./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/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_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg --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 d85bf43cff1a30e10d1e3bbf4675032df62c31f758d5324913387f5dfb870a68 .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:51:54,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:51:54,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:51:54,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:51:54,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:51:54,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:51:54,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:51:54,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:51:54,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:51:54,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:51:54,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:51:54,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:51:54,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:51:54,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:51:54,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:51:54,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:51:54,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:51:54,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:51:54,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:51:54,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:51:54,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:51:54,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:51:54,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:51:54,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:51:54,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:51:54,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:51:54,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:51:54,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:51:54,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:51:54,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:51:54,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:51:54,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:51:54,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:51:54,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:51:54,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:51:54,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:51:54,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:51:54,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:51:54,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:51:54,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:51:54,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:51:54,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:51:54,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:51:54,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:51:54,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:51:54,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:51:54,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:51:54,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:51:54,852 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:51:54,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:51:54,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:51:54,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:51:54,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:51:54,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:51:54,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:51:54,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:51:54,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:51:54,856 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:51:54,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:51:54,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:51:54,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:51:54,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:51:54,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:51:54,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:51:54,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:51:54,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:51:54,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:51:54,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:51:54,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:51:54,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:51:54,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:51:54,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:51:54,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:51:54,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:51:54,863 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_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d85bf43cff1a30e10d1e3bbf4675032df62c31f758d5324913387f5dfb870a68 [2021-10-28 09:51:55,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:51:55,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:51:55,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:51:55,254 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:51:55,255 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:51:55,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-10-28 09:51:55,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/data/e3858b16c/fc405fd5c61c4a1b8a6d013e6ee3fe36/FLAG6922f8d04 [2021-10-28 09:51:55,896 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:51:55,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-10-28 09:51:55,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/data/e3858b16c/fc405fd5c61c4a1b8a6d013e6ee3fe36/FLAG6922f8d04 [2021-10-28 09:51:56,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/data/e3858b16c/fc405fd5c61c4a1b8a6d013e6ee3fe36 [2021-10-28 09:51:56,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:51:56,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:51:56,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:56,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:51:56,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:51:56,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af0276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56, skipping insertion in model container [2021-10-28 09:51:56,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:51:56,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:51:56,500 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_24490a72-8211-4a6f-8ed7-11139bef074f/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-10-28 09:51:56,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:56,521 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:51:56,550 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_24490a72-8211-4a6f-8ed7-11139bef074f/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-10-28 09:51:56,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:56,564 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:51:56,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56 WrapperNode [2021-10-28 09:51:56,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:56,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:51:56,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:51:56,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:51:56,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:51:56,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:51:56,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:51:56,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:51:56,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:51:56,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:51:56,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:51:56,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:51:56,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (1/1) ... [2021-10-28 09:51:56,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:51:56,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:56,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:56,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:51:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:51:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:51:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:51:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:51:56,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:51:56,957 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 09:51:56,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:56 BoogieIcfgContainer [2021-10-28 09:51:56,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:51:56,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:51:56,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:51:56,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:51:56,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:51:56" (1/3) ... [2021-10-28 09:51:56,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536d5b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:51:56, skipping insertion in model container [2021-10-28 09:51:56,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:56" (2/3) ... [2021-10-28 09:51:56,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536d5b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:51:56, skipping insertion in model container [2021-10-28 09:51:56,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:56" (3/3) ... [2021-10-28 09:51:56,973 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-10-28 09:51:56,980 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:51:56,980 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:51:57,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:51:57,051 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:51:57,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:51:57,070 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) [2021-10-28 09:51:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 09:51:57,077 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:51:57,078 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:57,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:51:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2021-10-28 09:51:57,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:57,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30883493] [2021-10-28 09:51:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:57,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:57,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:57,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30883493] [2021-10-28 09:51:57,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30883493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:57,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:57,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:51:57,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144408134] [2021-10-28 09:51:57,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:51:57,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:57,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:51:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:51:57,665 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) [2021-10-28 09:51:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:57,940 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-28 09:51:57,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:51:57,943 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 [2021-10-28 09:51:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:51:57,964 INFO L225 Difference]: With dead ends: 29 [2021-10-28 09:51:57,964 INFO L226 Difference]: Without dead ends: 10 [2021-10-28 09:51:57,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:51:57,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-28 09:51:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 09:51:58,001 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) [2021-10-28 09:51:58,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-28 09:51:58,003 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-10-28 09:51:58,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:51:58,004 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-28 09:51:58,004 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) [2021-10-28 09:51:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-28 09:51:58,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 09:51:58,005 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:51:58,005 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:58,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:51:58,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:51:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2021-10-28 09:51:58,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:58,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194486270] [2021-10-28 09:51:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:58,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:58,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:58,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194486270] [2021-10-28 09:51:58,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194486270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:58,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334221566] [2021-10-28 09:51:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:58,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:58,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:58,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:58,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:51:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:58,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:51:58,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:58,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334221566] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:58,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:51:58,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 09:51:58,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366814350] [2021-10-28 09:51:58,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:51:58,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:58,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:51:58,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:51:58,461 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) [2021-10-28 09:51:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:58,612 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-28 09:51:58,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:51:58,612 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 [2021-10-28 09:51:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:51:58,613 INFO L225 Difference]: With dead ends: 13 [2021-10-28 09:51:58,614 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:51:58,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:51:58,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:51:58,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:51:58,618 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) [2021-10-28 09:51:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:51:58,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-28 09:51:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:51:58,620 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:51:58,621 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) [2021-10-28 09:51:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:51:58,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:51:58,625 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:51:58,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:58,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-28 09:51:58,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:51:58,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:51:58,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:51:58,878 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:51:58,879 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 68) no Hoare annotation was computed. [2021-10-28 09:51:58,879 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 69) no Hoare annotation was computed. [2021-10-28 09:51:58,879 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 66) no Hoare annotation was computed. [2021-10-28 09:51:58,880 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))) [2021-10-28 09:51:58,880 INFO L860 garLoopResultBuilder]: At program point L65(lines 13 70) the Hoare annotation is: true [2021-10-28 09:51:58,880 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:51:58,880 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:51:58,881 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:51:58,881 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2021-10-28 09:51:58,881 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-28 09:51:58,881 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 60) no Hoare annotation was computed. [2021-10-28 09:51:58,885 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:51:58,887 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:51:58,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:51:58 BoogieIcfgContainer [2021-10-28 09:51:58,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:51:58,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:51:58,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:51:58,904 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:51:58,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:56" (3/4) ... [2021-10-28 09:51:58,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:51:58,922 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 09:51:58,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:51:58,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:51:58,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:51:58,972 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:51:58,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:51:58,975 INFO L168 Benchmark]: Toolchain (without parser) took 2716.88 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 54.1 MB in the beginning and 64.2 MB in the end (delta: -10.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:58,975 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:58,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.82 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 53.9 MB in the beginning and 97.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:58,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 96.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:58,978 INFO L168 Benchmark]: Boogie Preprocessor took 33.57 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 95.5 MB in the end (delta: 749.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:58,979 INFO L168 Benchmark]: RCFGBuilder took 317.69 ms. Allocated memory is still 121.6 MB. Free memory was 95.2 MB in the beginning and 86.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:58,979 INFO L168 Benchmark]: TraceAbstraction took 1939.85 ms. Allocated memory is still 121.6 MB. Free memory was 85.3 MB in the beginning and 66.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:58,980 INFO L168 Benchmark]: Witness Printer took 69.22 ms. Allocated memory is still 121.6 MB. Free memory was 66.8 MB in the beginning and 64.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:58,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.82 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 53.9 MB in the beginning and 97.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 96.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.57 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 95.5 MB in the end (delta: 749.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 317.69 ms. Allocated memory is still 121.6 MB. Free memory was 95.2 MB in the beginning and 86.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1939.85 ms. Allocated memory is still 121.6 MB. Free memory was 85.3 MB in the beginning and 66.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Witness Printer took 69.22 ms. Allocated memory is still 121.6 MB. Free memory was 66.8 MB in the beginning and 64.2 MB in the end (delta: 2.6 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 29 SDslu, 32 SDs, 0 SdLazy, 52 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s 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! [2021-10-28 09:51:59,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24490a72-8211-4a6f-8ed7-11139bef074f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...