. Second operand 6 states and 316 transitions. [2021-12-28 02:55:47,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 58 transitions, 194 flow [2021-12-28 02:55:47,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 58 transitions, 186 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-28 02:55:47,594 INFO L242 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2021-12-28 02:55:47,594 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2021-12-28 02:55:47,594 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, -4 predicate places. [2021-12-28 02:55:47,595 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2021-12-28 02:55:47,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 51.375) internal successors, (411), 8 states have internal predecessors, (411), 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) [2021-12-28 02:55:47,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-28 02:55:47,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-28 02:55:47,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 02:55:47,600 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-12-28 02:55:47,602 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-28 02:55:47,602 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 02:55:47,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 02:55:47 BasicIcfg [2021-12-28 02:55:47,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 02:55:47,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 02:55:47,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 02:55:47,605 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 02:55:47,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:46" (3/4) ... [2021-12-28 02:55:47,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 02:55:47,611 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-28 02:55:47,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-12-28 02:55:47,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-28 02:55:47,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 02:55:47,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 02:55:47,635 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 02:55:47,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 02:55:47,635 INFO L158 Benchmark]: Toolchain (without parser) took 2132.18ms. Allocated memory was 65.0MB in the beginning and 104.9MB in the end (delta: 39.8MB). Free memory was 47.2MB in the beginning and 79.5MB in the end (delta: -32.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,636 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 02:55:47,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.08ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 42.0MB in the end (delta: 5.0MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.24ms. Allocated memory is still 65.0MB. Free memory was 42.0MB in the beginning and 39.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,637 INFO L158 Benchmark]: Boogie Preprocessor took 37.88ms. Allocated memory is still 65.0MB. Free memory was 39.8MB in the beginning and 38.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,637 INFO L158 Benchmark]: RCFGBuilder took 333.87ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 38.5MB in the beginning and 66.9MB in the end (delta: -28.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,637 INFO L158 Benchmark]: TraceAbstraction took 1347.17ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 66.4MB in the beginning and 82.5MB in the end (delta: -16.1MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,637 INFO L158 Benchmark]: Witness Printer took 30.40ms. Allocated memory is still 104.9MB. Free memory was 82.5MB in the beginning and 79.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:47,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.08ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 42.0MB in the end (delta: 5.0MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.24ms. Allocated memory is still 65.0MB. Free memory was 42.0MB in the beginning and 39.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.88ms. Allocated memory is still 65.0MB. Free memory was 39.8MB in the beginning and 38.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.87ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 38.5MB in the beginning and 66.9MB in the end (delta: -28.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1347.17ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 66.4MB in the beginning and 82.5MB in the end (delta: -16.1MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Witness Printer took 30.40ms. Allocated memory is still 104.9MB. Free memory was 82.5MB in the beginning and 79.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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 3 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 226 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 18 mSDtfsCounter, 226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=3, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2021-12-28 02:55:47,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE