./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/mcmillan2006.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8 --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 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:27:18,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:27:18,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:27:18,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:27:18,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:27:18,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:27:18,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:27:18,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:27:18,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:27:18,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:27:18,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:27:18,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:27:18,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:27:18,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:27:18,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:27:18,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:27:18,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:27:18,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:27:18,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:27:18,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:27:18,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:27:18,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:27:18,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:27:18,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:27:18,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:27:18,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:27:18,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:27:18,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:27:18,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:27:18,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:27:18,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:27:18,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:27:18,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:27:18,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:27:18,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:27:18,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:27:18,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:27:18,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:27:18,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:27:18,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:27:18,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:27:18,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:27:18,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:27:18,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:27:18,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:27:18,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:27:18,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:27:18,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:27:18,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:27:18,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:27:18,793 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:27:18,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:27:18,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:27:18,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:27:18,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:27:18,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:27:18,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:27:18,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:27:18,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:27:18,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:27:18,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:27:18,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:27:18,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:27:18,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:27:18,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:27:18,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:27:18,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:27:18,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:27:18,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:27:18,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:27:18,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:27:18,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:27:18,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:27:18,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:27:18,797 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:27:18,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:27:18,797 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:27:18,797 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be [2022-12-13 16:27:18,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:27:19,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:27:19,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:27:19,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:27:19,005 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:27:19,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-lit/mcmillan2006.i [2022-12-13 16:27:21,646 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:27:21,809 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:27:21,810 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/sv-benchmarks/c/loop-lit/mcmillan2006.i [2022-12-13 16:27:21,814 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/data/ad9df002e/766fd9dead9248268c4a874ddf698f10/FLAGde667000a [2022-12-13 16:27:22,222 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/data/ad9df002e/766fd9dead9248268c4a874ddf698f10 [2022-12-13 16:27:22,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:27:22,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:27:22,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:27:22,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:27:22,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:27:22,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646d0e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22, skipping insertion in model container [2022-12-13 16:27:22,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:27:22,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:27:22,343 WARN L237 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_f4a49544-2091-4638-9d72-ce318536a954/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2022-12-13 16:27:22,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:27:22,357 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:27:22,366 WARN L237 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_f4a49544-2091-4638-9d72-ce318536a954/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2022-12-13 16:27:22,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:27:22,378 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:27:22,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22 WrapperNode [2022-12-13 16:27:22,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:27:22,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:27:22,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:27:22,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:27:22,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,404 INFO L138 Inliner]: procedures = 18, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-12-13 16:27:22,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:27:22,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:27:22,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:27:22,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:27:22,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:27:22,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:27:22,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:27:22,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:27:22,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (1/1) ... [2022-12-13 16:27:22,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:27:22,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:27:22,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:27:22,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:27:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:27:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:27:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:27:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 16:27:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:27:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:27:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:27:22,542 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:27:22,543 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:27:22,627 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:27:22,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:27:22,632 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 16:27:22,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:27:22 BoogieIcfgContainer [2022-12-13 16:27:22,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:27:22,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:27:22,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:27:22,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:27:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:27:22" (1/3) ... [2022-12-13 16:27:22,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aabf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:27:22, skipping insertion in model container [2022-12-13 16:27:22,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:27:22" (2/3) ... [2022-12-13 16:27:22,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aabf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:27:22, skipping insertion in model container [2022-12-13 16:27:22,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:27:22" (3/3) ... [2022-12-13 16:27:22,641 INFO L112 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2022-12-13 16:27:22,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:27:22,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:27:22,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:27:22,698 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2420fcea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:27:22,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:27:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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) [2022-12-13 16:27:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 16:27:22,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:22,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:22,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash 186158361, now seen corresponding path program 1 times [2022-12-13 16:27:22,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:22,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668064442] [2022-12-13 16:27:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:22,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:22,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:22,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:22,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668064442] [2022-12-13 16:27:22,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668064442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:27:22,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:27:22,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:27:22,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501297578] [2022-12-13 16:27:22,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:27:22,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:27:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:22,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:27:22,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:27:22,861 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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 4.0) internal successors, (8), 2 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) [2022-12-13 16:27:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:22,873 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2022-12-13 16:27:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:27:22,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2022-12-13 16:27:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:22,880 INFO L225 Difference]: With dead ends: 27 [2022-12-13 16:27:22,880 INFO L226 Difference]: Without dead ends: 12 [2022-12-13 16:27:22,882 INFO L412 NwaCegarLoop]: 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 [2022-12-13 16:27:22,885 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:22,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:27:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-13 16:27:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-13 16:27:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-12-13 16:27:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-13 16:27:22,912 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 8 [2022-12-13 16:27:22,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:22,912 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-13 16:27:22,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-12-13 16:27:22,913 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-13 16:27:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 16:27:22,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:22,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:22,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:27:22,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash 180617235, now seen corresponding path program 1 times [2022-12-13 16:27:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:22,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925987277] [2022-12-13 16:27:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:22,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:23,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:23,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:23,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925987277] [2022-12-13 16:27:23,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925987277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:27:23,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:27:23,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:27:23,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841017321] [2022-12-13 16:27:23,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:27:23,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:27:23,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:27:23,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:27:23,021 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. 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) [2022-12-13 16:27:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:23,067 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-12-13 16:27:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:27:23,068 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 [2022-12-13 16:27:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:23,068 INFO L225 Difference]: With dead ends: 22 [2022-12-13 16:27:23,068 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:27:23,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:27:23,070 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:23,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:27:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:27:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-12-13 16:27:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 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) [2022-12-13 16:27:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-13 16:27:23,075 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2022-12-13 16:27:23,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:23,075 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-13 16:27:23,075 INFO L496 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) [2022-12-13 16:27:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-13 16:27:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 16:27:23,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:23,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:23,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:27:23,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:23,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:23,077 INFO L85 PathProgramCache]: Analyzing trace with hash -875113359, now seen corresponding path program 1 times [2022-12-13 16:27:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:23,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379228770] [2022-12-13 16:27:23,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:23,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:23,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:23,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379228770] [2022-12-13 16:27:23,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379228770] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:27:23,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609472885] [2022-12-13 16:27:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:23,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:23,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:27:23,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:27:23,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:27:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:23,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 16:27:23,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:27:23,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-12-13 16:27:23,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:23,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:27:23,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-12-13 16:27:23,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-12-13 16:27:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:23,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609472885] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:27:23,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:27:23,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2022-12-13 16:27:23,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196456149] [2022-12-13 16:27:23,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:27:23,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:27:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:27:23,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:27:23,667 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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) [2022-12-13 16:27:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:23,743 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-12-13 16:27:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:27:23,743 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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 10 [2022-12-13 16:27:23,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:23,744 INFO L225 Difference]: With dead ends: 21 [2022-12-13 16:27:23,744 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 16:27:23,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:27:23,745 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:23,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 37 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:27:23,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 16:27:23,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2022-12-13 16:27:23,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 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) [2022-12-13 16:27:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-13 16:27:23,750 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-12-13 16:27:23,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:23,751 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-13 16:27:23,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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) [2022-12-13 16:27:23,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-13 16:27:23,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 16:27:23,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:23,752 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:23,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:27:23,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:23,953 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:23,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:23,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1418361721, now seen corresponding path program 1 times [2022-12-13 16:27:23,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:23,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839537621] [2022-12-13 16:27:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:23,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:24,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:24,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839537621] [2022-12-13 16:27:24,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839537621] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:27:24,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972211016] [2022-12-13 16:27:24,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:24,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:24,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:27:24,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:27:24,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:27:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:24,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:27:24,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:27:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:24,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:27:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:24,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972211016] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:27:24,255 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:27:24,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-12-13 16:27:24,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013985994] [2022-12-13 16:27:24,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:27:24,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:27:24,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:24,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:27:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:27:24,257 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-12-13 16:27:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:24,303 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-12-13 16:27:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:27:24,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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 14 [2022-12-13 16:27:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:24,304 INFO L225 Difference]: With dead ends: 30 [2022-12-13 16:27:24,304 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 16:27:24,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:27:24,305 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:24,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 39 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:27:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 16:27:24,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-12-13 16:27:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-12-13 16:27:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-12-13 16:27:24,310 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2022-12-13 16:27:24,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:24,311 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-12-13 16:27:24,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-12-13 16:27:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-12-13 16:27:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 16:27:24,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:24,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:24,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:27:24,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:24,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash -324855195, now seen corresponding path program 2 times [2022-12-13 16:27:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:24,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418602707] [2022-12-13 16:27:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:24,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:24,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418602707] [2022-12-13 16:27:24,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418602707] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:27:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287599067] [2022-12-13 16:27:24,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:27:24,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:24,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:27:24,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:27:24,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:27:24,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:27:24,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:27:24,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 16:27:24,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:27:24,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 16:27:24,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:27:24,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 16:27:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:25,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:27:25,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2022-12-13 16:27:25,161 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 16:27:25,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 63 [2022-12-13 16:27:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:25,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287599067] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:27:25,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:27:25,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 24 [2022-12-13 16:27:25,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334204139] [2022-12-13 16:27:25,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:27:25,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 16:27:25,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 16:27:25,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:27:25,185 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 24 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 24 states have internal predecessors, (40), 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) [2022-12-13 16:27:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:25,337 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-12-13 16:27:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 16:27:25,337 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 24 states have internal predecessors, (40), 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 16 [2022-12-13 16:27:25,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:25,338 INFO L225 Difference]: With dead ends: 27 [2022-12-13 16:27:25,338 INFO L226 Difference]: Without dead ends: 25 [2022-12-13 16:27:25,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2022-12-13 16:27:25,339 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 40 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:25,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 59 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:27:25,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-13 16:27:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2022-12-13 16:27:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-12-13 16:27:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-12-13 16:27:25,346 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2022-12-13 16:27:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:25,346 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-12-13 16:27:25,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 24 states have internal predecessors, (40), 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) [2022-12-13 16:27:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-12-13 16:27:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 16:27:25,347 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:25,347 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:25,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 16:27:25,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:25,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1610985595, now seen corresponding path program 3 times [2022-12-13 16:27:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:25,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711196481] [2022-12-13 16:27:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:25,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:25,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:25,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711196481] [2022-12-13 16:27:25,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711196481] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:27:25,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008115908] [2022-12-13 16:27:25,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:27:25,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:25,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:27:25,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:27:25,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:27:25,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 16:27:25,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:27:25,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 16:27:25,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:27:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:25,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:27:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:25,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008115908] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:27:25,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:27:25,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-12-13 16:27:25,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431647483] [2022-12-13 16:27:25,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:27:25,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 16:27:25,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:25,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 16:27:25,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:27:25,838 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2022-12-13 16:27:25,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:25,905 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2022-12-13 16:27:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:27:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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 20 [2022-12-13 16:27:25,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:25,906 INFO L225 Difference]: With dead ends: 40 [2022-12-13 16:27:25,906 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 16:27:25,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-12-13 16:27:25,907 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:25,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 61 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:27:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 16:27:25,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-12-13 16:27:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 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) [2022-12-13 16:27:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-12-13 16:27:25,913 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 20 [2022-12-13 16:27:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:25,913 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-12-13 16:27:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2022-12-13 16:27:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-12-13 16:27:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 16:27:25,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:25,914 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:27:25,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 16:27:26,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:26,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:27:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 731310041, now seen corresponding path program 4 times [2022-12-13 16:27:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:26,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382117576] [2022-12-13 16:27:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:26,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:26,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382117576] [2022-12-13 16:27:26,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382117576] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:27:26,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521357580] [2022-12-13 16:27:26,389 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 16:27:26,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:27:26,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:27:26,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:27:26,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 16:27:26,435 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 16:27:26,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:27:26,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 16:27:26,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:27:26,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 16:27:26,730 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-12-13 16:27:26,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 23 [2022-12-13 16:27:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:26,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:27:27,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-12-13 16:27:27,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 16:27:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:27:27,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521357580] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:27:27,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:27:27,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 27 [2022-12-13 16:27:27,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291048860] [2022-12-13 16:27:27,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:27:27,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 16:27:27,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:27,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 16:27:27,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:27:27,057 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 27 states, 27 states have (on average 2.0) internal successors, (54), 27 states have internal predecessors, (54), 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) [2022-12-13 16:27:27,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:27,902 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-12-13 16:27:27,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 16:27:27,902 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.0) internal successors, (54), 27 states have internal predecessors, (54), 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 22 [2022-12-13 16:27:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:27,903 INFO L225 Difference]: With dead ends: 43 [2022-12-13 16:27:27,903 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 16:27:27,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=399, Invalid=2151, Unknown=0, NotChecked=0, Total=2550 [2022-12-13 16:27:27,905 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 113 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:27,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 61 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:27:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 16:27:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 16:27:27,906 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) [2022-12-13 16:27:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 16:27:27,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-12-13 16:27:27,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:27,906 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 16:27:27,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.0) internal successors, (54), 27 states have internal predecessors, (54), 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) [2022-12-13 16:27:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 16:27:27,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 16:27:27,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 16:27:27,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 16:27:28,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 16:27:28,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 16:27:29,261 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 16:27:29,261 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2022-12-13 16:27:29,262 INFO L895 garLoopResultBuilder]: At program point L31-3(line 31) the Hoare annotation is: (let ((.cse15 (+ (* |ULTIMATE.start_main_~i~1#1| 4) |ULTIMATE.start_main_~x~0#1.offset|)) (.cse14 (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse12 (<= |ULTIMATE.start_main_~n~0#1| 2)) (.cse2 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1)) (.cse13 (<= |ULTIMATE.start_main_~i~0#1| 2)) (.cse5 (= (select .cse14 (+ 8 |ULTIMATE.start_main_~x~0#1.offset|)) 0)) (.cse0 (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (< |ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~1#1_21| 1)) (< |v_ULTIMATE.start_main_~i~1#1_21| 2) (= (select .cse14 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0)))) (.cse8 (= (select .cse14 .cse15) 0)) (.cse4 (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_21| 2) (not (< |v_ULTIMATE.start_main_~i~1#1_21| |ULTIMATE.start_main_~n~0#1|)) (= (select .cse14 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0)))) (.cse9 (= .cse15 0)) (.cse7 (= (select .cse14 (+ |ULTIMATE.start_main_~x~0#1.offset| 4)) 0)) (.cse1 (= 0 (select .cse14 0))) (.cse3 (= |ULTIMATE.start_main_~x~0#1.offset| 0)) (.cse6 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) (.cse10 (<= |ULTIMATE.start_main_~n~0#1| 1)) (.cse11 (<= |ULTIMATE.start_main_~i~0#1| 1))) (or (and (not (< |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_main_~n~0#1|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse3 .cse9 .cse10 .cse11) (and .cse12 .cse1 (<= 2 |ULTIMATE.start_main_~i~1#1|) .cse13 .cse3 .cse6 .cse7) (and .cse12 .cse1 .cse2 .cse13 (= |ULTIMATE.start_main_~i~1#1| 1) .cse3 .cse6 .cse7) (and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~n~0#1| 0)) (and .cse0 .cse1 .cse8 (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (not (<= (+ |ULTIMATE.start_main_~i~1#1| 1) |v_ULTIMATE.start_main_~i~1#1_21|)) (not (< |v_ULTIMATE.start_main_~i~1#1_21| |ULTIMATE.start_main_~n~0#1|)) (= (select .cse14 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0))) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse3 .cse4 .cse9 .cse7) (and .cse1 .cse3 .cse6 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse10 .cse11)))) [2022-12-13 16:27:29,262 INFO L899 garLoopResultBuilder]: For program point L31-4(line 31) no Hoare annotation was computed. [2022-12-13 16:27:29,263 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 21) no Hoare annotation was computed. [2022-12-13 16:27:29,263 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 18 23) the Hoare annotation is: (let ((.cse9 (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse1 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1)) (.cse8 (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (< |ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~1#1_21| 1)) (< |v_ULTIMATE.start_main_~i~1#1_21| 2) (= (select .cse9 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0)))) (.cse11 (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (not (<= (+ |ULTIMATE.start_main_~i~1#1| 1) |v_ULTIMATE.start_main_~i~1#1_21|)) (not (< |v_ULTIMATE.start_main_~i~1#1_21| |ULTIMATE.start_main_~n~0#1|)) (= (select .cse9 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0)))) (.cse12 (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_21| 2) (not (< |v_ULTIMATE.start_main_~i~1#1_21| |ULTIMATE.start_main_~n~0#1|)) (= (select .cse9 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0)))) (.cse13 (= (select .cse9 (+ 8 |ULTIMATE.start_main_~x~0#1.offset|)) 0)) (.cse10 (* |ULTIMATE.start_main_~i~1#1| 4)) (.cse4 (<= |ULTIMATE.start_main_~n~0#1| 2)) (.cse0 (= 0 (select .cse9 0))) (.cse6 (<= |ULTIMATE.start_main_~i~0#1| 2)) (.cse2 (= |ULTIMATE.start_main_~x~0#1.offset| 0)) (.cse3 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) (.cse7 (= (select .cse9 (+ |ULTIMATE.start_main_~x~0#1.offset| 4)) 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~n~0#1| 1) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and .cse4 .cse0 .cse1 .cse5 .cse6 .cse2 .cse3 .cse7) (and .cse8 .cse0 (= (select .cse9 (+ .cse10 |ULTIMATE.start_main_~x~0#1.offset|)) 0) .cse5 .cse11 .cse2 .cse12 .cse13 .cse3 .cse7) (and .cse8 .cse0 .cse11 .cse2 .cse12 .cse13 .cse3 (= (select .cse9 (+ .cse10 |ULTIMATE.start_main_~x~0#1.offset| 4)) 0) .cse7) (and .cse4 .cse0 .cse6 .cse2 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse7)))) [2022-12-13 16:27:29,263 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 16:27:29,263 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 26 33) the Hoare annotation is: true [2022-12-13 16:27:29,263 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 16:27:29,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 16:27:29,264 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-12-13 16:27:29,264 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2022-12-13 16:27:29,264 INFO L895 garLoopResultBuilder]: At program point L30-3(line 30) the Hoare annotation is: (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse4 (* |ULTIMATE.start_main_~i~0#1| 4)) (.cse0 (= 0 (select .cse2 0))) (.cse1 (= |ULTIMATE.start_main_~x~0#1.offset| 0)) (.cse3 (= (select .cse2 (+ |ULTIMATE.start_main_~x~0#1.offset| 4)) 0))) (or (and .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~i~0#1|) (exists ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (and (= (select .cse2 (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0) (<= |v_ULTIMATE.start_main_~i~0#1_23| 2) (<= |ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))) .cse3) (and .cse1 (= (+ .cse4 |ULTIMATE.start_main_~x~0#1.offset|) 0)) (and (= |ULTIMATE.start_main_~i~0#1| 1) (= (select .cse2 (+ (- 4) .cse4 |ULTIMATE.start_main_~x~0#1.offset|)) 0) .cse1) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_21| Int)) (or (< |ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~1#1_21| 1)) (< |v_ULTIMATE.start_main_~i~1#1_21| 2) (= (select .cse2 (+ (* |v_ULTIMATE.start_main_~i~1#1_21| 4) |ULTIMATE.start_main_~x~0#1.offset|)) 0))) .cse0 .cse1 (= (select .cse2 (+ 8 |ULTIMATE.start_main_~x~0#1.offset|)) 0) .cse3)))) [2022-12-13 16:27:29,264 INFO L899 garLoopResultBuilder]: For program point L30-4(line 30) no Hoare annotation was computed. [2022-12-13 16:27:29,264 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-13 16:27:29,264 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-13 16:27:29,267 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-12-13 16:27:29,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:27:29,274 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,275 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,275 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,275 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,275 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,275 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,276 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,277 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,283 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,284 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,288 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,288 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,288 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,289 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,289 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,289 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,289 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,290 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,291 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,292 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,292 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,292 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,293 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,293 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,293 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,293 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,293 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:27:29 BoogieIcfgContainer [2022-12-13 16:27:29,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:27:29,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:27:29,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:27:29,297 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:27:29,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:27:22" (3/4) ... [2022-12-13 16:27:29,300 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:27:29,306 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 16:27:29,306 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 16:27:29,306 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 16:27:29,306 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:27:29,322 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == unknown-#memory_int-unknown[x][0] && x == 0) && 2 <= i) && (\exists v_ULTIMATE.start_main_~i~0#1_23 : int :: (unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~0#1_23 * 4 + x] == 0 && v_ULTIMATE.start_main_~i~0#1_23 <= 2) && i <= v_ULTIMATE.start_main_~i~0#1_23 + 1)) && unknown-#memory_int-unknown[x][x + 4] == 0) || (x == 0 && i * 4 + x == 0)) || ((i == 1 && unknown-#memory_int-unknown[x][-4 + i * 4 + x] == 0) && x == 0)) || (((((forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0) && 0 == unknown-#memory_int-unknown[x][0]) && x == 0) && unknown-#memory_int-unknown[x][8 + x] == 0) && unknown-#memory_int-unknown[x][x + 4] == 0) [2022-12-13 16:27:29,327 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:27:29,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:27:29,328 INFO L158 Benchmark]: Toolchain (without parser) took 7102.85ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 109.3MB in the beginning and 79.8MB in the end (delta: 29.6MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2022-12-13 16:27:29,328 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:27:29,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.53ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 99.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 16:27:29,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.74ms. Allocated memory is still 144.7MB. Free memory was 99.0MB in the beginning and 97.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:27:29,329 INFO L158 Benchmark]: Boogie Preprocessor took 21.21ms. Allocated memory is still 144.7MB. Free memory was 97.7MB in the beginning and 96.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:27:29,330 INFO L158 Benchmark]: RCFGBuilder took 207.38ms. Allocated memory is still 144.7MB. Free memory was 96.3MB in the beginning and 86.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 16:27:29,330 INFO L158 Benchmark]: TraceAbstraction took 6661.12ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 85.2MB in the beginning and 81.9MB in the end (delta: 3.3MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2022-12-13 16:27:29,330 INFO L158 Benchmark]: Witness Printer took 30.68ms. Allocated memory is still 174.1MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:27:29,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.53ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 99.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.74ms. Allocated memory is still 144.7MB. Free memory was 99.0MB in the beginning and 97.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.21ms. Allocated memory is still 144.7MB. Free memory was 97.7MB in the beginning and 96.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 207.38ms. Allocated memory is still 144.7MB. Free memory was 96.3MB in the beginning and 86.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6661.12ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 85.2MB in the beginning and 81.9MB in the end (delta: 3.3MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Witness Printer took 30.68ms. Allocated memory is still 174.1MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] * 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: 20]: 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 305 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 233 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 510 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 72 mSDtfsCounter, 510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 108 SyntacticMatches, 16 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=6, InterpolantAutomatonStates: 73, 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 32 NumberOfFragments, 833 HoareAnnotationTreeSize, 4 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 2245 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 245 ConstructedInterpolants, 22 QuantifiedInterpolants, 1907 SizeOfPredicates, 41 NumberOfNonLiveVariables, 389 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 34/117 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2022-12-13 16:27:29,339 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,342 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,342 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,342 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,343 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,343 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,345 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,346 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,346 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,346 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] Derived loop invariant: ((((((((0 == unknown-#memory_int-unknown[x][0] && i == 0) && x == 0) && !(cond == 0)) && n <= 1) && i <= 1) || (((((((n <= 2 && 0 == unknown-#memory_int-unknown[x][0]) && i == 0) && cond == 1) && i <= 2) && x == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][x + 4] == 0)) || ((((((((((forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0) && 0 == unknown-#memory_int-unknown[x][0]) && unknown-#memory_int-unknown[x][i * 4 + x] == 0) && cond == 1) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (!(i + 1 <= v_ULTIMATE.start_main_~i~1#1_21) || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && x == 0) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (v_ULTIMATE.start_main_~i~1#1_21 < 2 || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && unknown-#memory_int-unknown[x][8 + x] == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][x + 4] == 0)) || (((((((((forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0) && 0 == unknown-#memory_int-unknown[x][0]) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (!(i + 1 <= v_ULTIMATE.start_main_~i~1#1_21) || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && x == 0) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (v_ULTIMATE.start_main_~i~1#1_21 < 2 || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && unknown-#memory_int-unknown[x][8 + x] == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][i * 4 + x + 4] == 0) && unknown-#memory_int-unknown[x][x + 4] == 0)) || ((((((n <= 2 && 0 == unknown-#memory_int-unknown[x][0]) && i <= 2) && x == 0) && !(cond == 0)) && 1 <= i) && unknown-#memory_int-unknown[x][x + 4] == 0) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant [2022-12-13 16:27:29,347 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,347 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,347 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,348 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,348 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,348 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,348 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,349 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,349 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0#1_23,QUANTIFIED] [2022-12-13 16:27:29,349 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,349 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,349 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] Derived loop invariant: ((((((0 == unknown-#memory_int-unknown[x][0] && x == 0) && 2 <= i) && (\exists v_ULTIMATE.start_main_~i~0#1_23 : int :: (unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~0#1_23 * 4 + x] == 0 && v_ULTIMATE.start_main_~i~0#1_23 <= 2) && i <= v_ULTIMATE.start_main_~i~0#1_23 + 1)) && unknown-#memory_int-unknown[x][x + 4] == 0) || (x == 0 && i * 4 + x == 0)) || ((i == 1 && unknown-#memory_int-unknown[x][-4 + i * 4 + x] == 0) && x == 0)) || (((((forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0) && 0 == unknown-#memory_int-unknown[x][0]) && x == 0) && unknown-#memory_int-unknown[x][8 + x] == 0) && unknown-#memory_int-unknown[x][x + 4] == 0) - InvariantResult [Line: 31]: Loop Invariant [2022-12-13 16:27:29,350 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,350 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,350 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,350 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,350 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,350 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,351 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,351 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,351 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,351 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,351 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,351 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,352 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,353 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,353 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,354 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,354 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,354 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,354 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,355 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,356 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,357 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,357 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] [2022-12-13 16:27:29,357 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1#1_21,QUANTIFIED] Derived loop invariant: ((((((((((((((!(i < n) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && 0 == unknown-#memory_int-unknown[x][0]) && cond == 1) && x == 0) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (v_ULTIMATE.start_main_~i~1#1_21 < 2 || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && unknown-#memory_int-unknown[x][8 + x] == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][x + 4] == 0) || ((((unknown-#memory_int-unknown[x][i * 4 + x] == 0 && x == 0) && i * 4 + x == 0) && n <= 1) && i <= 1)) || ((((((n <= 2 && 0 == unknown-#memory_int-unknown[x][0]) && 2 <= i) && i <= 2) && x == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][x + 4] == 0)) || (((((((n <= 2 && 0 == unknown-#memory_int-unknown[x][0]) && cond == 1) && i <= 2) && i == 1) && x == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][x + 4] == 0)) || ((i == 0 && i == 0) && n <= 0)) || (((((((((forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0) && 0 == unknown-#memory_int-unknown[x][0]) && unknown-#memory_int-unknown[x][i * 4 + x] == 0) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (!(i + 1 <= v_ULTIMATE.start_main_~i~1#1_21) || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && x == 0) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (v_ULTIMATE.start_main_~i~1#1_21 < 2 || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && unknown-#memory_int-unknown[x][8 + x] == 0) && !(cond == 0)) && unknown-#memory_int-unknown[x][x + 4] == 0)) || ((((((forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (i < v_ULTIMATE.start_main_~i~1#1_21 + 1 || v_ULTIMATE.start_main_~i~1#1_21 < 2) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0) && unknown-#memory_int-unknown[x][i * 4 + x] == 0) && x == 0) && (forall v_ULTIMATE.start_main_~i~1#1_21 : int :: (v_ULTIMATE.start_main_~i~1#1_21 < 2 || !(v_ULTIMATE.start_main_~i~1#1_21 < n)) || unknown-#memory_int-unknown[x][v_ULTIMATE.start_main_~i~1#1_21 * 4 + x] == 0)) && i * 4 + x == 0) && unknown-#memory_int-unknown[x][x + 4] == 0)) || (((((0 == unknown-#memory_int-unknown[x][0] && x == 0) && !(cond == 0)) && 1 <= i) && n <= 1) && i <= 1) RESULT: Ultimate proved your program to be correct! [2022-12-13 16:27:29,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a49544-2091-4638-9d72-ce318536a954/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE