./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:45:40,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:45:40,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:45:40,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:45:40,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:45:40,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:45:40,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:45:40,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:45:40,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:45:40,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:45:40,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:45:40,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:45:40,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:45:40,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:45:40,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:45:40,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:45:40,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:45:40,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:45:40,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:45:40,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:45:40,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:45:40,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:45:40,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:45:40,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:45:40,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:45:40,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:45:40,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:45:40,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:45:40,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:45:40,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:45:40,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:45:40,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:45:40,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:45:40,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:45:40,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:45:40,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:45:40,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:45:40,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:45:40,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:45:40,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:45:40,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:45:40,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:45:40,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:45:40,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:45:40,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:45:40,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:45:40,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:45:40,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:45:40,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:45:40,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:45:40,876 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:45:40,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:45:40,877 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:45:40,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:45:40,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:45:40,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:45:40,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:45:40,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:45:40,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:45:40,878 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:45:40,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:45:40,878 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:45:40,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:45:40,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:45:40,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:45:40,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:45:40,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:45:40,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:45:40,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:45:40,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:45:40,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:45:40,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:45:40,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:45:40,881 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:45:40,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:45:40,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:45:40,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2021-12-14 16:45:41,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:45:41,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:45:41,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:45:41,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:45:41,121 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:45:41,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-12-14 16:45:41,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d661c8921/bf5266d7a3f845759f57058a4c3e5549/FLAG92ac891b2 [2021-12-14 16:45:41,562 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:45:41,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-12-14 16:45:41,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d661c8921/bf5266d7a3f845759f57058a4c3e5549/FLAG92ac891b2 [2021-12-14 16:45:41,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d661c8921/bf5266d7a3f845759f57058a4c3e5549 [2021-12-14 16:45:41,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:45:41,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:45:41,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:45:41,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:45:41,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:45:41,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:41,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd2e9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41, skipping insertion in model container [2021-12-14 16:45:41,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:41,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:45:41,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:45:41,797 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/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-12-14 16:45:41,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:45:41,925 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:45:41,934 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/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-12-14 16:45:41,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:45:41,988 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:45:41,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41 WrapperNode [2021-12-14 16:45:41,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:45:41,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:45:41,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:45:41,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:45:41,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,026 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-12-14 16:45:42,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:45:42,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:45:42,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:45:42,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:45:42,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:45:42,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:45:42,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:45:42,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:45:42,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (1/1) ... [2021-12-14 16:45:42,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:45:42,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:45:42,083 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) [2021-12-14 16:45:42,085 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 [2021-12-14 16:45:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:45:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:45:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:45:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-14 16:45:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-14 16:45:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:45:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:45:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:45:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:45:42,116 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:45:42,214 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:45:42,215 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:45:42,298 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:45:42,302 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:45:42,303 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 16:45:42,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:45:42 BoogieIcfgContainer [2021-12-14 16:45:42,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:45:42,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:45:42,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:45:42,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:45:42,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:45:41" (1/3) ... [2021-12-14 16:45:42,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df6b8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:45:42, skipping insertion in model container [2021-12-14 16:45:42,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:45:41" (2/3) ... [2021-12-14 16:45:42,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df6b8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:45:42, skipping insertion in model container [2021-12-14 16:45:42,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:45:42" (3/3) ... [2021-12-14 16:45:42,319 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-12-14 16:45:42,324 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:45:42,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:45:42,328 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:45:42,328 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:45:42,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,353 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,354 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,356 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,357 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:45:42,359 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-14 16:45:42,389 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:45:42,393 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 [2021-12-14 16:45:42,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 16:45:42,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2021-12-14 16:45:42,418 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-12-14 16:45:42,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:45:42,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-12-14 16:45:42,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2021-12-14 16:45:42,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2021-12-14 16:45:42,430 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-12-14 16:45:42,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:45:42,431 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:45:42,431 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] [2021-12-14 16:45:42,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 16:45:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:45:42,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2021-12-14 16:45:42,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:45:42,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710717955] [2021-12-14 16:45:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:45:42,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:45:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 16:45:42,515 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 16:45:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 16:45:42,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 16:45:42,545 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 16:45:42,546 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-14 16:45:42,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-14 16:45:42,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-14 16:45:42,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:45:42,554 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-14 16:45:42,559 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-14 16:45:42,559 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 16:45:42,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:45:42 BasicIcfg [2021-12-14 16:45:42,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 16:45:42,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 16:45:42,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 16:45:42,587 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 16:45:42,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:45:42" (3/4) ... [2021-12-14 16:45:42,589 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-14 16:45:42,628 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 16:45:42,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 16:45:42,629 INFO L158 Benchmark]: Toolchain (without parser) took 1031.38ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 60.0MB in the beginning and 73.1MB in the end (delta: -13.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,630 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:45:42,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.39ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 59.4MB in the end (delta: 390.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.24ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,634 INFO L158 Benchmark]: Boogie Preprocessor took 23.70ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 56.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,635 INFO L158 Benchmark]: RCFGBuilder took 253.12ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 46.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,635 INFO L158 Benchmark]: TraceAbstraction took 274.02ms. Allocated memory is still 119.5MB. Free memory was 96.7MB in the beginning and 75.8MB in the end (delta: 20.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,636 INFO L158 Benchmark]: Witness Printer took 41.82ms. Allocated memory is still 119.5MB. Free memory was 75.8MB in the beginning and 73.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 16:45:42,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.39ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 59.4MB in the end (delta: 390.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.24ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.70ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 56.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 253.12ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 46.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 274.02ms. Allocated memory is still 119.5MB. Free memory was 96.7MB in the beginning and 75.8MB in the end (delta: 20.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 41.82ms. Allocated memory is still 119.5MB. Free memory was 75.8MB in the beginning and 73.1MB in the end (delta: 2.7MB). 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, x=0] [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 60 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 28 NumberOfCodeBlocks, 28 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! [2021-12-14 16:45:42,688 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