./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/ldv-regression/test10.c -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 71501a10523f048daeb674450fd4ef1923432fa1 ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 09:05:55,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 09:05:55,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 09:05:55,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 09:05:55,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 09:05:55,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 09:05:55,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 09:05:55,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 09:05:55,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 09:05:55,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 09:05:55,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 09:05:55,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 09:05:55,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 09:05:55,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 09:05:55,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 09:05:55,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 09:05:55,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 09:05:55,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 09:05:55,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 09:05:55,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 09:05:55,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 09:05:55,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 09:05:55,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 09:05:55,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 09:05:55,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 09:05:55,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 09:05:55,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 09:05:55,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 09:05:55,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 09:05:55,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 09:05:55,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 09:05:55,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 09:05:55,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 09:05:55,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 09:05:55,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 09:05:55,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 09:05:55,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 09:05:55,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 09:05:55,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 09:05:55,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 09:05:55,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 09:05:55,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 09:05:55,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 09:05:55,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 09:05:55,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 09:05:55,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 09:05:55,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 09:05:55,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 09:05:55,454 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 09:05:55,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 09:05:55,455 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 09:05:55,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 09:05:55,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 09:05:55,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 09:05:55,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 09:05:55,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 09:05:55,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 09:05:55,456 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 09:05:55,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 09:05:55,457 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 09:05:55,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 09:05:55,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 09:05:55,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 09:05:55,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 09:05:55,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 09:05:55,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 09:05:55,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 09:05:55,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 09:05:55,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 09:05:55,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 09:05:55,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 09:05:55,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 09:05:55,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71501a10523f048daeb674450fd4ef1923432fa1 [2021-08-29 09:05:55,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 09:05:55,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 09:05:55,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 09:05:55,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 09:05:55,778 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 09:05:55,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test10.c [2021-08-29 09:05:55,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560ae7295/37b7b462beb84edeb39e9193092ac56b/FLAGbb19a5cf5 [2021-08-29 09:05:56,236 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 09:05:56,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test10.c [2021-08-29 09:05:56,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560ae7295/37b7b462beb84edeb39e9193092ac56b/FLAGbb19a5cf5 [2021-08-29 09:05:56,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560ae7295/37b7b462beb84edeb39e9193092ac56b [2021-08-29 09:05:56,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 09:05:56,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 09:05:56,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 09:05:56,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 09:05:56,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 09:05:56,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3194531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56, skipping insertion in model container [2021-08-29 09:05:56,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 09:05:56,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 09:05:56,807 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test10.c[715,728] [2021-08-29 09:05:56,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 09:05:56,817 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 09:05:56,831 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test10.c[715,728] [2021-08-29 09:05:56,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 09:05:56,844 INFO L208 MainTranslator]: Completed translation [2021-08-29 09:05:56,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56 WrapperNode [2021-08-29 09:05:56,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 09:05:56,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 09:05:56,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 09:05:56,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 09:05:56,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 09:05:56,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 09:05:56,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 09:05:56,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 09:05:56,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 09:05:56,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 09:05:56,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 09:05:56,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 09:05:56,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (1/1) ... [2021-08-29 09:05:56,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 09:05:56,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 09:05:56,926 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) [2021-08-29 09:05:56,964 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 [2021-08-29 09:05:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-29 09:05:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-29 09:05:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 09:05:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-29 09:05:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 09:05:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 09:05:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 09:05:56,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 09:05:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 09:05:57,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 09:05:57,211 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 09:05:57,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:05:57 BoogieIcfgContainer [2021-08-29 09:05:57,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 09:05:57,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 09:05:57,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 09:05:57,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 09:05:57,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:05:56" (1/3) ... [2021-08-29 09:05:57,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:05:57, skipping insertion in model container [2021-08-29 09:05:57,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:05:56" (2/3) ... [2021-08-29 09:05:57,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:05:57, skipping insertion in model container [2021-08-29 09:05:57,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:05:57" (3/3) ... [2021-08-29 09:05:57,220 INFO L111 eAbstractionObserver]: Analyzing ICFG test10.c [2021-08-29 09:05:57,224 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 09:05:57,224 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 09:05:57,256 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 09:05:57,262 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 09:05:57,262 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 09:05:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 09:05:57,277 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 09:05:57,277 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 09:05:57,277 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 09:05:57,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 09:05:57,282 INFO L82 PathProgramCache]: Analyzing trace with hash 889477034, now seen corresponding path program 1 times [2021-08-29 09:05:57,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 09:05:57,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70028447] [2021-08-29 09:05:57,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 09:05:57,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 09:05:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 09:05:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 09:05:57,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 09:05:57,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70028447] [2021-08-29 09:05:57,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70028447] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 09:05:57,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 09:05:57,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 09:05:57,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767665080] [2021-08-29 09:05:57,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 09:05:57,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 09:05:57,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 09:05:57,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 09:05:57,768 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 09:05:57,931 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-08-29 09:05:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 09:05:57,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-29 09:05:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 09:05:57,938 INFO L225 Difference]: With dead ends: 16 [2021-08-29 09:05:57,939 INFO L226 Difference]: Without dead ends: 7 [2021-08-29 09:05:57,941 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 137.07ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 09:05:57,944 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.25ms IncrementalHoareTripleChecker+Time [2021-08-29 09:05:57,944 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 54.25ms Time] [2021-08-29 09:05:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-08-29 09:05:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-29 09:05:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-08-29 09:05:57,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-08-29 09:05:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 09:05:57,968 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-08-29 09:05:57,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-08-29 09:05:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 09:05:57,968 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 09:05:57,968 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 09:05:57,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 09:05:57,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 09:05:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 09:05:57,970 INFO L82 PathProgramCache]: Analyzing trace with hash 889478956, now seen corresponding path program 1 times [2021-08-29 09:05:57,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 09:05:57,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354886629] [2021-08-29 09:05:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 09:05:57,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 09:05:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 09:05:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 09:05:58,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 09:05:58,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354886629] [2021-08-29 09:05:58,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354886629] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 09:05:58,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 09:05:58,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 09:05:58,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275385611] [2021-08-29 09:05:58,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 09:05:58,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 09:05:58,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 09:05:58,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 09:05:58,120 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:58,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 09:05:58,293 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-08-29 09:05:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 09:05:58,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-29 09:05:58,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 09:05:58,294 INFO L225 Difference]: With dead ends: 7 [2021-08-29 09:05:58,294 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 09:05:58,295 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 142.52ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 09:05:58,296 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.62ms IncrementalHoareTripleChecker+Time [2021-08-29 09:05:58,300 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.30ms Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 53.62ms Time] [2021-08-29 09:05:58,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 09:05:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 09:05:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 09:05:58,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-08-29 09:05:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 09:05:58,301 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 09:05:58,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 09:05:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 09:05:58,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 09:05:58,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 09:05:58,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 09:05:58,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 09:05:58,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 09:05:58,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 09:05:58,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 09:05:58,353 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 09:05:58,353 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 09:05:58,353 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 09:05:58,354 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 09:05:58,354 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2021-08-29 09:05:58,354 INFO L854 garLoopResultBuilder]: At program point L50(lines 18 51) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| ~pp2~0.base) |~#p1~0.offset|) |~#b~0.offset|) (= ~pp2~0.base |~#p1~0.base|) (not (= |~#b~0.base| |~#p1~0.base|)) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= ~pp2~0.base |~#a~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (= |~#b~0.base| (select (select |#memory_$Pointer$.base| |~#p1~0.base|) |~#p1~0.offset|))) [2021-08-29 09:05:58,354 INFO L854 garLoopResultBuilder]: At program point L15(lines 11 16) the Hoare annotation is: (let ((.cse1 (select |#memory_$Pointer$.offset| ~pp2~0.base)) (.cse0 (select |#memory_$Pointer$.base| |~#p1~0.base|))) (and (= |~#b~0.base| (select .cse0 ~pp2~0.offset)) (= (select .cse1 |~#p1~0.offset|) |~#b~0.offset|) (= ~pp2~0.base |~#p1~0.base|) (not (= |~#b~0.base| |~#p1~0.base|)) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= ~pp2~0.base |~#a~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (= (select .cse1 ~pp2~0.offset) |~#b~0.offset|) (not (= |~#b~0.base| |~#p2~0.base|)) (= |~#b~0.base| (select .cse0 |~#p1~0.offset|)))) [2021-08-29 09:05:58,355 INFO L854 garLoopResultBuilder]: At program point L44(lines 18 51) the Hoare annotation is: false [2021-08-29 09:05:58,355 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-29 09:05:58,355 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 45) no Hoare annotation was computed. [2021-08-29 09:05:58,358 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 09:05:58,376 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,377 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,378 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,382 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,383 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,384 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,384 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,387 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,387 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,388 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,388 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:05:58 BoogieIcfgContainer [2021-08-29 09:05:58,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 09:05:58,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 09:05:58,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 09:05:58,391 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 09:05:58,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:05:57" (3/4) ... [2021-08-29 09:05:58,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 09:05:58,405 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-29 09:05:58,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 09:05:58,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 09:05:58,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 09:05:58,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 09:05:58,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 09:05:58,438 INFO L158 Benchmark]: Toolchain (without parser) took 1774.22ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 27.3MB in the end (delta: 7.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,438 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 09:05:58,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.98ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 25.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.38ms. Allocated memory is still 56.6MB. Free memory was 25.3MB in the beginning and 23.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,439 INFO L158 Benchmark]: Boogie Preprocessor took 15.75ms. Allocated memory is still 56.6MB. Free memory was 23.7MB in the beginning and 22.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,439 INFO L158 Benchmark]: RCFGBuilder took 325.50ms. Allocated memory is still 56.6MB. Free memory was 22.7MB in the beginning and 28.2MB in the end (delta: -5.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,440 INFO L158 Benchmark]: TraceAbstraction took 1175.34ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 27.8MB in the beginning and 30.4MB in the end (delta: -2.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,440 INFO L158 Benchmark]: Witness Printer took 46.50ms. Allocated memory is still 69.2MB. Free memory was 30.4MB in the beginning and 27.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 09:05:58,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.98ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 25.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.38ms. Allocated memory is still 56.6MB. Free memory was 25.3MB in the beginning and 23.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.75ms. Allocated memory is still 56.6MB. Free memory was 23.7MB in the beginning and 22.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.50ms. Allocated memory is still 56.6MB. Free memory was 22.7MB in the beginning and 28.2MB in the end (delta: -5.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1175.34ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 27.8MB in the beginning and 30.4MB in the end (delta: -2.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 46.50ms. Allocated memory is still 69.2MB. Free memory was 30.4MB in the beginning and 27.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 49]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1103.60ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.18ms, AutomataDifference: 384.68ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 47.99ms, InitialAbstractionConstructionTime: 7.68ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 107.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 98.35ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 28 mSolverCounterSat, 1.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 279.59ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.82ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 91 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 9.35ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 32.20ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.14ms SsaConstructionTime, 136.38ms SatisfiabilityAnalysisTime, 376.42ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant [2021-08-29 09:05:58,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,461 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,461 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,461 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,462 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((b == #memory_$Pointer$[p1][pp2] && #memory_$Pointer$[pp2][p1] == b) && pp2 == p1) && !(b == p1)) && !(p2 == a)) && !(pp2 == a)) && !(b == a)) && #memory_$Pointer$[pp2][pp2] == b) && !(b == p2)) && b == #memory_$Pointer$[p1][p1] - InvariantResult [Line: 18]: Loop Invariant [2021-08-29 09:05:58,462 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,463 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-08-29 09:05:58,463 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-08-29 09:05:58,463 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((#memory_$Pointer$[pp2][p1] == b && pp2 == p1) && !(b == p1)) && !(p2 == a)) && !(pp2 == a)) && !(b == a)) && !(b == p2)) && b == #memory_$Pointer$[p1][p1] RESULT: Ultimate proved your program to be correct! [2021-08-29 09:05:58,489 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...