./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel/bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel/bakery-2.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 37eb43704452acda7cf4879bca67f02ca679f494 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-03 12:05:20,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-03 12:05:20,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-03 12:05:20,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-03 12:05:20,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-03 12:05:20,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-03 12:05:20,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-03 12:05:20,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-03 12:05:20,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-03 12:05:20,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-03 12:05:20,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-03 12:05:20,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-03 12:05:20,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-03 12:05:20,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-03 12:05:20,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-03 12:05:20,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-03 12:05:20,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-03 12:05:20,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-03 12:05:20,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-03 12:05:20,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-03 12:05:20,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-03 12:05:20,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-03 12:05:20,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-03 12:05:20,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-03 12:05:20,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-03 12:05:20,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-03 12:05:20,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-03 12:05:20,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-03 12:05:20,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-03 12:05:20,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-03 12:05:20,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-03 12:05:20,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-03 12:05:20,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-03 12:05:20,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-03 12:05:20,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-03 12:05:20,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-03 12:05:20,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-03 12:05:20,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-03 12:05:20,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-03 12:05:20,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-03 12:05:20,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-03 12:05:20,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-03 12:05:21,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-03 12:05:21,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-03 12:05:21,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-03 12:05:21,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-03 12:05:21,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-03 12:05:21,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-03 12:05:21,044 INFO L138 SettingsManager]: * Use SBE=true [2021-10-03 12:05:21,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-03 12:05:21,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-03 12:05:21,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-03 12:05:21,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-03 12:05:21,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-03 12:05:21,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-03 12:05:21,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-03 12:05:21,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-03 12:05:21,047 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-03 12:05:21,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-03 12:05:21,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-03 12:05:21,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-03 12:05:21,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-03 12:05:21,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-03 12:05:21,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-03 12:05:21,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 12:05:21,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-03 12:05:21,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-03 12:05:21,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-03 12:05:21,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-03 12:05:21,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-03 12:05:21,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-03 12:05:21,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-03 12:05:21,060 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37eb43704452acda7cf4879bca67f02ca679f494 [2021-10-03 12:05:21,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-03 12:05:21,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-03 12:05:21,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-03 12:05:21,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-03 12:05:21,443 INFO L275 PluginConnector]: CDTParser initialized [2021-10-03 12:05:21,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/bakery-2.wvr.c [2021-10-03 12:05:21,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/59c1df97f/4636339ac405413394bce3df2a2c22a9/FLAG38d54cce5 [2021-10-03 12:05:22,166 INFO L306 CDTParser]: Found 1 translation units. [2021-10-03 12:05:22,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bakery-2.wvr.c [2021-10-03 12:05:22,168 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 12:05:22,168 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 12:05:22,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/59c1df97f/4636339ac405413394bce3df2a2c22a9/FLAG38d54cce5 [2021-10-03 12:05:22,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/59c1df97f/4636339ac405413394bce3df2a2c22a9 [2021-10-03 12:05:22,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-03 12:05:22,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-03 12:05:22,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-03 12:05:22,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-03 12:05:22,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-03 12:05:22,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5104999d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22, skipping insertion in model container [2021-10-03 12:05:22,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-03 12:05:22,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-03 12:05:22,683 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 12:05:22,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bakery-2.wvr.c[1482,1495] [2021-10-03 12:05:22,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 12:05:22,745 INFO L203 MainTranslator]: Completed pre-run [2021-10-03 12:05:22,757 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 12:05:22,770 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bakery-2.wvr.c[1482,1495] [2021-10-03 12:05:22,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 12:05:22,786 INFO L208 MainTranslator]: Completed translation [2021-10-03 12:05:22,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22 WrapperNode [2021-10-03 12:05:22,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-03 12:05:22,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-03 12:05:22,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-03 12:05:22,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-03 12:05:22,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-03 12:05:22,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-03 12:05:22,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-03 12:05:22,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-03 12:05:22,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-03 12:05:22,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-03 12:05:22,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-03 12:05:22,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-03 12:05:22,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (1/1) ... [2021-10-03 12:05:22,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 12:05:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-03 12:05:22,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-03 12:05:22,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-03 12:05:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-03 12:05:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-03 12:05:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-03 12:05:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-03 12:05:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-03 12:05:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-03 12:05:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-03 12:05:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-03 12:05:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-03 12:05:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-03 12:05:22,965 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-03 12:05:23,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-03 12:05:23,298 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-03 12:05:23,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:05:23 BoogieIcfgContainer [2021-10-03 12:05:23,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-03 12:05:23,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-03 12:05:23,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-03 12:05:23,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-03 12:05:23,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 12:05:22" (1/3) ... [2021-10-03 12:05:23,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c97bc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:05:23, skipping insertion in model container [2021-10-03 12:05:23,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:05:22" (2/3) ... [2021-10-03 12:05:23,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c97bc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:05:23, skipping insertion in model container [2021-10-03 12:05:23,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:05:23" (3/3) ... [2021-10-03 12:05:23,311 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-2.wvr.c [2021-10-03 12:05:23,317 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-03 12:05:23,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-03 12:05:23,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-03 12:05:23,318 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-03 12:05:23,368 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,373 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,373 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,374 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,374 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,374 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,374 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,375 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,375 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,375 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,375 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,376 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,376 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,376 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,377 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,377 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,377 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,377 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,378 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,385 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,385 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,385 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,385 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,386 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,386 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,387 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,387 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,387 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,388 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,388 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,388 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,389 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,389 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,390 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,390 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,391 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,391 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,391 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,391 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,392 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,399 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 12:05:23,415 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-03 12:05:23,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-03 12:05:23,498 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 [2021-10-03 12:05:23,498 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-03 12:05:23,526 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-03 12:05:23,540 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 127 transitions, 270 flow [2021-10-03 12:05:23,543 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 127 transitions, 270 flow [2021-10-03 12:05:23,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 127 transitions, 270 flow [2021-10-03 12:05:23,671 INFO L129 PetriNetUnfolder]: 8/125 cut-off events. [2021-10-03 12:05:23,671 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-03 12:05:23,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 125 events. 8/125 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2021-10-03 12:05:23,687 INFO L116 LiptonReduction]: Number of co-enabled transitions 2408 [2021-10-03 12:05:26,674 INFO L131 LiptonReduction]: Checked pairs total: 8341 [2021-10-03 12:05:26,674 INFO L133 LiptonReduction]: Total number of compositions: 115 [2021-10-03 12:05:26,690 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 92 flow [2021-10-03 12:05:26,735 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 314 states, 313 states have (on average 2.65814696485623) internal successors, (832), 313 states have internal predecessors, (832), 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) [2021-10-03 12:05:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 314 states, 313 states have (on average 2.65814696485623) internal successors, (832), 313 states have internal predecessors, (832), 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) [2021-10-03 12:05:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-03 12:05:26,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:26,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:26,757 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:26,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:26,763 INFO L82 PathProgramCache]: Analyzing trace with hash -643909506, now seen corresponding path program 1 times [2021-10-03 12:05:26,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:26,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290179411] [2021-10-03 12:05:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:26,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:26,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:26,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290179411] [2021-10-03 12:05:26,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290179411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:26,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:26,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-03 12:05:26,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411141793] [2021-10-03 12:05:26,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-03 12:05:26,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:27,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-03 12:05:27,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-03 12:05:27,004 INFO L87 Difference]: Start difference. First operand has 314 states, 313 states have (on average 2.65814696485623) internal successors, (832), 313 states have internal predecessors, (832), 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 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2021-10-03 12:05:27,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:27,036 INFO L93 Difference]: Finished difference Result 314 states and 756 transitions. [2021-10-03 12:05:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-03 12:05:27,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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 [2021-10-03 12:05:27,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:27,059 INFO L225 Difference]: With dead ends: 314 [2021-10-03 12:05:27,059 INFO L226 Difference]: Without dead ends: 314 [2021-10-03 12:05:27,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-03 12:05:27,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-10-03 12:05:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-10-03 12:05:27,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.415335463258786) internal successors, (756), 313 states have internal predecessors, (756), 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) [2021-10-03 12:05:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 756 transitions. [2021-10-03 12:05:27,176 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 756 transitions. Word has length 17 [2021-10-03 12:05:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:27,178 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 756 transitions. [2021-10-03 12:05:27,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2021-10-03 12:05:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 756 transitions. [2021-10-03 12:05:27,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:27,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:27,192 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:27,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-03 12:05:27,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:27,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:27,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1750185449, now seen corresponding path program 1 times [2021-10-03 12:05:27,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:27,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166283286] [2021-10-03 12:05:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:27,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:27,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:27,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166283286] [2021-10-03 12:05:27,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166283286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:27,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:27,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-03 12:05:27,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407661050] [2021-10-03 12:05:27,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-03 12:05:27,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:27,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-03 12:05:27,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-03 12:05:27,504 INFO L87 Difference]: Start difference. First operand 314 states and 756 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-10-03 12:05:27,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:27,608 INFO L93 Difference]: Finished difference Result 365 states and 835 transitions. [2021-10-03 12:05:27,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-03 12:05:27,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:27,612 INFO L225 Difference]: With dead ends: 365 [2021-10-03 12:05:27,612 INFO L226 Difference]: Without dead ends: 312 [2021-10-03 12:05:27,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 69.3ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-03 12:05:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-03 12:05:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 278. [2021-10-03 12:05:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 2.3898916967509027) internal successors, (662), 277 states have internal predecessors, (662), 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) [2021-10-03 12:05:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 662 transitions. [2021-10-03 12:05:27,631 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 662 transitions. Word has length 26 [2021-10-03 12:05:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:27,631 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 662 transitions. [2021-10-03 12:05:27,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-10-03 12:05:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 662 transitions. [2021-10-03 12:05:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:27,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:27,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:27,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-03 12:05:27,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:27,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2060640891, now seen corresponding path program 2 times [2021-10-03 12:05:27,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:27,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091928663] [2021-10-03 12:05:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:27,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:27,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:27,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091928663] [2021-10-03 12:05:27,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091928663] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:27,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:27,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 12:05:27,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813430596] [2021-10-03 12:05:27,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-03 12:05:27,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:27,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-03 12:05:27,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-03 12:05:27,714 INFO L87 Difference]: Start difference. First operand 278 states and 662 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-03 12:05:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:27,767 INFO L93 Difference]: Finished difference Result 410 states and 933 transitions. [2021-10-03 12:05:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-03 12:05:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:27,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:27,771 INFO L225 Difference]: With dead ends: 410 [2021-10-03 12:05:27,771 INFO L226 Difference]: Without dead ends: 410 [2021-10-03 12:05:27,772 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-03 12:05:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-03 12:05:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 254. [2021-10-03 12:05:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 2.292490118577075) internal successors, (580), 253 states have internal predecessors, (580), 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) [2021-10-03 12:05:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 580 transitions. [2021-10-03 12:05:27,783 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 580 transitions. Word has length 26 [2021-10-03 12:05:27,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:27,784 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 580 transitions. [2021-10-03 12:05:27,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-03 12:05:27,784 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 580 transitions. [2021-10-03 12:05:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:27,785 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:27,785 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:27,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-03 12:05:27,786 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:27,787 INFO L82 PathProgramCache]: Analyzing trace with hash -120184283, now seen corresponding path program 3 times [2021-10-03 12:05:27,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:27,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088670889] [2021-10-03 12:05:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:27,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:27,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:27,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088670889] [2021-10-03 12:05:27,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088670889] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:27,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:27,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 12:05:27,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827254365] [2021-10-03 12:05:27,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-03 12:05:27,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:27,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-03 12:05:27,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-03 12:05:27,889 INFO L87 Difference]: Start difference. First operand 254 states and 580 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-03 12:05:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:27,910 INFO L93 Difference]: Finished difference Result 278 states and 613 transitions. [2021-10-03 12:05:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 12:05:27,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:27,913 INFO L225 Difference]: With dead ends: 278 [2021-10-03 12:05:27,913 INFO L226 Difference]: Without dead ends: 254 [2021-10-03 12:05:27,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-03 12:05:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-03 12:05:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-10-03 12:05:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 2.2529644268774702) internal successors, (570), 253 states have internal predecessors, (570), 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) [2021-10-03 12:05:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 570 transitions. [2021-10-03 12:05:27,922 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 570 transitions. Word has length 26 [2021-10-03 12:05:27,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:27,923 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 570 transitions. [2021-10-03 12:05:27,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-03 12:05:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 570 transitions. [2021-10-03 12:05:27,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:27,924 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:27,925 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:27,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-03 12:05:27,925 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:27,926 INFO L82 PathProgramCache]: Analyzing trace with hash -981100093, now seen corresponding path program 4 times [2021-10-03 12:05:27,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:27,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779796177] [2021-10-03 12:05:27,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:27,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:28,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:28,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779796177] [2021-10-03 12:05:28,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779796177] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:28,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:28,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 12:05:28,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739957058] [2021-10-03 12:05:28,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 12:05:28,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 12:05:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-03 12:05:28,122 INFO L87 Difference]: Start difference. First operand 254 states and 570 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-03 12:05:28,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:28,374 INFO L93 Difference]: Finished difference Result 412 states and 893 transitions. [2021-10-03 12:05:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-03 12:05:28,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:28,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:28,378 INFO L225 Difference]: With dead ends: 412 [2021-10-03 12:05:28,378 INFO L226 Difference]: Without dead ends: 412 [2021-10-03 12:05:28,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 144.5ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-03 12:05:28,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-03 12:05:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 278. [2021-10-03 12:05:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 2.1768953068592056) internal successors, (603), 277 states have internal predecessors, (603), 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) [2021-10-03 12:05:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 603 transitions. [2021-10-03 12:05:28,390 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 603 transitions. Word has length 26 [2021-10-03 12:05:28,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:28,391 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 603 transitions. [2021-10-03 12:05:28,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-03 12:05:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 603 transitions. [2021-10-03 12:05:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:28,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:28,393 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:28,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-03 12:05:28,394 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:28,395 INFO L82 PathProgramCache]: Analyzing trace with hash 103630301, now seen corresponding path program 5 times [2021-10-03 12:05:28,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:28,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495783957] [2021-10-03 12:05:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:28,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:28,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:28,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495783957] [2021-10-03 12:05:28,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495783957] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:28,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:28,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-03 12:05:28,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263139605] [2021-10-03 12:05:28,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-03 12:05:28,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-03 12:05:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-03 12:05:28,492 INFO L87 Difference]: Start difference. First operand 278 states and 603 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-10-03 12:05:28,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:28,558 INFO L93 Difference]: Finished difference Result 311 states and 654 transitions. [2021-10-03 12:05:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-03 12:05:28,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:28,560 INFO L225 Difference]: With dead ends: 311 [2021-10-03 12:05:28,561 INFO L226 Difference]: Without dead ends: 206 [2021-10-03 12:05:28,561 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.7ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-03 12:05:28,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-03 12:05:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 192. [2021-10-03 12:05:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 2.136125654450262) internal successors, (408), 191 states have internal predecessors, (408), 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) [2021-10-03 12:05:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 408 transitions. [2021-10-03 12:05:28,568 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 408 transitions. Word has length 26 [2021-10-03 12:05:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:28,569 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 408 transitions. [2021-10-03 12:05:28,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-10-03 12:05:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 408 transitions. [2021-10-03 12:05:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:28,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:28,571 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:28,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-03 12:05:28,571 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:28,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:28,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1014370821, now seen corresponding path program 6 times [2021-10-03 12:05:28,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:28,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074328703] [2021-10-03 12:05:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:28,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:28,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:28,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074328703] [2021-10-03 12:05:28,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074328703] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:28,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:28,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-03 12:05:28,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022825380] [2021-10-03 12:05:28,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-03 12:05:28,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:28,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-03 12:05:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-03 12:05:28,628 INFO L87 Difference]: Start difference. First operand 192 states and 408 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-03 12:05:28,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:28,638 INFO L93 Difference]: Finished difference Result 192 states and 400 transitions. [2021-10-03 12:05:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-03 12:05:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:28,642 INFO L225 Difference]: With dead ends: 192 [2021-10-03 12:05:28,642 INFO L226 Difference]: Without dead ends: 192 [2021-10-03 12:05:28,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-03 12:05:28,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-03 12:05:28,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2021-10-03 12:05:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 2.094240837696335) internal successors, (400), 191 states have internal predecessors, (400), 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) [2021-10-03 12:05:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 400 transitions. [2021-10-03 12:05:28,651 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 400 transitions. Word has length 26 [2021-10-03 12:05:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:28,652 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 400 transitions. [2021-10-03 12:05:28,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-03 12:05:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 400 transitions. [2021-10-03 12:05:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:28,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:28,654 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:28,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-03 12:05:28,654 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:28,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1625489575, now seen corresponding path program 7 times [2021-10-03 12:05:28,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:28,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898497120] [2021-10-03 12:05:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:28,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:28,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:28,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898497120] [2021-10-03 12:05:28,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898497120] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:28,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:28,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 12:05:28,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884925505] [2021-10-03 12:05:28,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 12:05:28,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 12:05:28,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-03 12:05:28,880 INFO L87 Difference]: Start difference. First operand 192 states and 400 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-03 12:05:29,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:29,069 INFO L93 Difference]: Finished difference Result 310 states and 623 transitions. [2021-10-03 12:05:29,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-03 12:05:29,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:29,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:29,072 INFO L225 Difference]: With dead ends: 310 [2021-10-03 12:05:29,072 INFO L226 Difference]: Without dead ends: 278 [2021-10-03 12:05:29,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 104.0ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-03 12:05:29,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-03 12:05:29,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 180. [2021-10-03 12:05:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.022346368715084) internal successors, (362), 179 states have internal predecessors, (362), 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) [2021-10-03 12:05:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 362 transitions. [2021-10-03 12:05:29,079 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 362 transitions. Word has length 26 [2021-10-03 12:05:29,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:29,079 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 362 transitions. [2021-10-03 12:05:29,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-03 12:05:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 362 transitions. [2021-10-03 12:05:29,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-03 12:05:29,080 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:29,081 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:29,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-03 12:05:29,081 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:29,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:29,082 INFO L82 PathProgramCache]: Analyzing trace with hash -218097683, now seen corresponding path program 8 times [2021-10-03 12:05:29,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:29,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443744874] [2021-10-03 12:05:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:29,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:29,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:29,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443744874] [2021-10-03 12:05:29,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443744874] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:29,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:29,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 12:05:29,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179921969] [2021-10-03 12:05:29,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 12:05:29,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 12:05:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-03 12:05:29,276 INFO L87 Difference]: Start difference. First operand 180 states and 362 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-03 12:05:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:29,445 INFO L93 Difference]: Finished difference Result 264 states and 522 transitions. [2021-10-03 12:05:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-03 12:05:29,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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 26 [2021-10-03 12:05:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:29,447 INFO L225 Difference]: With dead ends: 264 [2021-10-03 12:05:29,447 INFO L226 Difference]: Without dead ends: 232 [2021-10-03 12:05:29,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 120.3ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-03 12:05:29,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-03 12:05:29,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 178. [2021-10-03 12:05:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 2.005649717514124) internal successors, (355), 177 states have internal predecessors, (355), 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) [2021-10-03 12:05:29,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 355 transitions. [2021-10-03 12:05:29,455 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 355 transitions. Word has length 26 [2021-10-03 12:05:29,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:29,455 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 355 transitions. [2021-10-03 12:05:29,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-03 12:05:29,456 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 355 transitions. [2021-10-03 12:05:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 12:05:29,457 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:29,457 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:29,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-03 12:05:29,458 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:29,458 INFO L82 PathProgramCache]: Analyzing trace with hash -218085146, now seen corresponding path program 1 times [2021-10-03 12:05:29,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:29,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024630646] [2021-10-03 12:05:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:29,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:29,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:29,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024630646] [2021-10-03 12:05:29,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024630646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:29,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:29,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-03 12:05:29,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438156738] [2021-10-03 12:05:29,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-03 12:05:29,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:29,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-03 12:05:29,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-03 12:05:29,534 INFO L87 Difference]: Start difference. First operand 178 states and 355 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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) [2021-10-03 12:05:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:29,610 INFO L93 Difference]: Finished difference Result 204 states and 404 transitions. [2021-10-03 12:05:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-03 12:05:29,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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 27 [2021-10-03 12:05:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:29,612 INFO L225 Difference]: With dead ends: 204 [2021-10-03 12:05:29,612 INFO L226 Difference]: Without dead ends: 126 [2021-10-03 12:05:29,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 38.8ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-03 12:05:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-03 12:05:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-03 12:05:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.96) internal successors, (245), 125 states have internal predecessors, (245), 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) [2021-10-03 12:05:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 245 transitions. [2021-10-03 12:05:29,616 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 245 transitions. Word has length 27 [2021-10-03 12:05:29,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:29,617 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 245 transitions. [2021-10-03 12:05:29,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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) [2021-10-03 12:05:29,617 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 245 transitions. [2021-10-03 12:05:29,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-03 12:05:29,618 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 12:05:29,618 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 12:05:29,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-03 12:05:29,618 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 12:05:29,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 12:05:29,619 INFO L82 PathProgramCache]: Analyzing trace with hash -639683509, now seen corresponding path program 1 times [2021-10-03 12:05:29,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 12:05:29,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842767086] [2021-10-03 12:05:29,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 12:05:29,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 12:05:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 12:05:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 12:05:29,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 12:05:29,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842767086] [2021-10-03 12:05:29,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842767086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 12:05:29,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 12:05:29,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-03 12:05:29,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309246087] [2021-10-03 12:05:29,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-03 12:05:29,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 12:05:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-03 12:05:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-03 12:05:29,707 INFO L87 Difference]: Start difference. First operand 126 states and 245 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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) [2021-10-03 12:05:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 12:05:29,804 INFO L93 Difference]: Finished difference Result 94 states and 183 transitions. [2021-10-03 12:05:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-03 12:05:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2021-10-03 12:05:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 12:05:29,805 INFO L225 Difference]: With dead ends: 94 [2021-10-03 12:05:29,805 INFO L226 Difference]: Without dead ends: 0 [2021-10-03 12:05:29,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 61.7ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-03 12:05:29,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-03 12:05:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-03 12:05:29,806 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) [2021-10-03 12:05:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-03 12:05:29,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-10-03 12:05:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 12:05:29,807 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-03 12:05:29,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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) [2021-10-03 12:05:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-03 12:05:29,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-03 12:05:29,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-03 12:05:29,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-03 12:05:29,811 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-03 12:05:29,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-03 12:05:29,815 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-03 12:05:29,815 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-03 12:05:29,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 12:05:29 BasicIcfg [2021-10-03 12:05:29,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-03 12:05:29,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-03 12:05:29,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-03 12:05:29,818 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-03 12:05:29,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:05:23" (3/4) ... [2021-10-03 12:05:29,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-03 12:05:29,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-03 12:05:29,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-03 12:05:29,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-03 12:05:29,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 12:05:29,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 12:05:29,871 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-03 12:05:29,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-03 12:05:29,873 INFO L168 Benchmark]: Toolchain (without parser) took 7357.10 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 26.6 MB in the beginning and 59.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-03 12:05:29,873 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 18.9 MB in the beginning and 18.8 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 12:05:29,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.82 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 27.2 MB in the end (delta: -822.5 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-03 12:05:29,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.11 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 25.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 12:05:29,875 INFO L168 Benchmark]: Boogie Preprocessor took 24.03 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 24.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 12:05:29,875 INFO L168 Benchmark]: RCFGBuilder took 444.69 ms. Allocated memory is still 50.3 MB. Free memory was 24.1 MB in the beginning and 23.6 MB in the end (delta: 440.9 kB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-10-03 12:05:29,876 INFO L168 Benchmark]: TraceAbstraction took 6514.39 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 23.1 MB in the beginning and 62.1 MB in the end (delta: -39.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 12:05:29,876 INFO L168 Benchmark]: Witness Printer took 53.09 ms. Allocated memory is still 88.1 MB. Free memory was 61.3 MB in the beginning and 59.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 12:05:29,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 18.9 MB in the beginning and 18.8 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.82 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 27.2 MB in the end (delta: -822.5 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.11 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 25.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.03 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 24.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 444.69 ms. Allocated memory is still 50.3 MB. Free memory was 24.1 MB in the beginning and 23.6 MB in the end (delta: 440.9 kB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6514.39 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 23.1 MB in the beginning and 62.1 MB in the end (delta: -39.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 53.09 ms. Allocated memory is still 88.1 MB. Free memory was 61.3 MB in the beginning and 59.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3131.5ms, 126 PlacesBefore, 40 PlacesAfterwards, 127 TransitionsBefore, 38 TransitionsAfterwards, 2408 CoEnabledTransitionPairs, 8 FixpointIterations, 51 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 115 TotalNumberOfCompositions, 8341 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4133, positive: 3825, positive conditional: 0, positive unconditional: 3825, negative: 308, negative conditional: 0, negative unconditional: 308, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1904, positive: 1815, positive conditional: 0, positive unconditional: 1815, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1904, positive: 1780, positive conditional: 0, positive unconditional: 1780, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 124, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4133, positive: 2010, positive conditional: 0, positive unconditional: 2010, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 1904, unknown conditional: 0, unknown unconditional: 1904] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 238, Positive conditional cache size: 0, Positive unconditional cache size: 238, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 73]: 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 5 procedures, 174 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6339.8ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 42.4ms, AutomataDifference: 1163.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3236.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 505 SDtfs, 526 SDslu, 1214 SDs, 0 SdLazy, 736 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 491.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 616.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 179.7ms AutomataMinimizationTime, 11 MinimizatonAttempts, 490 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 39.9ms SsaConstructionTime, 381.1ms SatisfiabilityAnalysisTime, 1021.4ms InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 269 ConstructedInterpolants, 0 QuantifiedInterpolants, 1121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2021-10-03 12:05:29,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...