./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a54b041d30af5a4aa41dda48f56934958cdfaa7f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-04 18:39:16,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-04 18:39:16,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-04 18:39:16,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-04 18:39:16,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-04 18:39:16,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-04 18:39:16,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-04 18:39:16,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-04 18:39:16,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-04 18:39:16,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-04 18:39:16,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-04 18:39:16,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-04 18:39:16,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-04 18:39:16,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-04 18:39:16,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-04 18:39:16,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-04 18:39:16,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-04 18:39:16,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-04 18:39:16,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-04 18:39:16,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-04 18:39:17,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-04 18:39:17,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-04 18:39:17,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-04 18:39:17,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-04 18:39:17,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-04 18:39:17,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-04 18:39:17,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-04 18:39:17,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-04 18:39:17,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-04 18:39:17,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-04 18:39:17,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-04 18:39:17,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-04 18:39:17,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-04 18:39:17,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-04 18:39:17,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-04 18:39:17,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-04 18:39:17,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-04 18:39:17,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-04 18:39:17,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-04 18:39:17,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-04 18:39:17,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-04 18:39:17,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-04 18:39:17,071 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-04 18:39:17,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-04 18:39:17,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-04 18:39:17,072 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-04 18:39:17,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-04 18:39:17,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-04 18:39:17,076 INFO L138 SettingsManager]: * Use SBE=true [2021-10-04 18:39:17,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-04 18:39:17,076 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-04 18:39:17,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-04 18:39:17,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-04 18:39:17,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-04 18:39:17,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-04 18:39:17,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-04 18:39:17,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-04 18:39:17,079 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-04 18:39:17,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-04 18:39:17,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-04 18:39:17,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-04 18:39:17,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-04 18:39:17,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-04 18:39:17,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-04 18:39:17,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:39:17,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-04 18:39:17,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-04 18:39:17,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-04 18:39:17,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-04 18:39:17,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-04 18:39:17,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-04 18:39:17,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-04 18:39:17,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a54b041d30af5a4aa41dda48f56934958cdfaa7f [2021-10-04 18:39:17,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-04 18:39:17,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-04 18:39:17,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-04 18:39:17,581 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-04 18:39:17,581 INFO L275 PluginConnector]: CDTParser initialized [2021-10-04 18:39:17,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c [2021-10-04 18:39:17,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28276f06c/7f02991510e3467fb0e0b7046c4ee30c/FLAG36025fc5e [2021-10-04 18:39:18,275 INFO L306 CDTParser]: Found 1 translation units. [2021-10-04 18:39:18,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c [2021-10-04 18:39:18,276 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:39:18,276 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:39:18,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28276f06c/7f02991510e3467fb0e0b7046c4ee30c/FLAG36025fc5e [2021-10-04 18:39:18,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28276f06c/7f02991510e3467fb0e0b7046c4ee30c [2021-10-04 18:39:18,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-04 18:39:18,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-04 18:39:18,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-04 18:39:18,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-04 18:39:18,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-04 18:39:18,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:18,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7b26d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18, skipping insertion in model container [2021-10-04 18:39:18,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:18,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-04 18:39:18,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-04 18:39:18,841 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:39:18,891 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c[1413,1426] [2021-10-04 18:39:18,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:39:18,908 INFO L203 MainTranslator]: Completed pre-run [2021-10-04 18:39:18,925 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:39:18,938 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c[1413,1426] [2021-10-04 18:39:18,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:39:18,960 INFO L208 MainTranslator]: Completed translation [2021-10-04 18:39:18,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18 WrapperNode [2021-10-04 18:39:18,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-04 18:39:18,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-04 18:39:18,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-04 18:39:18,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-04 18:39:18,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:18,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-04 18:39:19,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-04 18:39:19,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-04 18:39:19,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-04 18:39:19,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-04 18:39:19,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-04 18:39:19,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-04 18:39:19,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-04 18:39:19,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (1/1) ... [2021-10-04 18:39:19,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:39:19,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 18:39:19,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-04 18:39:19,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-04 18:39:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-04 18:39:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-04 18:39:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-04 18:39:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-04 18:39:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-04 18:39:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-04 18:39:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-04 18:39:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-04 18:39:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-04 18:39:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-04 18:39:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-04 18:39:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-04 18:39:19,180 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-04 18:39:19,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-04 18:39:19,645 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-04 18:39:19,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:19 BoogieIcfgContainer [2021-10-04 18:39:19,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-04 18:39:19,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-04 18:39:19,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-04 18:39:19,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-04 18:39:19,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 06:39:18" (1/3) ... [2021-10-04 18:39:19,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171c35d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:39:19, skipping insertion in model container [2021-10-04 18:39:19,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:18" (2/3) ... [2021-10-04 18:39:19,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171c35d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:39:19, skipping insertion in model container [2021-10-04 18:39:19,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:19" (3/3) ... [2021-10-04 18:39:19,663 INFO L111 eAbstractionObserver]: Analyzing ICFG simpl-str-trans.wvr.c [2021-10-04 18:39:19,670 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-04 18:39:19,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-04 18:39:19,671 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-04 18:39:19,671 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-04 18:39:19,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,771 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,788 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,788 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,789 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,789 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,790 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,790 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,790 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,791 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,791 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,791 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,792 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,792 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,794 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,794 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,797 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,812 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,817 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,820 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,821 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,821 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,822 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:39:19,853 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-04 18:39:19,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-04 18:39:19,917 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-04 18:39:19,918 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-04 18:39:19,936 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-04 18:39:19,949 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 130 transitions, 284 flow [2021-10-04 18:39:19,953 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 130 transitions, 284 flow [2021-10-04 18:39:19,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 130 transitions, 284 flow [2021-10-04 18:39:20,031 INFO L129 PetriNetUnfolder]: 10/127 cut-off events. [2021-10-04 18:39:20,033 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-04 18:39:20,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 10/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 162 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2021-10-04 18:39:20,060 INFO L116 LiptonReduction]: Number of co-enabled transitions 2958 [2021-10-04 18:39:24,685 INFO L131 LiptonReduction]: Checked pairs total: 2947 [2021-10-04 18:39:24,686 INFO L133 LiptonReduction]: Total number of compositions: 136 [2021-10-04 18:39:24,696 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-10-04 18:39:24,711 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:24,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:24,722 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:24,723 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:24,724 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:24,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1011445108, now seen corresponding path program 1 times [2021-10-04 18:39:24,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:24,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598228706] [2021-10-04 18:39:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:24,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:25,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:25,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598228706] [2021-10-04 18:39:25,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598228706] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:25,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:25,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:25,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672724740] [2021-10-04 18:39:25,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:25,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:25,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:25,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:25,370 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:25,555 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions. [2021-10-04 18:39:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:39:25,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-04 18:39:25,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:25,568 INFO L225 Difference]: With dead ends: 67 [2021-10-04 18:39:25,568 INFO L226 Difference]: Without dead ends: 52 [2021-10-04 18:39:25,570 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-04 18:39:25,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-04 18:39:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-10-04 18:39:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 43 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 74 transitions. [2021-10-04 18:39:25,612 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 74 transitions. Word has length 16 [2021-10-04 18:39:25,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:25,612 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 74 transitions. [2021-10-04 18:39:25,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2021-10-04 18:39:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:25,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:25,615 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:25,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-04 18:39:25,615 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:25,616 INFO L82 PathProgramCache]: Analyzing trace with hash 409036322, now seen corresponding path program 2 times [2021-10-04 18:39:25,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:25,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142362236] [2021-10-04 18:39:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:25,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:25,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:25,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142362236] [2021-10-04 18:39:25,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142362236] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:25,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:25,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:25,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456714593] [2021-10-04 18:39:25,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:25,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:25,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:25,842 INFO L87 Difference]: Start difference. First operand 44 states and 74 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:25,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:25,933 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2021-10-04 18:39:25,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:39:25,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-04 18:39:25,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:25,935 INFO L225 Difference]: With dead ends: 63 [2021-10-04 18:39:25,936 INFO L226 Difference]: Without dead ends: 44 [2021-10-04 18:39:25,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-04 18:39:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-04 18:39:25,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2021-10-04 18:39:25,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:25,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-10-04 18:39:25,943 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-10-04 18:39:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:25,944 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-10-04 18:39:25,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-10-04 18:39:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:25,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:25,946 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:25,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-04 18:39:25,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:25,947 INFO L82 PathProgramCache]: Analyzing trace with hash 582422768, now seen corresponding path program 3 times [2021-10-04 18:39:25,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:25,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503756262] [2021-10-04 18:39:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:25,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:26,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:26,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503756262] [2021-10-04 18:39:26,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503756262] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:26,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:26,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:26,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381040282] [2021-10-04 18:39:26,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:26,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:26,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:26,229 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:26,347 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2021-10-04 18:39:26,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:39:26,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-04 18:39:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:26,348 INFO L225 Difference]: With dead ends: 51 [2021-10-04 18:39:26,349 INFO L226 Difference]: Without dead ends: 36 [2021-10-04 18:39:26,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 112.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-04 18:39:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-04 18:39:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-10-04 18:39:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2021-10-04 18:39:26,359 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 16 [2021-10-04 18:39:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:26,361 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2021-10-04 18:39:26,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2021-10-04 18:39:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:26,364 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:26,364 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:26,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-04 18:39:26,365 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:26,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:26,367 INFO L82 PathProgramCache]: Analyzing trace with hash 278128966, now seen corresponding path program 4 times [2021-10-04 18:39:26,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:26,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33449749] [2021-10-04 18:39:26,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:26,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:26,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:26,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33449749] [2021-10-04 18:39:26,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33449749] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:26,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:26,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:26,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525253320] [2021-10-04 18:39:26,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:26,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:26,597 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:26,684 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-10-04 18:39:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:39:26,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-04 18:39:26,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:26,687 INFO L225 Difference]: With dead ends: 37 [2021-10-04 18:39:26,687 INFO L226 Difference]: Without dead ends: 24 [2021-10-04 18:39:26,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 84.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-04 18:39:26,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-04 18:39:26,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-04 18:39:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-10-04 18:39:26,695 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2021-10-04 18:39:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:26,696 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-04 18:39:26,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-10-04 18:39:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:26,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:26,699 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:26,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-04 18:39:26,699 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:26,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1102489320, now seen corresponding path program 5 times [2021-10-04 18:39:26,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:26,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702016625] [2021-10-04 18:39:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:26,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:26,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:26,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702016625] [2021-10-04 18:39:26,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702016625] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:26,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:26,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:26,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079617567] [2021-10-04 18:39:26,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:26,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:26,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:26,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:26,876 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:26,976 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-10-04 18:39:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:39:26,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-04 18:39:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:26,977 INFO L225 Difference]: With dead ends: 31 [2021-10-04 18:39:26,978 INFO L226 Difference]: Without dead ends: 22 [2021-10-04 18:39:26,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 108.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-04 18:39:26,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-04 18:39:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-04 18:39:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-10-04 18:39:26,982 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2021-10-04 18:39:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:26,982 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-04 18:39:26,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:26,983 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-10-04 18:39:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-04 18:39:26,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:39:26,984 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:39:26,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-04 18:39:26,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-04 18:39:26,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:39:26,985 INFO L82 PathProgramCache]: Analyzing trace with hash 608123988, now seen corresponding path program 6 times [2021-10-04 18:39:26,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:39:26,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080984344] [2021-10-04 18:39:26,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:39:26,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:39:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:39:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:39:27,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:39:27,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080984344] [2021-10-04 18:39:27,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080984344] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:39:27,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:39:27,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-04 18:39:27,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87275227] [2021-10-04 18:39:27,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-04 18:39:27,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:39:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-04 18:39:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:39:27,164 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:39:27,246 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-10-04 18:39:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-04 18:39:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-04 18:39:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:39:27,247 INFO L225 Difference]: With dead ends: 21 [2021-10-04 18:39:27,247 INFO L226 Difference]: Without dead ends: 0 [2021-10-04 18:39:27,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-04 18:39:27,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-04 18:39:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-04 18:39:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-04 18:39:27,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-04 18:39:27,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:39:27,249 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-04 18:39:27,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:39:27,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-04 18:39:27,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-04 18:39:27,253 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-04 18:39:27,253 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-04 18:39:27,254 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-04 18:39:27,254 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-04 18:39:27,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-04 18:39:27,259 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-04 18:39:27,260 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-04 18:39:27,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 06:39:27 BasicIcfg [2021-10-04 18:39:27,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-04 18:39:27,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-04 18:39:27,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-04 18:39:27,263 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-04 18:39:27,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:19" (3/4) ... [2021-10-04 18:39:27,267 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-04 18:39:27,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-04 18:39:27,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-04 18:39:27,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-04 18:39:27,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-04 18:39:27,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-04 18:39:27,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:39:27,329 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-04 18:39:27,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-04 18:39:27,332 INFO L168 Benchmark]: Toolchain (without parser) took 8675.19 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 28.7 MB in the beginning and 41.5 MB in the end (delta: -12.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,332 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory is still 27.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:39:27,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.87 ms. Allocated memory is still 52.4 MB. Free memory was 28.4 MB in the beginning and 31.7 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 52.4 MB. Free memory was 31.7 MB in the beginning and 30.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,334 INFO L168 Benchmark]: Boogie Preprocessor took 28.87 ms. Allocated memory is still 52.4 MB. Free memory was 30.1 MB in the beginning and 28.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,335 INFO L168 Benchmark]: RCFGBuilder took 611.71 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 44.0 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,336 INFO L168 Benchmark]: TraceAbstraction took 7608.79 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 43.4 MB in the beginning and 45.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,336 INFO L168 Benchmark]: Witness Printer took 67.03 ms. Allocated memory is still 79.7 MB. Free memory was 45.2 MB in the beginning and 41.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-04 18:39:27,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory is still 27.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.87 ms. Allocated memory is still 52.4 MB. Free memory was 28.4 MB in the beginning and 31.7 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 52.4 MB. Free memory was 31.7 MB in the beginning and 30.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.87 ms. Allocated memory is still 52.4 MB. Free memory was 30.1 MB in the beginning and 28.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 611.71 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 44.0 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7608.79 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 43.4 MB in the beginning and 45.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 67.03 ms. Allocated memory is still 79.7 MB. Free memory was 45.2 MB in the beginning and 41.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4733.1ms, 130 PlacesBefore, 30 PlacesAfterwards, 130 TransitionsBefore, 20 TransitionsAfterwards, 2958 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 10 ChoiceCompositions, 136 TotalNumberOfCompositions, 2947 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2947, positive: 2947, positive conditional: 0, positive unconditional: 2947, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2345, positive: 2345, positive conditional: 0, positive unconditional: 2345, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2345, positive: 2345, positive conditional: 0, positive unconditional: 2345, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2947, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2345, unknown conditional: 0, unknown unconditional: 2345] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 51]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 169 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7352.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 16.8ms, AutomataDifference: 731.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4794.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 118 SDtfs, 197 SDslu, 139 SDs, 0 SdLazy, 80 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 630.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 50.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.3ms SsaConstructionTime, 405.8ms SatisfiabilityAnalysisTime, 1090.1ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-04 18:39:27,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...