./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96f16385 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 740b07d8f7e077f103517b1a935019a0d1d4c771 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-96f1638 [2020-12-02 11:43:39,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 11:43:39,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 11:43:39,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 11:43:39,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 11:43:39,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 11:43:39,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 11:43:39,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 11:43:39,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 11:43:39,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 11:43:39,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 11:43:39,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 11:43:39,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 11:43:39,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 11:43:39,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 11:43:39,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 11:43:39,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 11:43:39,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 11:43:39,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 11:43:39,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 11:43:39,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 11:43:39,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 11:43:39,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 11:43:39,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 11:43:39,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 11:43:39,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 11:43:39,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 11:43:39,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 11:43:39,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 11:43:39,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 11:43:39,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 11:43:39,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 11:43:39,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 11:43:39,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 11:43:39,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 11:43:39,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 11:43:39,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 11:43:39,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 11:43:39,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 11:43:39,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 11:43:39,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 11:43:39,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 11:43:39,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 11:43:39,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 11:43:39,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 11:43:39,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 11:43:39,724 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 11:43:39,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 11:43:39,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 11:43:39,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 11:43:39,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 11:43:39,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 11:43:39,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 11:43:39,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 11:43:39,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 11:43:39,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 11:43:39,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 11:43:39,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 11:43:39,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 11:43:39,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 11:43:39,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 11:43:39,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 11:43:39,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 11:43:39,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 11:43:39,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 11:43:39,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 11:43:39,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 11:43:39,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 11:43:39,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 11:43:39,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 11:43:39,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 11:43:39,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 740b07d8f7e077f103517b1a935019a0d1d4c771 [2020-12-02 11:43:40,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 11:43:40,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 11:43:40,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 11:43:40,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 11:43:40,210 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 11:43:40,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2020-12-02 11:43:40,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431ee5950/ad45228f9a2a47da98a52b93d4e14fda/FLAG2459b22d4 [2020-12-02 11:43:41,047 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 11:43:41,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2020-12-02 11:43:41,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431ee5950/ad45228f9a2a47da98a52b93d4e14fda/FLAG2459b22d4 [2020-12-02 11:43:41,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431ee5950/ad45228f9a2a47da98a52b93d4e14fda [2020-12-02 11:43:41,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 11:43:41,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 11:43:41,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 11:43:41,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 11:43:41,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 11:43:41,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:41,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ec0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41, skipping insertion in model container [2020-12-02 11:43:41,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:41,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 11:43:41,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 11:43:41,584 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-02 11:43:41,772 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2020-12-02 11:43:41,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 11:43:41,806 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 11:43:41,837 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-02 11:43:41,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2020-12-02 11:43:41,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 11:43:41,973 INFO L208 MainTranslator]: Completed translation [2020-12-02 11:43:41,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41 WrapperNode [2020-12-02 11:43:41,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 11:43:41,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 11:43:41,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 11:43:41,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 11:43:41,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 11:43:42,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 11:43:42,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 11:43:42,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 11:43:42,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... [2020-12-02 11:43:42,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 11:43:42,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 11:43:42,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 11:43:42,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 11:43:42,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 11:43:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 11:43:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 11:43:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 11:43:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-12-02 11:43:42,173 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-12-02 11:43:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 11:43:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 11:43:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 11:43:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 11:43:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 11:43:42,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 11:43:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-12-02 11:43:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-12-02 11:43:42,177 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-02 11:43:42,853 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 11:43:42,854 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 11:43:42,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:42 BoogieIcfgContainer [2020-12-02 11:43:42,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 11:43:42,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 11:43:42,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 11:43:42,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 11:43:42,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:43:41" (1/3) ... [2020-12-02 11:43:42,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3140eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:43:42, skipping insertion in model container [2020-12-02 11:43:42,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:43:41" (2/3) ... [2020-12-02 11:43:42,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3140eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:43:42, skipping insertion in model container [2020-12-02 11:43:42,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:42" (3/3) ... [2020-12-02 11:43:42,869 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-12-02 11:43:42,888 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 11:43:42,888 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 11:43:42,894 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 11:43:42,896 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 11:43:42,970 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,970 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,971 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,971 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,971 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,972 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,972 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,972 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,973 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,981 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,982 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,982 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,982 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,983 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,983 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,983 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,984 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,984 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,984 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,985 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,986 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,987 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,988 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,989 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,989 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,989 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,990 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,990 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,991 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,992 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,993 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,993 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,995 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,996 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,996 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,996 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,997 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,998 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,998 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,998 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,999 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,999 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:42,999 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,000 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,000 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,000 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,001 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,001 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,002 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,002 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,002 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,003 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,004 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,004 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,004 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,004 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,005 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,005 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,005 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,006 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,006 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,007 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,008 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,008 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,008 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,009 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,009 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,010 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,010 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,010 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,011 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,011 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,011 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,012 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,012 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,012 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,013 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,013 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,014 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,015 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,015 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,015 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,016 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,016 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,016 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,017 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,019 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,020 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,023 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,023 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,024 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,024 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,024 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,025 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,025 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,026 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,027 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,028 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,030 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,031 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,038 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,039 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,040 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,041 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,041 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,042 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,048 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,048 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,048 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,049 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,049 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,049 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,052 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,053 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,054 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,054 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,054 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,055 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,055 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,058 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,058 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,059 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,059 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,059 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,060 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 11:43:43,108 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2020-12-02 11:43:43,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-02 11:43:43,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 11:43:43,168 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 11:43:43,168 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 11:43:43,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 11:43:43,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 11:43:43,168 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 11:43:43,169 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 11:43:43,169 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 11:43:43,192 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 11:43:43,195 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 108 transitions, 284 flow [2020-12-02 11:43:43,199 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 108 transitions, 284 flow [2020-12-02 11:43:43,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 284 flow [2020-12-02 11:43:43,311 INFO L129 PetriNetUnfolder]: 19/142 cut-off events. [2020-12-02 11:43:43,312 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-12-02 11:43:43,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 142 events. 19/142 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 322 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 95. Up to 12 conditions per place. [2020-12-02 11:43:43,346 INFO L116 LiptonReduction]: Number of co-enabled transitions 2808 [2020-12-02 11:43:46,067 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-02 11:43:46,228 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-02 11:43:46,435 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-02 11:43:46,632 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-02 11:43:47,216 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-02 11:43:47,433 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-02 11:43:47,853 WARN L197 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-02 11:43:48,051 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-02 11:43:48,135 INFO L131 LiptonReduction]: Checked pairs total: 19420 [2020-12-02 11:43:48,135 INFO L133 LiptonReduction]: Total number of compositions: 65 [2020-12-02 11:43:48,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 59 transitions, 186 flow [2020-12-02 11:43:48,608 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5381 states. [2020-12-02 11:43:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5381 states. [2020-12-02 11:43:48,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 11:43:48,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:48,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:48,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:48,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1915623268, now seen corresponding path program 1 times [2020-12-02 11:43:48,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:48,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518826872] [2020-12-02 11:43:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:48,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:48,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518826872] [2020-12-02 11:43:48,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:48,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:48,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077937992] [2020-12-02 11:43:48,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 11:43:48,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:49,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 11:43:49,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:49,004 INFO L87 Difference]: Start difference. First operand 5381 states. Second operand 5 states. [2020-12-02 11:43:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:49,375 INFO L93 Difference]: Finished difference Result 12590 states and 42232 transitions. [2020-12-02 11:43:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 11:43:49,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-02 11:43:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:49,510 INFO L225 Difference]: With dead ends: 12590 [2020-12-02 11:43:49,511 INFO L226 Difference]: Without dead ends: 9892 [2020-12-02 11:43:49,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 11:43:49,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2020-12-02 11:43:49,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 5970. [2020-12-02 11:43:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5970 states. [2020-12-02 11:43:50,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 20851 transitions. [2020-12-02 11:43:50,037 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 20851 transitions. Word has length 9 [2020-12-02 11:43:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:50,038 INFO L481 AbstractCegarLoop]: Abstraction has 5970 states and 20851 transitions. [2020-12-02 11:43:50,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 11:43:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 20851 transitions. [2020-12-02 11:43:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 11:43:50,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:50,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:50,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 11:43:50,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:50,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:50,043 INFO L82 PathProgramCache]: Analyzing trace with hash -195792886, now seen corresponding path program 1 times [2020-12-02 11:43:50,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:50,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288658115] [2020-12-02 11:43:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:50,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288658115] [2020-12-02 11:43:50,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:50,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 11:43:50,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968878251] [2020-12-02 11:43:50,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 11:43:50,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:50,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 11:43:50,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:50,128 INFO L87 Difference]: Start difference. First operand 5970 states and 20851 transitions. Second operand 3 states. [2020-12-02 11:43:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:50,226 INFO L93 Difference]: Finished difference Result 5110 states and 15907 transitions. [2020-12-02 11:43:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 11:43:50,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-02 11:43:50,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:50,349 INFO L225 Difference]: With dead ends: 5110 [2020-12-02 11:43:50,349 INFO L226 Difference]: Without dead ends: 5078 [2020-12-02 11:43:50,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 11:43:50,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2020-12-02 11:43:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2020-12-02 11:43:50,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-12-02 11:43:50,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 15825 transitions. [2020-12-02 11:43:50,655 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 15825 transitions. Word has length 11 [2020-12-02 11:43:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:50,656 INFO L481 AbstractCegarLoop]: Abstraction has 5078 states and 15825 transitions. [2020-12-02 11:43:50,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 11:43:50,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 15825 transitions. [2020-12-02 11:43:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 11:43:50,664 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:50,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:50,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 11:43:50,664 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:50,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:50,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1266155686, now seen corresponding path program 2 times [2020-12-02 11:43:50,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:50,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569916982] [2020-12-02 11:43:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:50,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569916982] [2020-12-02 11:43:50,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:50,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 11:43:50,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493335082] [2020-12-02 11:43:50,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 11:43:50,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:50,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 11:43:50,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 11:43:50,802 INFO L87 Difference]: Start difference. First operand 5078 states and 15825 transitions. Second operand 4 states. [2020-12-02 11:43:51,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:51,022 INFO L93 Difference]: Finished difference Result 7034 states and 20696 transitions. [2020-12-02 11:43:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 11:43:51,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-02 11:43:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:51,067 INFO L225 Difference]: With dead ends: 7034 [2020-12-02 11:43:51,067 INFO L226 Difference]: Without dead ends: 6904 [2020-12-02 11:43:51,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6904 states. [2020-12-02 11:43:51,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6904 to 5028. [2020-12-02 11:43:51,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5028 states. [2020-12-02 11:43:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 15627 transitions. [2020-12-02 11:43:51,374 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 15627 transitions. Word has length 11 [2020-12-02 11:43:51,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:51,375 INFO L481 AbstractCegarLoop]: Abstraction has 5028 states and 15627 transitions. [2020-12-02 11:43:51,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 11:43:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 15627 transitions. [2020-12-02 11:43:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 11:43:51,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:51,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:51,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 11:43:51,377 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:51,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2100626013, now seen corresponding path program 1 times [2020-12-02 11:43:51,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:51,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305025805] [2020-12-02 11:43:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:51,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305025805] [2020-12-02 11:43:51,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:51,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:51,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034202335] [2020-12-02 11:43:51,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 11:43:51,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:51,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 11:43:51,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:51,477 INFO L87 Difference]: Start difference. First operand 5028 states and 15627 transitions. Second operand 5 states. [2020-12-02 11:43:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:51,725 INFO L93 Difference]: Finished difference Result 10443 states and 31252 transitions. [2020-12-02 11:43:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 11:43:51,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-02 11:43:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:51,789 INFO L225 Difference]: With dead ends: 10443 [2020-12-02 11:43:51,790 INFO L226 Difference]: Without dead ends: 9661 [2020-12-02 11:43:51,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 11:43:51,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9661 states. [2020-12-02 11:43:52,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9661 to 5905. [2020-12-02 11:43:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5905 states. [2020-12-02 11:43:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5905 states to 5905 states and 18595 transitions. [2020-12-02 11:43:52,116 INFO L78 Accepts]: Start accepts. Automaton has 5905 states and 18595 transitions. Word has length 13 [2020-12-02 11:43:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:52,118 INFO L481 AbstractCegarLoop]: Abstraction has 5905 states and 18595 transitions. [2020-12-02 11:43:52,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 11:43:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5905 states and 18595 transitions. [2020-12-02 11:43:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 11:43:52,121 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:52,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:52,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 11:43:52,122 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:52,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:52,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1395303918, now seen corresponding path program 1 times [2020-12-02 11:43:52,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:52,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732628143] [2020-12-02 11:43:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:52,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732628143] [2020-12-02 11:43:52,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:52,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:52,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359782484] [2020-12-02 11:43:52,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 11:43:52,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:52,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 11:43:52,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:52,190 INFO L87 Difference]: Start difference. First operand 5905 states and 18595 transitions. Second operand 5 states. [2020-12-02 11:43:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:52,278 INFO L93 Difference]: Finished difference Result 3057 states and 7829 transitions. [2020-12-02 11:43:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 11:43:52,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-02 11:43:52,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:52,288 INFO L225 Difference]: With dead ends: 3057 [2020-12-02 11:43:52,289 INFO L226 Difference]: Without dead ends: 3057 [2020-12-02 11:43:52,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 11:43:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2020-12-02 11:43:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 2611. [2020-12-02 11:43:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2611 states. [2020-12-02 11:43:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6739 transitions. [2020-12-02 11:43:52,384 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6739 transitions. Word has length 16 [2020-12-02 11:43:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:52,384 INFO L481 AbstractCegarLoop]: Abstraction has 2611 states and 6739 transitions. [2020-12-02 11:43:52,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 11:43:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6739 transitions. [2020-12-02 11:43:52,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 11:43:52,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:52,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:52,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 11:43:52,387 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:52,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1096397811, now seen corresponding path program 1 times [2020-12-02 11:43:52,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:52,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722141210] [2020-12-02 11:43:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:52,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722141210] [2020-12-02 11:43:52,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:52,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:52,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522908249] [2020-12-02 11:43:52,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 11:43:52,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:52,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 11:43:52,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:52,455 INFO L87 Difference]: Start difference. First operand 2611 states and 6739 transitions. Second operand 5 states. [2020-12-02 11:43:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:52,571 INFO L93 Difference]: Finished difference Result 3334 states and 8400 transitions. [2020-12-02 11:43:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 11:43:52,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-02 11:43:52,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:52,581 INFO L225 Difference]: With dead ends: 3334 [2020-12-02 11:43:52,581 INFO L226 Difference]: Without dead ends: 3189 [2020-12-02 11:43:52,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 11:43:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2020-12-02 11:43:52,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 2338. [2020-12-02 11:43:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2338 states. [2020-12-02 11:43:52,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 5998 transitions. [2020-12-02 11:43:52,658 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 5998 transitions. Word has length 16 [2020-12-02 11:43:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:52,659 INFO L481 AbstractCegarLoop]: Abstraction has 2338 states and 5998 transitions. [2020-12-02 11:43:52,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 11:43:52,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 5998 transitions. [2020-12-02 11:43:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 11:43:52,661 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:52,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:52,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 11:43:52,661 INFO L429 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:52,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:52,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1108420364, now seen corresponding path program 1 times [2020-12-02 11:43:52,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:52,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81645784] [2020-12-02 11:43:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:52,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81645784] [2020-12-02 11:43:52,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:52,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:52,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953131759] [2020-12-02 11:43:52,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 11:43:52,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:52,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 11:43:52,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:52,703 INFO L87 Difference]: Start difference. First operand 2338 states and 5998 transitions. Second operand 5 states. [2020-12-02 11:43:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:52,839 INFO L93 Difference]: Finished difference Result 2977 states and 7534 transitions. [2020-12-02 11:43:52,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 11:43:52,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-02 11:43:52,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:52,848 INFO L225 Difference]: With dead ends: 2977 [2020-12-02 11:43:52,849 INFO L226 Difference]: Without dead ends: 2697 [2020-12-02 11:43:52,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 11:43:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2020-12-02 11:43:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1918. [2020-12-02 11:43:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1918 states. [2020-12-02 11:43:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 4913 transitions. [2020-12-02 11:43:52,974 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 4913 transitions. Word has length 16 [2020-12-02 11:43:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:52,974 INFO L481 AbstractCegarLoop]: Abstraction has 1918 states and 4913 transitions. [2020-12-02 11:43:52,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 11:43:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 4913 transitions. [2020-12-02 11:43:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-02 11:43:52,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:52,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:52,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 11:43:52,978 INFO L429 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:52,979 INFO L82 PathProgramCache]: Analyzing trace with hash 940983690, now seen corresponding path program 1 times [2020-12-02 11:43:52,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:52,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689249862] [2020-12-02 11:43:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:53,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689249862] [2020-12-02 11:43:53,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:53,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 11:43:53,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394821571] [2020-12-02 11:43:53,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 11:43:53,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:53,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 11:43:53,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 11:43:53,035 INFO L87 Difference]: Start difference. First operand 1918 states and 4913 transitions. Second operand 6 states. [2020-12-02 11:43:53,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:53,105 INFO L93 Difference]: Finished difference Result 2310 states and 5767 transitions. [2020-12-02 11:43:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 11:43:53,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-02 11:43:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:53,111 INFO L225 Difference]: With dead ends: 2310 [2020-12-02 11:43:53,112 INFO L226 Difference]: Without dead ends: 1806 [2020-12-02 11:43:53,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-02 11:43:53,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2020-12-02 11:43:53,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1630. [2020-12-02 11:43:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1630 states. [2020-12-02 11:43:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 4025 transitions. [2020-12-02 11:43:53,150 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 4025 transitions. Word has length 21 [2020-12-02 11:43:53,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:53,150 INFO L481 AbstractCegarLoop]: Abstraction has 1630 states and 4025 transitions. [2020-12-02 11:43:53,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 11:43:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 4025 transitions. [2020-12-02 11:43:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-02 11:43:53,153 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 11:43:53,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 11:43:53,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 11:43:53,153 INFO L429 AbstractCegarLoop]: === Iteration 9 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-02 11:43:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 11:43:53,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2040940762, now seen corresponding path program 1 times [2020-12-02 11:43:53,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 11:43:53,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363124906] [2020-12-02 11:43:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 11:43:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 11:43:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 11:43:53,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363124906] [2020-12-02 11:43:53,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 11:43:53,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 11:43:53,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676071101] [2020-12-02 11:43:53,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 11:43:53,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 11:43:53,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 11:43:53,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:53,199 INFO L87 Difference]: Start difference. First operand 1630 states and 4025 transitions. Second operand 5 states. [2020-12-02 11:43:53,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 11:43:53,224 INFO L93 Difference]: Finished difference Result 502 states and 911 transitions. [2020-12-02 11:43:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 11:43:53,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-02 11:43:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 11:43:53,226 INFO L225 Difference]: With dead ends: 502 [2020-12-02 11:43:53,226 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 11:43:53,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 11:43:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 11:43:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 11:43:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 11:43:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 11:43:53,227 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-12-02 11:43:53,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 11:43:53,228 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 11:43:53,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 11:43:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 11:43:53,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 11:43:53,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 11:43:53,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:43:53 BasicIcfg [2020-12-02 11:43:53,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 11:43:53,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 11:43:53,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 11:43:53,233 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 11:43:53,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:43:42" (3/4) ... [2020-12-02 11:43:53,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 11:43:53,244 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2020-12-02 11:43:53,245 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2020-12-02 11:43:53,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-02 11:43:53,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 11:43:53,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 11:43:53,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 11:43:53,288 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 11:43:53,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 11:43:53,290 INFO L168 Benchmark]: Toolchain (without parser) took 11974.68 ms. Allocated memory was 44.0 MB in the beginning and 604.0 MB in the end (delta: 559.9 MB). Free memory was 19.7 MB in the beginning and 391.1 MB in the end (delta: -371.4 MB). Peak memory consumption was 189.4 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:53,290 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 25.9 MB in the beginning and 25.8 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 11:43:53,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.87 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.5 MB in the beginning and 34.6 MB in the end (delta: -15.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:53,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 32.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:53,292 INFO L168 Benchmark]: Boogie Preprocessor took 27.34 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 31.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 11:43:53,293 INFO L168 Benchmark]: RCFGBuilder took 784.64 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 28.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:53,293 INFO L168 Benchmark]: TraceAbstraction took 10371.68 ms. Allocated memory was 56.6 MB in the beginning and 604.0 MB in the end (delta: 547.4 MB). Free memory was 27.8 MB in the beginning and 394.3 MB in the end (delta: -366.4 MB). Peak memory consumption was 181.2 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:53,294 INFO L168 Benchmark]: Witness Printer took 55.83 ms. Allocated memory is still 604.0 MB. Free memory was 394.3 MB in the beginning and 391.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 11:43:53,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 25.9 MB in the beginning and 25.8 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 655.87 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.5 MB in the beginning and 34.6 MB in the end (delta: -15.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 32.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.34 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 31.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 784.64 ms. Allocated memory is still 56.6 MB. Free memory was 31.1 MB in the beginning and 28.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10371.68 ms. Allocated memory was 56.6 MB in the beginning and 604.0 MB in the end (delta: 547.4 MB). Free memory was 27.8 MB in the beginning and 394.3 MB in the end (delta: -366.4 MB). Peak memory consumption was 181.2 MB. Max. memory is 16.1 GB. * Witness Printer took 55.83 ms. Allocated memory is still 604.0 MB. Free memory was 394.3 MB in the beginning and 391.1 MB in the end (delta: 3.1 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 2361 VarBasedMoverChecksPositive, 83 VarBasedMoverChecksNegative, 40 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 882 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.9s, 107 PlacesBefore, 58 PlacesAfterwards, 108 TransitionsBefore, 59 TransitionsAfterwards, 2808 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 19420 MoverChecksTotal - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 864 SDtfs, 1009 SDslu, 1429 SDs, 0 SdLazy, 442 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5970occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 11806 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...