./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 22:25:33,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:25:33,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:25:33,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:25:33,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:25:33,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:25:33,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:25:33,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:25:33,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:25:33,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:25:33,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:25:33,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:25:33,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:25:33,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:25:33,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:25:33,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:25:33,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:25:33,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:25:33,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:25:33,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:25:33,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:25:33,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:25:33,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:25:33,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:25:33,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:25:33,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:25:33,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:25:33,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:25:33,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:25:33,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:25:33,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:25:33,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:25:33,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:25:33,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:25:33,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:25:33,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:25:33,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:25:33,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:25:33,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:25:33,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:25:33,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:25:33,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:25:33,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:25:33,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:25:33,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:25:33,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:25:33,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:25:33,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:25:33,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:25:33,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:25:33,635 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:25:33,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:25:33,636 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:25:33,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:25:33,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:25:33,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:25:33,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:25:33,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:25:33,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:25:33,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:25:33,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:25:33,637 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:25:33,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:25:33,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:25:33,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:25:33,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:25:33,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:25:33,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:25:33,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:25:33,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:25:33,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:25:33,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:25:33,639 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:25:33,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:25:33,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:25:33,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:25:33,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2021-12-17 22:25:33,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:25:33,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:25:33,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:25:33,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:25:33,861 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:25:33,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-12-17 22:25:33,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f256ea199/4de2b708222e4431b4018656701f356b/FLAG786799613 [2021-12-17 22:25:34,342 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:25:34,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-12-17 22:25:34,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f256ea199/4de2b708222e4431b4018656701f356b/FLAG786799613 [2021-12-17 22:25:34,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f256ea199/4de2b708222e4431b4018656701f356b [2021-12-17 22:25:34,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:25:34,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:25:34,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:25:34,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:25:34,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:25:34,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180a5908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34, skipping insertion in model container [2021-12-17 22:25:34,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:25:34,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:25:34,539 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-17 22:25:34,650 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/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-12-17 22:25:34,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:25:34,668 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:25:34,680 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-17 22:25:34,703 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/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-12-17 22:25:34,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:25:34,735 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:25:34,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34 WrapperNode [2021-12-17 22:25:34,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:25:34,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:25:34,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:25:34,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:25:34,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,768 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2021-12-17 22:25:34,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:25:34,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:25:34,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:25:34,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:25:34,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:25:34,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:25:34,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:25:34,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:25:34,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (1/1) ... [2021-12-17 22:25:34,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:25:34,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:25:34,824 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) [2021-12-17 22:25:34,837 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 [2021-12-17 22:25:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:25:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-12-17 22:25:34,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-12-17 22:25:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:25:34,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:25:34,849 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-17 22:25:34,916 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:25:34,917 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:25:35,070 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:25:35,074 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:25:35,074 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 22:25:35,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:25:35 BoogieIcfgContainer [2021-12-17 22:25:35,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:25:35,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:25:35,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:25:35,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:25:35,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:25:34" (1/3) ... [2021-12-17 22:25:35,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d07c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:25:35, skipping insertion in model container [2021-12-17 22:25:35,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:25:34" (2/3) ... [2021-12-17 22:25:35,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d07c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:25:35, skipping insertion in model container [2021-12-17 22:25:35,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:25:35" (3/3) ... [2021-12-17 22:25:35,081 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-12-17 22:25:35,084 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:25:35,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:25:35,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 22:25:35,084 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:25:35,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,109 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,109 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,110 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,110 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:25:35,118 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-17 22:25:35,154 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:25:35,161 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 [2021-12-17 22:25:35,162 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-17 22:25:35,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2021-12-17 22:25:35,219 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2021-12-17 22:25:35,220 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-17 22:25:35,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-12-17 22:25:35,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2021-12-17 22:25:35,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 66 transitions, 135 flow [2021-12-17 22:25:35,245 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-12-17 22:25:35,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:25:35,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:25:35,251 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] [2021-12-17 22:25:35,252 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 22:25:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:25:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2021-12-17 22:25:35,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:25:35,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841853974] [2021-12-17 22:25:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:25:35,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:25:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:25:35,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 22:25:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:25:35,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 22:25:35,398 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 22:25:35,399 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-17 22:25:35,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-17 22:25:35,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-17 22:25:35,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:25:35,403 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-17 22:25:35,407 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-17 22:25:35,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 22:25:35,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:25:35 BasicIcfg [2021-12-17 22:25:35,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 22:25:35,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 22:25:35,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 22:25:35,427 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 22:25:35,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:25:35" (3/4) ... [2021-12-17 22:25:35,428 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 22:25:35,452 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 22:25:35,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 22:25:35,453 INFO L158 Benchmark]: Toolchain (without parser) took 1077.11ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 86.2MB in the beginning and 99.0MB in the end (delta: -12.8MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-12-17 22:25:35,454 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 22:25:35,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.50ms. Allocated memory is still 115.3MB. Free memory was 85.9MB in the beginning and 81.6MB in the end (delta: 4.3MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-12-17 22:25:35,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 115.3MB. Free memory was 81.6MB in the beginning and 79.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 22:25:35,455 INFO L158 Benchmark]: Boogie Preprocessor took 24.59ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 78.1MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 22:25:35,455 INFO L158 Benchmark]: RCFGBuilder took 279.67ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 66.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 22:25:35,455 INFO L158 Benchmark]: TraceAbstraction took 349.18ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 66.2MB in the beginning and 102.0MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 22:25:35,456 INFO L158 Benchmark]: Witness Printer took 26.10ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 22:25:35,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.50ms. Allocated memory is still 115.3MB. Free memory was 85.9MB in the beginning and 81.6MB in the end (delta: 4.3MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 115.3MB. Free memory was 81.6MB in the beginning and 79.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.59ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 78.1MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 279.67ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 66.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 349.18ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 66.2MB in the beginning and 102.0MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.10ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.0MB 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 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-17 22:25:35,485 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE