./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt --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 cbba3ede4e91b7384b0dde986cc9a2a86c4a62c3 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:44:24,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:44:24,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:44:24,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:44:24,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:44:24,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:44:24,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:44:24,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:44:24,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:44:24,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:44:24,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:44:24,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:44:24,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:44:24,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:44:24,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:44:24,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:44:24,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:44:24,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:44:24,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:44:24,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:44:24,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:44:24,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:44:24,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:44:24,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:44:24,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:44:24,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:44:24,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:44:24,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:44:24,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:44:24,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:44:24,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:44:24,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:44:24,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:44:24,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:44:24,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:44:24,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:44:24,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:44:24,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:44:24,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:44:24,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:44:24,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:44:24,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:44:24,451 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:44:24,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:44:24,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:44:24,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:44:24,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:44:24,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:44:24,460 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:44:24,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:44:24,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:44:24,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:44:24,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:44:24,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:44:24,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:44:24,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:44:24,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:44:24,463 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:44:24,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:44:24,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:44:24,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:44:24,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:44:24,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:44:24,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:44:24,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:44:24,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:44:24,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:44:24,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:44:24,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:44:24,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:44:24,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:44:24,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:44:24,468 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbba3ede4e91b7384b0dde986cc9a2a86c4a62c3 [2021-10-13 00:44:24,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:44:24,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:44:24,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:44:24,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:44:24,759 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:44:24,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-10-13 00:44:24,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/data/ede0fb80a/3f7cd400006948d382e797dd8b7df1af/FLAGc19843f0d [2021-10-13 00:44:25,336 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:44:25,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-10-13 00:44:25,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/data/ede0fb80a/3f7cd400006948d382e797dd8b7df1af/FLAGc19843f0d [2021-10-13 00:44:25,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/data/ede0fb80a/3f7cd400006948d382e797dd8b7df1af [2021-10-13 00:44:25,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:44:25,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:44:25,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:44:25,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:44:25,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:44:25,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:25,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d946eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25, skipping insertion in model container [2021-10-13 00:44:25,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:25,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:44:25,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:44:25,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-10-13 00:44:25,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:44:25,922 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:44:25,937 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-10-13 00:44:25,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:44:25,951 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:44:25,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25 WrapperNode [2021-10-13 00:44:25,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:44:25,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:44:25,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:44:25,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:44:25,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:25,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:25,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:44:25,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:44:25,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:44:25,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:44:26,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:44:26,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:44:26,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:44:26,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:44:26,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (1/1) ... [2021-10-13 00:44:26,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:44:26,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:44:26,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:44:26,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:44:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:44:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:44:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:44:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:44:26,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:44:26,299 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:44:26,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:26 BoogieIcfgContainer [2021-10-13 00:44:26,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:44:26,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:44:26,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:44:26,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:44:26,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:44:25" (1/3) ... [2021-10-13 00:44:26,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8b3daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:26, skipping insertion in model container [2021-10-13 00:44:26,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:25" (2/3) ... [2021-10-13 00:44:26,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8b3daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:26, skipping insertion in model container [2021-10-13 00:44:26,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:26" (3/3) ... [2021-10-13 00:44:26,310 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-10-13 00:44:26,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:44:26,316 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:44:26,362 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:44:26,369 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 [2021-10-13 00:44:26,370 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:44:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-10-13 00:44:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:44:26,389 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:26,390 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:44:26,390 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:44:26,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:26,396 INFO L82 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2021-10-13 00:44:26,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:44:26,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964577923] [2021-10-13 00:44:26,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:26,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:44:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:26,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:44:26,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964577923] [2021-10-13 00:44:26,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964577923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:26,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:44:26,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:44:26,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221698624] [2021-10-13 00:44:26,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:44:26,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:44:26,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:44:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:44:26,769 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 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 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2021-10-13 00:44:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:26,910 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-13 00:44:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:44:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2021-10-13 00:44:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:26,921 INFO L225 Difference]: With dead ends: 29 [2021-10-13 00:44:26,922 INFO L226 Difference]: Without dead ends: 10 [2021-10-13 00:44:26,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 134.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:44:26,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-13 00:44:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-13 00:44:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-10-13 00:44:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 00:44:26,958 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-10-13 00:44:26,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:26,960 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 00:44:26,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2021-10-13 00:44:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 00:44:26,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:44:26,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:44:26,961 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:44:26,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:44:26,964 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:44:26,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:44:26,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2021-10-13 00:44:26,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:44:26,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347728368] [2021-10-13 00:44:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:26,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:44:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:27,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:44:27,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347728368] [2021-10-13 00:44:27,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347728368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:44:27,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799454479] [2021-10-13 00:44:27,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:44:27,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:44:27,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:44:27,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:44:27,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:44:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:44:27,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 00:44:27,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:44:27,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799454479] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:44:27,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:44:27,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 00:44:27,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623681546] [2021-10-13 00:44:27,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:44:27,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:44:27,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:44:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:44:27,469 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-10-13 00:44:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:27,639 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-13 00:44:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:44:27,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 9 [2021-10-13 00:44:27,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:27,640 INFO L225 Difference]: With dead ends: 13 [2021-10-13 00:44:27,640 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:44:27,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 179.5ms TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:44:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:44:27,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:44:27,643 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) [2021-10-13 00:44:27,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:44:27,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-13 00:44:27,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:27,644 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:44:27,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-10-13 00:44:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:44:27,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:44:27,647 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:44:27,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:44:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:44:27,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:44:27,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:44:27,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:44:27,903 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:44:27,903 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 68) no Hoare annotation was computed. [2021-10-13 00:44:27,904 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 69) no Hoare annotation was computed. [2021-10-13 00:44:27,904 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 66) no Hoare annotation was computed. [2021-10-13 00:44:27,906 INFO L853 garLoopResultBuilder]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__j~0)) (.cse0 (+ ULTIMATE.start_main_~main__y~0 ULTIMATE.start_main_~main__i~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-10-13 00:44:27,906 INFO L860 garLoopResultBuilder]: At program point L65(lines 13 70) the Hoare annotation is: true [2021-10-13 00:44:27,907 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:44:27,907 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:44:27,910 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:44:27,911 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2021-10-13 00:44:27,911 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 00:44:27,911 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 60) no Hoare annotation was computed. [2021-10-13 00:44:27,915 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:44:27,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:44:27 BoogieIcfgContainer [2021-10-13 00:44:27,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:44:27,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:44:27,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:44:27,935 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:44:27,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:26" (3/4) ... [2021-10-13 00:44:27,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:44:27,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:44:27,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:44:27,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:44:27,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:44:28,004 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:44:28,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:44:28,006 INFO L168 Benchmark]: Toolchain (without parser) took 2297.45 ms. Allocated memory is still 123.7 MB. Free memory was 86.1 MB in the beginning and 90.3 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:44:28,007 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 123.7 MB. Free memory was 102.5 MB in the beginning and 102.4 MB in the end (delta: 60.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:44:28,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.55 ms. Allocated memory is still 123.7 MB. Free memory was 86.0 MB in the beginning and 98.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:28,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.71 ms. Allocated memory is still 123.7 MB. Free memory was 98.2 MB in the beginning and 96.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:28,008 INFO L168 Benchmark]: Boogie Preprocessor took 40.33 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 95.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:28,008 INFO L168 Benchmark]: RCFGBuilder took 265.36 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 86.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:28,009 INFO L168 Benchmark]: TraceAbstraction took 1628.72 ms. Allocated memory is still 123.7 MB. Free memory was 86.0 MB in the beginning and 93.1 MB in the end (delta: -7.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:44:28,009 INFO L168 Benchmark]: Witness Printer took 70.11 ms. Allocated memory is still 123.7 MB. Free memory was 93.1 MB in the beginning and 90.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:28,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 123.7 MB. Free memory was 102.5 MB in the beginning and 102.4 MB in the end (delta: 60.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.55 ms. Allocated memory is still 123.7 MB. Free memory was 86.0 MB in the beginning and 98.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.71 ms. Allocated memory is still 123.7 MB. Free memory was 98.2 MB in the beginning and 96.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.33 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 95.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 265.36 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 86.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1628.72 ms. Allocated memory is still 123.7 MB. Free memory was 86.0 MB in the beginning and 93.1 MB in the end (delta: -7.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 70.11 ms. Allocated memory is still 123.7 MB. Free memory was 93.1 MB in the beginning and 90.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 53]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1554.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.4ms, AutomataDifference: 347.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 40.9ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 29 SDslu, 32 SDs, 0 SdLazy, 52 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 313.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 14.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 20.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 30.1ms SsaConstructionTime, 125.1ms SatisfiabilityAnalysisTime, 542.4ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 5 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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: 30]: Loop Invariant Derived loop invariant: main__y + main__i <= main__x + main__j && main__x + main__j <= main__y + main__i - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:44:28,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abb47593-7d1f-4930-87f0-e80f244c1046/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...