./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/uthash-2.0.2/uthash_JEN_test10-2.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 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:50:40,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:50:40,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:50:40,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:50:40,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:50:40,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:50:40,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:50:40,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:50:40,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:50:40,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:50:40,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:50:40,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:50:40,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:50:40,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:50:40,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:50:40,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:50:40,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:50:40,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:50:40,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:50:40,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:50:40,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:50:40,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:50:40,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:50:40,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:50:40,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:50:40,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:50:40,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:50:40,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:50:40,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:50:40,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:50:40,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:50:40,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:50:40,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:50:40,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:50:40,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:50:40,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:50:40,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:50:40,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:50:40,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:50:40,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:50:40,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:50:40,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 13:50:40,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:50:40,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:50:40,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:50:40,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:50:40,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:50:40,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:50:40,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:50:40,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:50:40,910 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:50:40,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:50:40,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 13:50:40,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:50:40,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 13:50:40,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:50:40,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:50:40,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:50:40,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:50:40,913 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 13:50:40,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:50:40,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:50:40,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:50:40,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:50:40,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:50:40,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:50:40,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:50:40,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:50:40,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:50:40,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:50:40,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:50:40,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:50:40,916 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:50:40,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:50:40,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:50:40,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:50:40,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e [2021-12-15 13:50:41,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:50:41,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:50:41,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:50:41,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:50:41,172 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:50:41,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-12-15 13:50:41,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227306061/97c610f33ddb4adf8f00bc82f3e2e0ac/FLAG109db4cb4 [2021-12-15 13:50:41,798 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:50:41,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-12-15 13:50:41,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227306061/97c610f33ddb4adf8f00bc82f3e2e0ac/FLAG109db4cb4 [2021-12-15 13:50:42,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227306061/97c610f33ddb4adf8f00bc82f3e2e0ac [2021-12-15 13:50:42,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:50:42,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:50:42,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:50:42,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:50:42,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:50:42,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:50:42" (1/1) ... [2021-12-15 13:50:42,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2495e015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:42, skipping insertion in model container [2021-12-15 13:50:42,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:50:42" (1/1) ... [2021-12-15 13:50:42,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:50:42,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:50:42,673 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/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-12-15 13:50:42,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:50:42,889 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:50:42,930 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/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-12-15 13:50:43,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:50:43,059 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:50:43,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43 WrapperNode [2021-12-15 13:50:43,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:50:43,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:50:43,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:50:43,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:50:43,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,218 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-12-15 13:50:43,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:50:43,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:50:43,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:50:43,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:50:43,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:50:43,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:50:43,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:50:43,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:50:43,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (1/1) ... [2021-12-15 13:50:43,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:50:43,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:50:43,408 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) [2021-12-15 13:50:43,430 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 [2021-12-15 13:50:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-12-15 13:50:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-12-15 13:50:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:50:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 13:50:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 13:50:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:50:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-15 13:50:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-15 13:50:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:50:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:50:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:50:43,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:50:43,771 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:50:43,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:50:44,970 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 13:50:44,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 13:50:44,985 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-12-15 13:50:44,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:50:44 BoogieIcfgContainer [2021-12-15 13:50:44,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 13:50:44,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 13:50:44,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 13:50:44,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 13:50:44,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 01:50:42" (1/3) ... [2021-12-15 13:50:44,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664f8619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:50:44, skipping insertion in model container [2021-12-15 13:50:44,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:43" (2/3) ... [2021-12-15 13:50:44,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664f8619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:50:44, skipping insertion in model container [2021-12-15 13:50:44,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:50:44" (3/3) ... [2021-12-15 13:50:44,996 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test10-2.i [2021-12-15 13:50:45,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 13:50:45,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 13:50:45,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 13:50:45,074 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 [2021-12-15 13:50:45,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 13:50:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 438 states have (on average 1.7100456621004567) internal successors, (749), 443 states have internal predecessors, (749), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-15 13:50:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 13:50:45,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 13:50:45,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 13:50:45,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 13:50:45,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 13:50:45,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1709343748, now seen corresponding path program 1 times [2021-12-15 13:50:45,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 13:50:45,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270637299] [2021-12-15 13:50:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 13:50:45,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 13:50:45,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 13:50:45,179 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:50:45,185 INFO L158 Benchmark]: Toolchain (without parser) took 2982.93ms. Allocated memory was 88.1MB in the beginning and 153.1MB in the end (delta: 65.0MB). Free memory was 53.9MB in the beginning and 72.6MB in the end (delta: -18.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2021-12-15 13:50:45,186 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 45.0MB in the beginning and 44.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:50:45,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 858.63ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.9MB in the beginning and 72.5MB in the end (delta: -18.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2021-12-15 13:50:45,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 157.94ms. Allocated memory is still 113.2MB. Free memory was 72.5MB in the beginning and 60.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 13:50:45,187 INFO L158 Benchmark]: Boogie Preprocessor took 152.91ms. Allocated memory is still 113.2MB. Free memory was 60.0MB in the beginning and 72.5MB in the end (delta: -12.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-12-15 13:50:45,188 INFO L158 Benchmark]: RCFGBuilder took 1615.16ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 72.5MB in the beginning and 86.0MB in the end (delta: -13.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-12-15 13:50:45,188 INFO L158 Benchmark]: TraceAbstraction took 192.54ms. Allocated memory is still 153.1MB. Free memory was 85.2MB in the beginning and 72.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 13:50:45,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 45.0MB in the beginning and 44.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 858.63ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.9MB in the beginning and 72.5MB in the end (delta: -18.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 157.94ms. Allocated memory is still 113.2MB. Free memory was 72.5MB in the beginning and 60.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.91ms. Allocated memory is still 113.2MB. Free memory was 60.0MB in the beginning and 72.5MB in the end (delta: -12.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1615.16ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 72.5MB in the beginning and 86.0MB in the end (delta: -13.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * TraceAbstraction took 192.54ms. Allocated memory is still 153.1MB. Free memory was 85.2MB in the beginning and 72.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 13:50:45,231 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/uthash-2.0.2/uthash_JEN_test10-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:50:47,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:50:47,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:50:47,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:50:47,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:50:47,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:50:47,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:50:47,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:50:47,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:50:47,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:50:47,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:50:47,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:50:47,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:50:47,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:50:47,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:50:47,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:50:47,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:50:47,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:50:47,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:50:47,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:50:47,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:50:47,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:50:47,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:50:47,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:50:47,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:50:47,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:50:47,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:50:47,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:50:47,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:50:47,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:50:47,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:50:47,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:50:47,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:50:47,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:50:47,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:50:47,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:50:47,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:50:47,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:50:47,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:50:47,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:50:47,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:50:47,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 13:50:47,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:50:47,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:50:47,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:50:47,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:50:47,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:50:47,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:50:47,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:50:47,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:50:47,282 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:50:47,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:50:47,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 13:50:47,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 13:50:47,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:50:47,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:50:47,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:50:47,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:50:47,285 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:50:47,285 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:50:47,285 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:50:47,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 13:50:47,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:50:47,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:50:47,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:50:47,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:50:47,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:50:47,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:50:47,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:50:47,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:50:47,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:50:47,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:50:47,292 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:50:47,293 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:50:47,293 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:50:47,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:50:47,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:50:47,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:50:47,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:50:47,294 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e [2021-12-15 13:50:47,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:50:47,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:50:47,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:50:47,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:50:47,635 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:50:47,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-12-15 13:50:47,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0457c35/230eb534b16940428f3c5bef801e1868/FLAG3aad9a078 [2021-12-15 13:50:48,326 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:50:48,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-12-15 13:50:48,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0457c35/230eb534b16940428f3c5bef801e1868/FLAG3aad9a078 [2021-12-15 13:50:48,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0457c35/230eb534b16940428f3c5bef801e1868 [2021-12-15 13:50:48,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:50:48,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:50:48,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:50:48,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:50:48,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:50:48,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:50:48" (1/1) ... [2021-12-15 13:50:48,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fec43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:48, skipping insertion in model container [2021-12-15 13:50:48,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:50:48" (1/1) ... [2021-12-15 13:50:48,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:50:48,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:50:49,269 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/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-12-15 13:50:49,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:50:49,497 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:50:49,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:50:49,536 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/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-12-15 13:50:49,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:50:49,648 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:50:49,669 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/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-12-15 13:50:49,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:50:49,760 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:50:49,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49 WrapperNode [2021-12-15 13:50:49,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:50:49,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:50:49,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:50:49,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:50:49,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:49,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:49,919 INFO L137 Inliner]: procedures = 180, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2327 [2021-12-15 13:50:49,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:50:49,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:50:49,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:50:49,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:50:49,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:49,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:49,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:49,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:50,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:50,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:50,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:50,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:50:50,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:50:50,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:50:50,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:50:50,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (1/1) ... [2021-12-15 13:50:50,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:50:50,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:50:50,128 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) [2021-12-15 13:50:50,157 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 [2021-12-15 13:50:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 13:50:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-12-15 13:50:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-12-15 13:50:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:50:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 13:50:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 13:50:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-15 13:50:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:50:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:50:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:50:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:50:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:50:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:50:50,536 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:50:50,538 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:51:02,161 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 13:51:02,171 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 13:51:02,172 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-12-15 13:51:02,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:51:02 BoogieIcfgContainer [2021-12-15 13:51:02,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 13:51:02,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 13:51:02,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 13:51:02,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 13:51:02,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 01:50:48" (1/3) ... [2021-12-15 13:51:02,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a59b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:51:02, skipping insertion in model container [2021-12-15 13:51:02,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:50:49" (2/3) ... [2021-12-15 13:51:02,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a59b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:51:02, skipping insertion in model container [2021-12-15 13:51:02,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:51:02" (3/3) ... [2021-12-15 13:51:02,181 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test10-2.i [2021-12-15 13:51:02,186 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 13:51:02,186 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 13:51:02,227 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 13:51:02,233 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 [2021-12-15 13:51:02,233 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 13:51:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 438 states have (on average 1.7100456621004567) internal successors, (749), 443 states have internal predecessors, (749), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-15 13:51:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 13:51:02,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 13:51:02,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 13:51:02,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 13:51:02,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 13:51:02,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1709343748, now seen corresponding path program 1 times [2021-12-15 13:51:02,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 13:51:02,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443676252] [2021-12-15 13:51:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 13:51:02,278 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 13:51:02,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 13:51:02,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 13:51:02,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 13:51:02,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 13:51:02,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 13:51:02,628 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:51:02,633 INFO L158 Benchmark]: Toolchain (without parser) took 13959.97ms. Allocated memory was 60.8MB in the beginning and 142.6MB in the end (delta: 81.8MB). Free memory was 36.1MB in the beginning and 58.9MB in the end (delta: -22.8MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2021-12-15 13:51:02,633 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:51:02,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.73ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 36.0MB in the beginning and 37.0MB in the end (delta: -1.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-12-15 13:51:02,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.22ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 37.0MB in the beginning and 56.4MB in the end (delta: -19.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-12-15 13:51:02,636 INFO L158 Benchmark]: Boogie Preprocessor took 174.99ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 41.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 13:51:02,640 INFO L158 Benchmark]: RCFGBuilder took 12077.39ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.1MB in the beginning and 76.0MB in the end (delta: -34.8MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2021-12-15 13:51:02,641 INFO L158 Benchmark]: TraceAbstraction took 455.49ms. Allocated memory is still 142.6MB. Free memory was 76.0MB in the beginning and 58.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 13:51:02,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.73ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 36.0MB in the beginning and 37.0MB in the end (delta: -1.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 158.22ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 37.0MB in the beginning and 56.4MB in the end (delta: -19.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 174.99ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 41.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 12077.39ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.1MB in the beginning and 76.0MB in the end (delta: -34.8MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * TraceAbstraction took 455.49ms. Allocated memory is still 142.6MB. Free memory was 76.0MB in the beginning and 58.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 13:51:02,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable