./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y --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 1130d3df8d11f3be805af96558350a1bd8faf89323cc035b32267e4a54793a8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:14:25,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:14:25,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:14:25,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:14:25,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:14:25,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:14:25,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:14:25,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:14:25,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:14:25,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:14:25,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:14:25,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:14:25,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:14:25,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:14:25,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:14:25,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:14:25,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:14:25,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:14:25,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:14:25,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:14:25,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:14:25,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:14:25,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:14:25,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:14:25,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:14:25,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:14:25,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:14:25,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:14:25,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:14:25,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:14:25,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:14:25,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:14:25,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:14:25,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:14:25,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:14:25,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:14:25,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:14:25,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:14:25,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:14:25,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:14:25,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:14:25,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:14:25,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:14:25,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:14:25,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:14:25,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:14:25,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:14:25,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:14:25,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:14:25,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:14:25,746 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:14:25,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:14:25,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:14:25,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:14:25,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:14:25,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:14:25,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:14:25,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:14:25,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:14:25,750 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:14:25,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:14:25,750 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:14:25,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:14:25,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:14:25,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:14:25,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:14:25,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:14:25,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:14:25,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:14:25,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:14:25,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:14:25,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:14:25,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:14:25,756 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:14:25,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:14:25,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:14:25,757 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_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1130d3df8d11f3be805af96558350a1bd8faf89323cc035b32267e4a54793a8c [2021-11-13 18:14:26,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:14:26,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:14:26,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:14:26,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:14:26,212 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:14:26,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2021-11-13 18:14:26,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/data/3774a1b03/d9dfafeb27ae4cce90d929081fe01395/FLAG23602e605 [2021-11-13 18:14:26,937 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:14:26,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2021-11-13 18:14:26,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/data/3774a1b03/d9dfafeb27ae4cce90d929081fe01395/FLAG23602e605 [2021-11-13 18:14:27,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/data/3774a1b03/d9dfafeb27ae4cce90d929081fe01395 [2021-11-13 18:14:27,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:14:27,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:14:27,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:14:27,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:14:27,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:14:27,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51594aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27, skipping insertion in model container [2021-11-13 18:14:27,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:14:27,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:14:27,522 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_65dd9e4e-8a75-446c-9025-760de0a5f7db/sv-benchmarks/c/loop-zilu/benchmark25_linear.i[868,881] [2021-11-13 18:14:27,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:14:27,545 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:14:27,562 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_65dd9e4e-8a75-446c-9025-760de0a5f7db/sv-benchmarks/c/loop-zilu/benchmark25_linear.i[868,881] [2021-11-13 18:14:27,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:14:27,583 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:14:27,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27 WrapperNode [2021-11-13 18:14:27,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:14:27,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:14:27,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:14:27,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:14:27,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:14:27,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:14:27,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:14:27,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:14:27,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:14:27,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:14:27,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:14:27,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:14:27,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (1/1) ... [2021-11-13 18:14:27,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:14:27,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:14:27,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:14:27,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:14:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:14:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:14:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:14:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:14:28,069 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:14:28,072 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:14:28,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:14:28 BoogieIcfgContainer [2021-11-13 18:14:28,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:14:28,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:14:28,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:14:28,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:14:28,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:14:27" (1/3) ... [2021-11-13 18:14:28,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798e8778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:14:28, skipping insertion in model container [2021-11-13 18:14:28,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:14:27" (2/3) ... [2021-11-13 18:14:28,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798e8778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:14:28, skipping insertion in model container [2021-11-13 18:14:28,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:14:28" (3/3) ... [2021-11-13 18:14:28,102 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark25_linear.i [2021-11-13 18:14:28,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:14:28,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:14:28,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:14:28,185 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 [2021-11-13 18:14:28,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:14:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-11-13 18:14:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 18:14:28,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:14:28,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:14:28,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:14:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:14:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1807089479, now seen corresponding path program 1 times [2021-11-13 18:14:28,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:14:28,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281573337] [2021-11-13 18:14:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:14:28,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:14:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:14:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:14:28,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:14:28,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281573337] [2021-11-13 18:14:28,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281573337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:14:28,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:14:28,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:14:28,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063377622] [2021-11-13 18:14:28,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:14:28,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:14:28,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:14:28,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:14:28,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:14:28,473 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-13 18:14:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:14:28,491 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-11-13 18:14:28,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:14:28,494 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-13 18:14:28,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:14:28,504 INFO L225 Difference]: With dead ends: 20 [2021-11-13 18:14:28,504 INFO L226 Difference]: Without dead ends: 8 [2021-11-13 18:14:28,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:14:28,513 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:14:28,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:14:28,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-13 18:14:28,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-13 18:14:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2021-11-13 18:14:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-13 18:14:28,553 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2021-11-13 18:14:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:14:28,554 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-13 18:14:28,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-13 18:14:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-13 18:14:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 18:14:28,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:14:28,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:14:28,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:14:28,557 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:14:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:14:28,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1806970315, now seen corresponding path program 1 times [2021-11-13 18:14:28,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:14:28,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664441317] [2021-11-13 18:14:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:14:28,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:14:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:14:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:14:28,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:14:28,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664441317] [2021-11-13 18:14:28,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664441317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:14:28,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:14:28,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:14:28,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023475451] [2021-11-13 18:14:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:14:28,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:14:28,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:14:28,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:14:28,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:14:28,621 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-13 18:14:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:14:28,636 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-11-13 18:14:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:14:28,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-13 18:14:28,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:14:28,638 INFO L225 Difference]: With dead ends: 13 [2021-11-13 18:14:28,638 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 18:14:28,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:14:28,641 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.22ms IncrementalHoareTripleChecker+Time [2021-11-13 18:14:28,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.62ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 10.22ms Time] [2021-11-13 18:14:28,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 18:14:28,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 18:14:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-13 18:14:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-13 18:14:28,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-11-13 18:14:28,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:14:28,649 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-13 18:14:28,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-13 18:14:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-13 18:14:28,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:14:28,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:14:28,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:14:28,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:14:28,651 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:14:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:14:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash 183170323, now seen corresponding path program 1 times [2021-11-13 18:14:28,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:14:28,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444817541] [2021-11-13 18:14:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:14:28,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:14:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:14:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:14:28,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:14:28,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444817541] [2021-11-13 18:14:28,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444817541] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:14:28,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477532287] [2021-11-13 18:14:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:14:28,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:14:28,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:14:28,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:14:28,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:14:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:14:28,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:14:28,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:14:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:14:28,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:14:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:14:29,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477532287] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:14:29,041 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:14:29,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-13 18:14:29,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955165270] [2021-11-13 18:14:29,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:14:29,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:14:29,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:14:29,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:14:29,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:14:29,052 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:14:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:14:29,087 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-11-13 18:14:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:14:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 18:14:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:14:29,090 INFO L225 Difference]: With dead ends: 16 [2021-11-13 18:14:29,090 INFO L226 Difference]: Without dead ends: 12 [2021-11-13 18:14:29,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:14:29,096 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.92ms IncrementalHoareTripleChecker+Time [2021-11-13 18:14:29,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 22.92ms Time] [2021-11-13 18:14:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-13 18:14:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-13 18:14:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-11-13 18:14:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-13 18:14:29,127 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2021-11-13 18:14:29,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:14:29,127 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-11-13 18:14:29,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:14:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-13 18:14:29,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 18:14:29,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:14:29,129 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:14:29,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:14:29,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:14:29,330 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:14:29,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:14:29,331 INFO L85 PathProgramCache]: Analyzing trace with hash -422592565, now seen corresponding path program 2 times [2021-11-13 18:14:29,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:14:29,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625196644] [2021-11-13 18:14:29,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:14:29,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:14:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:14:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 18:14:29,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:14:29,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625196644] [2021-11-13 18:14:29,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625196644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:14:29,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:14:29,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:14:29,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140415184] [2021-11-13 18:14:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:14:29,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:14:29,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:14:29,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:14:29,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:14:29,515 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-13 18:14:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:14:29,553 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-11-13 18:14:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:14:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2021-11-13 18:14:29,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:14:29,556 INFO L225 Difference]: With dead ends: 12 [2021-11-13 18:14:29,556 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:14:29,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:14:29,559 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.52ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:14:29,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.52ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 21.53ms Time] [2021-11-13 18:14:29,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:14:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:14:29,567 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) [2021-11-13 18:14:29,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:14:29,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-13 18:14:29,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:14:29,569 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:14:29,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-13 18:14:29,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:14:29,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:14:29,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:14:29,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:14:29,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:14:29,605 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:14:29,605 INFO L858 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-11-13 18:14:29,605 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-11-13 18:14:29,606 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:14:29,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:14:29,609 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:14:29,609 INFO L861 garLoopResultBuilder]: At program point L26(lines 19 27) the Hoare annotation is: true [2021-11-13 18:14:29,610 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-11-13 18:14:29,610 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 24) the Hoare annotation is: (<= |ULTIMATE.start_main_~x~0#1| 10) [2021-11-13 18:14:29,610 INFO L858 garLoopResultBuilder]: For program point L22-3(lines 22 24) no Hoare annotation was computed. [2021-11-13 18:14:29,611 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-11-13 18:14:29,611 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-11-13 18:14:29,619 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-11-13 18:14:29,621 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:14:29,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:14:29 BoogieIcfgContainer [2021-11-13 18:14:29,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:14:29,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:14:29,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:14:29,645 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:14:29,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:14:28" (3/4) ... [2021-11-13 18:14:29,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:14:29,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-13 18:14:29,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 18:14:29,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:14:29,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:14:29,718 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:14:29,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:14:29,720 INFO L158 Benchmark]: Toolchain (without parser) took 2444.59ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 82.7MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:14:29,722 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:14:29,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.58ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 92.7MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:14:29,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.12ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 91.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:14:29,728 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 90.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:14:29,728 INFO L158 Benchmark]: RCFGBuilder took 425.15ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 81.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:14:29,729 INFO L158 Benchmark]: TraceAbstraction took 1560.53ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 84.7MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:14:29,730 INFO L158 Benchmark]: Witness Printer took 75.15ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:14:29,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.58ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 92.7MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.12ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 91.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 90.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.15ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 81.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1560.53ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 84.7MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.15ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 54.67ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 40.83ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 30 mSDtfsCounter, 21 mSolverCounterSat, 2.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 10/13 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 10 RESULT: Ultimate proved your program to be correct! [2021-11-13 18:14:29,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65dd9e4e-8a75-446c-9025-760de0a5f7db/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE