./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fafa05b72e6925548935fa790281a49d4bca5cad8ef15917dd3e0ea4e3ccb38f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:18:17,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:18:17,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:18:18,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:18:18,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:18:18,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:18:18,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:18:18,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:18:18,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:18:18,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:18:18,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:18:18,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:18:18,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:18:18,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:18:18,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:18:18,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:18:18,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:18:18,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:18:18,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:18:18,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:18:18,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:18:18,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:18:18,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:18:18,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:18:18,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:18:18,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:18:18,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:18:18,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:18:18,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:18:18,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:18:18,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:18:18,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:18:18,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:18:18,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:18:18,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:18:18,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:18:18,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:18:18,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:18:18,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:18:18,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:18:18,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:18:18,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:18:18,091 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:18:18,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:18:18,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:18:18,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:18:18,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:18:18,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:18:18,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:18:18,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:18:18,097 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:18:18,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:18:18,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:18:18,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:18:18,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:18:18,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:18:18,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:18:18,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:18:18,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:18:18,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:18:18,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:18:18,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:18:18,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:18:18,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:18:18,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fafa05b72e6925548935fa790281a49d4bca5cad8ef15917dd3e0ea4e3ccb38f [2021-12-21 15:18:18,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:18:18,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:18:18,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:18:18,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:18:18,309 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:18:18,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2021-12-21 15:18:18,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6869bcc3b/eff6262fc6a34b198f17d836039436d3/FLAGfd4a253b4 [2021-12-21 15:18:18,719 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:18:18,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2021-12-21 15:18:18,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6869bcc3b/eff6262fc6a34b198f17d836039436d3/FLAGfd4a253b4 [2021-12-21 15:18:18,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6869bcc3b/eff6262fc6a34b198f17d836039436d3 [2021-12-21 15:18:18,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:18:18,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:18:18,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:18:18,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:18:18,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:18:18,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:18,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9796350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18, skipping insertion in model container [2021-12-21 15:18:18,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:18,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:18:18,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:18:18,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c[2252,2265] [2021-12-21 15:18:18,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:18:18,934 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:18:18,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c[2252,2265] [2021-12-21 15:18:18,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:18:18,966 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:18:18,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18 WrapperNode [2021-12-21 15:18:18,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:18:18,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:18:18,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:18:18,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:18:18,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:18,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,001 INFO L137 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2021-12-21 15:18:19,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:18:19,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:18:19,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:18:19,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:18:19,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:18:19,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:18:19,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:18:19,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:18:19,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (1/1) ... [2021-12-21 15:18:19,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:18:19,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:18:19,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 15:18:19,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 15:18:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:18:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-21 15:18:19,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-21 15:18:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-21 15:18:19,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-21 15:18:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:18:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:18:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:18:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-21 15:18:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-21 15:18:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:18:19,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:18:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:18:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:18:19,097 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 15:18:19,153 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:18:19,154 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:18:19,287 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:18:19,326 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:18:19,326 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 15:18:19,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:18:19 BoogieIcfgContainer [2021-12-21 15:18:19,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:18:19,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:18:19,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:18:19,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:18:19,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:18:18" (1/3) ... [2021-12-21 15:18:19,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d0f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:18:19, skipping insertion in model container [2021-12-21 15:18:19,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:18:18" (2/3) ... [2021-12-21 15:18:19,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d0f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:18:19, skipping insertion in model container [2021-12-21 15:18:19,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:18:19" (3/3) ... [2021-12-21 15:18:19,334 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2021-12-21 15:18:19,338 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:18:19,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:18:19,338 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:18:19,338 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:18:19,366 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,366 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,367 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,368 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,375 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,376 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,379 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,380 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,388 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:18:19,397 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-21 15:18:19,432 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:18:19,437 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 15:18:19,438 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 15:18:19,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 208 flow [2021-12-21 15:18:19,479 INFO L129 PetriNetUnfolder]: 7/94 cut-off events. [2021-12-21 15:18:19,484 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-21 15:18:19,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 7/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-12-21 15:18:19,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 96 transitions, 208 flow [2021-12-21 15:18:19,490 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 182 flow [2021-12-21 15:18:19,522 INFO L129 PetriNetUnfolder]: 7/84 cut-off events. [2021-12-21 15:18:19,523 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-21 15:18:19,523 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:18:19,524 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:18:19,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-21 15:18:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:18:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1247515966, now seen corresponding path program 1 times [2021-12-21 15:18:19,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:18:19,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843834619] [2021-12-21 15:18:19,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:18:19,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:18:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:18:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:18:19,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:18:19,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843834619] [2021-12-21 15:18:19,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843834619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:18:19,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:18:19,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:18:19,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776082399] [2021-12-21 15:18:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:18:19,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:18:19,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:18:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:18:19,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:18:19,862 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 96 [2021-12-21 15:18:19,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 15:18:19,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:18:19,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 96 [2021-12-21 15:18:19,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:18:19,994 INFO L129 PetriNetUnfolder]: 4/79 cut-off events. [2021-12-21 15:18:19,994 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-12-21 15:18:19,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 79 events. 4/79 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 7/82 useless extension candidates. Maximal degree in co-relation 74. Up to 14 conditions per place. [2021-12-21 15:18:19,996 INFO L132 encePairwiseOnDemand]: 81/96 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2021-12-21 15:18:19,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 77 transitions, 210 flow [2021-12-21 15:18:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:18:19,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-21 15:18:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 631 transitions. [2021-12-21 15:18:20,013 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7303240740740741 [2021-12-21 15:18:20,014 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 631 transitions. [2021-12-21 15:18:20,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 631 transitions. [2021-12-21 15:18:20,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:18:20,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 631 transitions. [2021-12-21 15:18:20,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.11111111111111) internal successors, (631), 9 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 15:18:20,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 15:18:20,037 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 15:18:20,039 INFO L186 Difference]: Start difference. First operand has 85 places, 85 transitions, 182 flow. Second operand 9 states and 631 transitions. [2021-12-21 15:18:20,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 77 transitions, 210 flow [2021-12-21 15:18:20,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 77 transitions, 202 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-21 15:18:20,045 INFO L242 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2021-12-21 15:18:20,047 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2021-12-21 15:18:20,057 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 1 predicate places. [2021-12-21 15:18:20,057 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2021-12-21 15:18:20,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 15:18:20,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-21 15:18:20,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-21 15:18:20,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-12-21 15:18:20,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:18:20,064 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-21 15:18:20,067 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-21 15:18:20,067 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 15:18:20,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 03:18:20 BasicIcfg [2021-12-21 15:18:20,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 15:18:20,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 15:18:20,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 15:18:20,073 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 15:18:20,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:18:19" (3/4) ... [2021-12-21 15:18:20,075 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 15:18:20,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-12-21 15:18:20,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-12-21 15:18:20,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-12-21 15:18:20,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-21 15:18:20,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 15:18:20,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 15:18:20,121 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 15:18:20,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 15:18:20,124 INFO L158 Benchmark]: Toolchain (without parser) took 1378.61ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 59.5MB in the beginning and 61.3MB in the end (delta: -1.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-12-21 15:18:20,124 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 15:18:20,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.85ms. Allocated memory is still 96.5MB. Free memory was 59.2MB in the beginning and 71.7MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 15:18:20,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.56ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 15:18:20,125 INFO L158 Benchmark]: Boogie Preprocessor took 16.61ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 68.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 15:18:20,125 INFO L158 Benchmark]: RCFGBuilder took 308.89ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 54.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 15:18:20,126 INFO L158 Benchmark]: TraceAbstraction took 741.83ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 54.1MB in the beginning and 64.2MB in the end (delta: -10.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-12-21 15:18:20,126 INFO L158 Benchmark]: Witness Printer took 50.93ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 61.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 15:18:20,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.85ms. Allocated memory is still 96.5MB. Free memory was 59.2MB in the beginning and 71.7MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.56ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.61ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 68.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.89ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 54.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 741.83ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 54.1MB in the beginning and 64.2MB in the end (delta: -10.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 50.93ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 61.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 102 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 10 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-21 15:18:20,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE