/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-mult-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:37:58,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:37:58,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:37:58,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:37:58,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:37:58,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:37:58,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:37:58,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:37:58,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:37:58,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:37:58,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:37:58,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:37:58,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:37:58,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:37:58,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:37:58,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:37:58,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:37:58,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:37:58,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:37:58,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:37:58,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:37:58,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:37:58,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:37:58,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:37:58,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:37:58,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:37:58,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:37:58,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:37:58,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:37:58,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:37:58,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:37:58,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:37:58,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:37:58,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:37:58,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:37:58,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:37:58,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:37:58,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:37:58,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:37:58,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:37:58,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:37:58,521 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 19:37:58,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:37:58,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:37:58,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:37:58,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:37:58,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:37:58,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:37:58,578 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:37:58,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:37:58,579 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:37:58,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:37:58,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:37:58,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:37:58,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:37:58,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:37:58,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:37:58,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:37:58,582 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:37:58,582 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:37:58,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:37:58,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:37:58,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:37:58,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:37:58,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:37:58,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:37:58,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:37:58,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:37:58,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:37:58,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:37:58,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:37:58,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:37:58,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:37:58,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:37:58,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:37:59,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:37:59,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:37:59,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:37:59,085 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:37:59,086 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:37:59,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c [2021-10-13 19:37:59,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0929f2597/2d77227a5f3447f3bc84aec69a67e913/FLAG7b0425d42 [2021-10-13 19:37:59,888 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:37:59,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c [2021-10-13 19:37:59,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0929f2597/2d77227a5f3447f3bc84aec69a67e913/FLAG7b0425d42 [2021-10-13 19:38:00,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0929f2597/2d77227a5f3447f3bc84aec69a67e913 [2021-10-13 19:38:00,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:38:00,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:38:00,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:38:00,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:38:00,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:38:00,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6991e75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00, skipping insertion in model container [2021-10-13 19:38:00,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:38:00,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:38:00,487 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-mult-equiv.wvr.c[2281,2294] [2021-10-13 19:38:00,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:38:00,499 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:38:00,526 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-mult-equiv.wvr.c[2281,2294] [2021-10-13 19:38:00,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:38:00,545 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:38:00,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00 WrapperNode [2021-10-13 19:38:00,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:38:00,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:38:00,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:38:00,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:38:00,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:38:00,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:38:00,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:38:00,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:38:00,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:38:00,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:38:00,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:38:00,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:38:00,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (1/1) ... [2021-10-13 19:38:00,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:38:00,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:38:00,741 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 19:38:00,761 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 19:38:00,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:38:00,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:38:00,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:38:00,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:38:00,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-13 19:38:00,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-13 19:38:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:38:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:38:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:38:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 19:38:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 19:38:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:38:00,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:38:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:38:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:38:00,832 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 19:38:01,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:38:01,337 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-13 19:38:01,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:01 BoogieIcfgContainer [2021-10-13 19:38:01,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:38:01,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:38:01,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:38:01,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:38:01,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:38:00" (1/3) ... [2021-10-13 19:38:01,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616544af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:38:01, skipping insertion in model container [2021-10-13 19:38:01,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:38:00" (2/3) ... [2021-10-13 19:38:01,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616544af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:38:01, skipping insertion in model container [2021-10-13 19:38:01,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:01" (3/3) ... [2021-10-13 19:38:01,354 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2021-10-13 19:38:01,361 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:38:01,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:38:01,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2021-10-13 19:38:01,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616544af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:38:01, skipping insertion in model container [2021-10-13 19:38:01,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:38:01,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:38:01,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:38:01,366 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:38:01,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:01" (3/3) ... [2021-10-13 19:38:01,371 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:38:01,378 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:38:01,379 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:38:01,379 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-13 19:38:01,386 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-13 19:38:01,387 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:38:01,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:38:01,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:38:01,462 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-mult-equiv.wvr.c-witness.graphml [2021-10-13 19:38:01,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:38:01,466 INFO L168 Benchmark]: Toolchain (without parser) took 1236.39 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 103.1 MB in the end (delta: 32.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,466 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 130.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:38:01,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.88 ms. Allocated memory is still 160.4 MB. Free memory was 134.9 MB in the beginning and 124.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.11 ms. Allocated memory is still 160.4 MB. Free memory was 124.6 MB in the beginning and 123.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,474 INFO L168 Benchmark]: Boogie Preprocessor took 64.10 ms. Allocated memory is still 160.4 MB. Free memory was 123.0 MB in the beginning and 121.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,475 INFO L168 Benchmark]: RCFGBuilder took 659.91 ms. Allocated memory is still 160.4 MB. Free memory was 121.6 MB in the beginning and 107.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,478 INFO L168 Benchmark]: TraceAbstraction took 19.97 ms. Allocated memory is still 160.4 MB. Free memory was 107.0 MB in the beginning and 105.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,478 INFO L168 Benchmark]: Witness Printer took 97.67 ms. Allocated memory is still 160.4 MB. Free memory was 105.9 MB in the beginning and 103.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:38:01,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 130.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 309.88 ms. Allocated memory is still 160.4 MB. Free memory was 134.9 MB in the beginning and 124.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 68.11 ms. Allocated memory is still 160.4 MB. Free memory was 124.6 MB in the beginning and 123.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.10 ms. Allocated memory is still 160.4 MB. Free memory was 123.0 MB in the beginning and 121.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 659.91 ms. Allocated memory is still 160.4 MB. Free memory was 121.6 MB in the beginning and 107.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19.97 ms. Allocated memory is still 160.4 MB. Free memory was 107.0 MB in the beginning and 105.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Witness Printer took 97.67 ms. Allocated memory is still 160.4 MB. Free memory was 105.9 MB in the beginning and 103.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 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 19:38:01,537 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...