/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:35:25,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:35:25,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:35:25,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:35:25,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:35:25,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:35:25,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:35:25,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:35:25,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:35:25,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:35:25,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:35:25,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:35:25,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:35:25,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:35:25,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:35:25,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:35:25,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:35:25,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:35:25,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:35:25,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:35:25,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:35:25,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:35:25,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:35:25,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:35:25,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:35:25,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:35:25,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:35:25,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:35:25,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:35:25,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:35:25,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:35:25,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:35:25,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:35:25,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:35:25,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:35:25,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:35:25,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:35:25,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:35:25,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:35:25,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:35:25,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:35:25,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:35:25,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:35:25,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:35:25,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:35:25,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:35:25,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:35:25,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:35:25,352 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:35:25,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:35:25,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:35:25,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:35:25,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:35:25,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:35:25,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:35:25,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:35:25,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:35:25,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:35:25,354 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:35:25,355 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:35:25,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:35:25,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:35:25,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:35:25,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:35:25,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:35:25,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:35:25,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:35:25,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:35:25,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:35:25,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:35:25,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:35:25,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:35:25,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:35:25,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:35:25,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:35:25,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:35:25,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:35:25,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:35:25,808 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:35:25,809 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:35:25,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2021-10-13 19:35:25,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53ee429fd/536e00928a834a4e93870a172eac0158/FLAG1ae42002a [2021-10-13 19:35:26,486 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:35:26,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2021-10-13 19:35:26,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53ee429fd/536e00928a834a4e93870a172eac0158/FLAG1ae42002a [2021-10-13 19:35:26,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53ee429fd/536e00928a834a4e93870a172eac0158 [2021-10-13 19:35:26,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:35:26,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:35:26,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:35:26,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:35:26,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:35:26,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:35:26" (1/1) ... [2021-10-13 19:35:26,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b12275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:26, skipping insertion in model container [2021-10-13 19:35:26,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:35:26" (1/1) ... [2021-10-13 19:35:26,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:35:26,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:35:27,178 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/popl20-more-nonblocking-counter-alt2.wvr.c[2087,2100] [2021-10-13 19:35:27,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:35:27,191 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:35:27,229 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/popl20-more-nonblocking-counter-alt2.wvr.c[2087,2100] [2021-10-13 19:35:27,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:35:27,254 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:35:27,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27 WrapperNode [2021-10-13 19:35:27,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:35:27,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:35:27,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:35:27,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:35:27,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:35:27,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:35:27,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:35:27,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:35:27,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:35:27,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:35:27,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:35:27,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:35:27,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (1/1) ... [2021-10-13 19:35:27,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:35:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:35:27,408 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) [2021-10-13 19:35:27,432 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 [2021-10-13 19:35:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:35:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:35:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:35:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:35:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:35:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:35:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:35:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 19:35:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 19:35:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:35:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:35:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:35:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:35:27,482 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:35:27,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:35:27,855 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 19:35:27,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:35:27 BoogieIcfgContainer [2021-10-13 19:35:27,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:35:27,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:35:27,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:35:27,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:35:27,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:35:26" (1/3) ... [2021-10-13 19:35:27,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f990f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:35:27, skipping insertion in model container [2021-10-13 19:35:27,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:35:27" (2/3) ... [2021-10-13 19:35:27,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f990f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:35:27, skipping insertion in model container [2021-10-13 19:35:27,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:35:27" (3/3) ... [2021-10-13 19:35:27,868 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2021-10-13 19:35:27,874 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:35:27,874 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:35:27,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2021-10-13 19:35:27,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f990f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:35:27, skipping insertion in model container [2021-10-13 19:35:27,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:35:27,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:35:27,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:35:27,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:35:27,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:35:27" (3/3) ... [2021-10-13 19:35:27,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:35:27,888 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:35:27,888 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:35:27,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-13 19:35:27,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:35:27,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:35:27,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:35:28,007 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-nonblocking-counter-alt2.wvr.c-witness.graphml [2021-10-13 19:35:28,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:35:28,010 INFO L168 Benchmark]: Toolchain (without parser) took 1129.19 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 134.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,011 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:35:28,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.14 ms. Allocated memory is still 152.0 MB. Free memory was 126.6 MB in the beginning and 116.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 152.0 MB. Free memory was 116.8 MB in the beginning and 115.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,013 INFO L168 Benchmark]: Boogie Preprocessor took 58.46 ms. Allocated memory is still 152.0 MB. Free memory was 115.3 MB in the beginning and 114.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,013 INFO L168 Benchmark]: RCFGBuilder took 489.01 ms. Allocated memory is still 152.0 MB. Free memory was 114.0 MB in the beginning and 101.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,014 INFO L168 Benchmark]: TraceAbstraction took 15.34 ms. Allocated memory is still 152.0 MB. Free memory was 100.9 MB in the beginning and 99.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,015 INFO L168 Benchmark]: Witness Printer took 130.92 ms. Allocated memory is still 152.0 MB. Free memory was 99.8 MB in the beginning and 134.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. [2021-10-13 19:35:28,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 366.14 ms. Allocated memory is still 152.0 MB. Free memory was 126.6 MB in the beginning and 116.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 152.0 MB. Free memory was 116.8 MB in the beginning and 115.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.46 ms. Allocated memory is still 152.0 MB. Free memory was 115.3 MB in the beginning and 114.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 489.01 ms. Allocated memory is still 152.0 MB. Free memory was 114.0 MB in the beginning and 101.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15.34 ms. Allocated memory is still 152.0 MB. Free memory was 100.9 MB in the beginning and 99.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Witness Printer took 130.92 ms. Allocated memory is still 152.0 MB. Free memory was 99.8 MB in the beginning and 134.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2021-10-13 19:35:28,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...