./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9aa4eed507109801754e8007929fb4ed79ffe649 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:21,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:21,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:21,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:21,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:21,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:21,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:21,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:21,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:21,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:21,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:21,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:21,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:21,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:21,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:21,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:21,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:21,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:21,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:21,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:21,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:21,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:21,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:21,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:21,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:21,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:21,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:21,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:21,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:21,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:21,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:21,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:21,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:21,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:21,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:21,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:21,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:21,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:21,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:21,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:21,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:21,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:21:21,755 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:21,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:21,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:21,757 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:21,757 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:21,758 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:21,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:21:21,758 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:21,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:21,759 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:21:21,759 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:21:21,760 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:21,760 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:21:21,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:21:21,761 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:21:21,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:21,762 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:21,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:21:21,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:21,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:21,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:21,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:21,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:21,771 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:21,771 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:21,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:21,772 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:21,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:21,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:21,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:21,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:21,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:21,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:21,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:21,776 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:21:21,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:21:21,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:21,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:21,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:21,778 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aa4eed507109801754e8007929fb4ed79ffe649 [2021-10-11 02:21:22,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:22,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:22,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:22,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:22,059 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:22,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2021-10-11 02:21:22,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/data/74a26065a/1baa9bab80794927aab5686e31c8ae0f/FLAG02ccc850b [2021-10-11 02:21:22,548 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:22,549 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2021-10-11 02:21:22,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/data/74a26065a/1baa9bab80794927aab5686e31c8ae0f/FLAG02ccc850b [2021-10-11 02:21:22,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/data/74a26065a/1baa9bab80794927aab5686e31c8ae0f [2021-10-11 02:21:22,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:22,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:22,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:22,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:22,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:22,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fde42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:22, skipping insertion in model container [2021-10-11 02:21:22,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:22" (1/1) ... [2021-10-11 02:21:22,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:22,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:23,162 WARN L226 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_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c[573,586] [2021-10-11 02:21:23,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:23,192 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:23,202 WARN L226 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_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c[573,586] [2021-10-11 02:21:23,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:23,220 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:23,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23 WrapperNode [2021-10-11 02:21:23,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:23,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:23,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:23,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:23,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:23,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:23,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:23,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:23,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... [2021-10-11 02:21:23,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:23,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:23,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:23,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:23,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:23,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:23,694 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 02:21:23,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:23 BoogieIcfgContainer [2021-10-11 02:21:23,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:23,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:23,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:23,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:23,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:22" (1/3) ... [2021-10-11 02:21:23,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e3c2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:23, skipping insertion in model container [2021-10-11 02:21:23,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:23" (2/3) ... [2021-10-11 02:21:23,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e3c2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:23, skipping insertion in model container [2021-10-11 02:21:23,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:23" (3/3) ... [2021-10-11 02:21:23,720 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound50.c [2021-10-11 02:21:23,734 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:23,745 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:21:23,768 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:21:23,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:23,803 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:23,803 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:23,803 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:23,803 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:23,804 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:23,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:23,804 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:21:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:21:23,822 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:23,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:21:23,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:23,829 INFO L82 PathProgramCache]: Analyzing trace with hash 98480205, now seen corresponding path program 1 times [2021-10-11 02:21:23,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:23,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938527397] [2021-10-11 02:21:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:23,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938527397] [2021-10-11 02:21:23,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:23,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:24,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391136944] [2021-10-11 02:21:24,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:21:24,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:24,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:21:24,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:24,028 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2021-10-11 02:21:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:24,045 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2021-10-11 02:21:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:21:24,047 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:21:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:24,067 INFO L225 Difference]: With dead ends: 25 [2021-10-11 02:21:24,075 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:21:24,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:21:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:21:24,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:21:24,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-11 02:21:24,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2021-10-11 02:21:24,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:24,112 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-11 02:21:24,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:21:24,113 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-10-11 02:21:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:21:24,114 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:24,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:21:24,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:21:24,114 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:24,118 INFO L82 PathProgramCache]: Analyzing trace with hash 97621232, now seen corresponding path program 1 times [2021-10-11 02:21:24,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:24,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272261583] [2021-10-11 02:21:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:24,161 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:24,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130509974] [2021-10-11 02:21:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:24,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 02:21:24,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:24,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:24,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272261583] [2021-10-11 02:21:24,391 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:24,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130509974] [2021-10-11 02:21:24,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:24,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:21:24,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95074299] [2021-10-11 02:21:24,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:24,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:24,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:24,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:21:24,394 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2021-10-11 02:21:24,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:24,487 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-10-11 02:21:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:24,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2021-10-11 02:21:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:24,488 INFO L225 Difference]: With dead ends: 20 [2021-10-11 02:21:24,488 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:21:24,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:21:24,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:21:24,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 9. [2021-10-11 02:21:24,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:21:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-11 02:21:24,501 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 5 [2021-10-11 02:21:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:24,505 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-11 02:21:24,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:24,506 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-11 02:21:24,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:21:24,506 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:24,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:21:24,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:21:24,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:24,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:24,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1268746775, now seen corresponding path program 1 times [2021-10-11 02:21:24,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:24,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546785568] [2021-10-11 02:21:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:24,736 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:24,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619844146] [2021-10-11 02:21:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:24,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:21:24,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:24,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:24,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546785568] [2021-10-11 02:21:24,847 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:24,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619844146] [2021-10-11 02:21:24,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:24,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:21:24,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182996557] [2021-10-11 02:21:24,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:24,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:24,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:24,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:21:24,850 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 6 states. [2021-10-11 02:21:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:24,878 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-10-11 02:21:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:24,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2021-10-11 02:21:24,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:24,880 INFO L225 Difference]: With dead ends: 23 [2021-10-11 02:21:24,880 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 02:21:24,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:21:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 02:21:24,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2021-10-11 02:21:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 02:21:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-11 02:21:24,887 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-10-11 02:21:24,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:24,888 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-11 02:21:24,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-11 02:21:24,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:21:24,888 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:24,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:25,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:25,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:25,113 INFO L82 PathProgramCache]: Analyzing trace with hash 546169794, now seen corresponding path program 1 times [2021-10-11 02:21:25,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:25,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615235529] [2021-10-11 02:21:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:25,127 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:25,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453361452] [2021-10-11 02:21:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:25,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-11 02:21:25,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:25,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:25,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:25,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615235529] [2021-10-11 02:21:25,452 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:25,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453361452] [2021-10-11 02:21:25,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:25,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-11 02:21:25,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278746130] [2021-10-11 02:21:25,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 02:21:25,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:25,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 02:21:25,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:21:25,461 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 11 states. [2021-10-11 02:21:25,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:25,600 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-11 02:21:25,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:21:25,603 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2021-10-11 02:21:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:25,603 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:21:25,603 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:21:25,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:21:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:21:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 02:21:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 02:21:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-11 02:21:25,609 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-10-11 02:21:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:25,609 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-11 02:21:25,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 02:21:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-11 02:21:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:21:25,610 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:25,610 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-11 02:21:25,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:25,833 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:25,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:25,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1998402165, now seen corresponding path program 1 times [2021-10-11 02:21:25,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:25,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182485245] [2021-10-11 02:21:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:25,864 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:25,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47735440] [2021-10-11 02:21:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:25,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:21:25,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:25,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:26,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182485245] [2021-10-11 02:21:26,069 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:26,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47735440] [2021-10-11 02:21:26,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1399786981] [2021-10-11 02:21:26,095 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-11 02:21:26,095 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:21:26,100 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:21:26,106 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:21:26,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:21:26,245 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:21:26,871 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:21:27,109 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2021-10-11 02:21:27,276 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-10-11 02:21:27,570 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-10-11 02:21:27,729 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:27,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:21:27,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-11 02:21:27,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340782420] [2021-10-11 02:21:27,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:21:27,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:27,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:21:27,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-11 02:21:27,733 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2021-10-11 02:21:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:27,833 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2021-10-11 02:21:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-11 02:21:27,834 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2021-10-11 02:21:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:27,843 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:21:27,843 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 02:21:27,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2021-10-11 02:21:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 02:21:27,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-11 02:21:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:21:27,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-11 02:21:27,860 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 14 [2021-10-11 02:21:27,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:27,860 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-11 02:21:27,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:21:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-11 02:21:27,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:21:27,862 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:27,862 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1] [2021-10-11 02:21:28,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:28,082 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:28,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:28,082 INFO L82 PathProgramCache]: Analyzing trace with hash 652162767, now seen corresponding path program 2 times [2021-10-11 02:21:28,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:28,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961217270] [2021-10-11 02:21:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:28,102 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:28,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290304390] [2021-10-11 02:21:28,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:28,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-11 02:21:28,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:21:28,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:21:28,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:28,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:28,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961217270] [2021-10-11 02:21:28,452 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:28,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290304390] [2021-10-11 02:21:28,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [578459535] [2021-10-11 02:21:28,456 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-11 02:21:28,456 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:21:28,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:21:28,457 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:21:28,457 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:21:28,527 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:21:28,964 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:21:29,177 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2021-10-11 02:21:29,320 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-10-11 02:21:29,608 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-10-11 02:21:29,764 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:29,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:21:29,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-11 02:21:29,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369610993] [2021-10-11 02:21:29,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-10-11 02:21:29,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:29,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-11 02:21:29,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2021-10-11 02:21:29,766 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 18 states. [2021-10-11 02:21:30,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:30,029 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2021-10-11 02:21:30,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-11 02:21:30,029 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2021-10-11 02:21:30,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:30,030 INFO L225 Difference]: With dead ends: 67 [2021-10-11 02:21:30,030 INFO L226 Difference]: Without dead ends: 63 [2021-10-11 02:21:30,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=366, Invalid=1040, Unknown=0, NotChecked=0, Total=1406 [2021-10-11 02:21:30,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-11 02:21:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-11 02:21:30,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-10-11 02:21:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2021-10-11 02:21:30,044 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 30 [2021-10-11 02:21:30,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:30,044 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2021-10-11 02:21:30,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-10-11 02:21:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2021-10-11 02:21:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-11 02:21:30,046 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:30,047 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 1, 1, 1, 1, 1] [2021-10-11 02:21:30,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-11 02:21:30,260 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:30,261 INFO L82 PathProgramCache]: Analyzing trace with hash -43060905, now seen corresponding path program 3 times [2021-10-11 02:21:30,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:30,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118585217] [2021-10-11 02:21:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:30,278 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:30,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413935678] [2021-10-11 02:21:30,281 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:30,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-11 02:21:30,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:21:30,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-11 02:21:30,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:30,622 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:30,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:31,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118585217] [2021-10-11 02:21:31,109 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:31,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413935678] [2021-10-11 02:21:31,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1615193982] [2021-10-11 02:21:31,114 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-11 02:21:31,115 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:21:31,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:21:31,115 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:21:31,116 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:21:31,159 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:21:31,472 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:21:31,702 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2021-10-11 02:21:31,872 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-10-11 02:21:32,164 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-10-11 02:21:32,332 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:32,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:21:32,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2021-10-11 02:21:32,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58253810] [2021-10-11 02:21:32,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-10-11 02:21:32,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:32,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-11 02:21:32,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=527, Invalid=1113, Unknown=0, NotChecked=0, Total=1640 [2021-10-11 02:21:32,335 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 34 states. [2021-10-11 02:21:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:33,141 INFO L93 Difference]: Finished difference Result 131 states and 146 transitions. [2021-10-11 02:21:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-11 02:21:33,142 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 62 [2021-10-11 02:21:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:33,144 INFO L225 Difference]: With dead ends: 131 [2021-10-11 02:21:33,144 INFO L226 Difference]: Without dead ends: 127 [2021-10-11 02:21:33,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1470, Invalid=3360, Unknown=0, NotChecked=0, Total=4830 [2021-10-11 02:21:33,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-11 02:21:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-10-11 02:21:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2021-10-11 02:21:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2021-10-11 02:21:33,166 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 62 [2021-10-11 02:21:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:33,167 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2021-10-11 02:21:33,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-10-11 02:21:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2021-10-11 02:21:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-10-11 02:21:33,182 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:33,182 INFO L422 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 1, 1, 1, 1, 1] [2021-10-11 02:21:33,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:33,388 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:33,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:33,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1163262361, now seen corresponding path program 4 times [2021-10-11 02:21:33,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:33,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615183544] [2021-10-11 02:21:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:33,403 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:33,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136782098] [2021-10-11 02:21:33,404 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:33,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-11 02:21:33,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 0 proven. 1800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:34,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 0 proven. 1800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:35,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615183544] [2021-10-11 02:21:35,273 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:35,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136782098] [2021-10-11 02:21:35,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1940531536] [2021-10-11 02:21:35,279 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-11 02:21:35,279 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:21:35,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:21:35,280 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:21:35,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:21:35,306 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:21:35,654 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:21:36,317 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-10-11 02:21:36,519 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:36,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:21:36,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 53 [2021-10-11 02:21:36,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548611955] [2021-10-11 02:21:36,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-10-11 02:21:36,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:36,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-11 02:21:36,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1357, Invalid=2303, Unknown=0, NotChecked=0, Total=3660 [2021-10-11 02:21:36,524 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 54 states. [2021-10-11 02:21:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:38,235 INFO L93 Difference]: Finished difference Result 211 states and 230 transitions. [2021-10-11 02:21:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-10-11 02:21:38,236 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 126 [2021-10-11 02:21:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:38,239 INFO L225 Difference]: With dead ends: 211 [2021-10-11 02:21:38,239 INFO L226 Difference]: Without dead ends: 207 [2021-10-11 02:21:38,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2152 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3936, Invalid=8054, Unknown=0, NotChecked=0, Total=11990 [2021-10-11 02:21:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-11 02:21:38,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-10-11 02:21:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2021-10-11 02:21:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 207 transitions. [2021-10-11 02:21:38,288 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 207 transitions. Word has length 126 [2021-10-11 02:21:38,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:38,289 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 207 transitions. [2021-10-11 02:21:38,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 54 states. [2021-10-11 02:21:38,289 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 207 transitions. [2021-10-11 02:21:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-10-11 02:21:38,295 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:38,295 INFO L422 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 1, 1, 1, 1, 1] [2021-10-11 02:21:38,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:38,520 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash -267408197, now seen corresponding path program 5 times [2021-10-11 02:21:38,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:38,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985017299] [2021-10-11 02:21:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:38,551 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:38,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212431162] [2021-10-11 02:21:38,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:39,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2021-10-11 02:21:39,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-11 02:21:39,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:39,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:40,761 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:21:40,761 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:21:40,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable190 [2021-10-11 02:21:41,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:41 BoogieIcfgContainer [2021-10-11 02:21:41,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:41,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:41,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:41,135 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:41,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:23" (3/4) ... [2021-10-11 02:21:41,137 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:21:41,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb32e9-7e8d-4188-8866-f3f9ce8f14ad/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:41,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:41,257 INFO L168 Benchmark]: Toolchain (without parser) took 18303.62 ms. Allocated memory was 107.0 MB in the beginning and 272.6 MB in the end (delta: 165.7 MB). Free memory was 74.8 MB in the beginning and 120.8 MB in the end (delta: -46.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,257 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory was 46.4 MB in the beginning and 46.3 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:41,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.01 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 84.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.76 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 82.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:41,258 INFO L168 Benchmark]: Boogie Preprocessor took 24.04 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 81.8 MB in the end (delta: 758.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:41,259 INFO L168 Benchmark]: RCFGBuilder took 433.41 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 61.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,259 INFO L168 Benchmark]: TraceAbstraction took 17422.08 ms. Allocated memory was 107.0 MB in the beginning and 272.6 MB in the end (delta: 165.7 MB). Free memory was 60.9 MB in the beginning and 136.5 MB in the end (delta: -75.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,260 INFO L168 Benchmark]: Witness Printer took 121.48 ms. Allocated memory is still 272.6 MB. Free memory was 136.5 MB in the beginning and 120.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory was 46.4 MB in the beginning and 46.3 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.01 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 84.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.76 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 82.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.04 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 81.8 MB in the end (delta: 758.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 433.41 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 61.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17422.08 ms. Allocated memory was 107.0 MB in the beginning and 272.6 MB in the end (delta: 165.7 MB). Free memory was 60.9 MB in the beginning and 136.5 MB in the end (delta: -75.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 16.1 GB. * Witness Printer took 121.48 ms. Allocated memory is still 272.6 MB. Free memory was 136.5 MB in the beginning and 120.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] int x1, x2; [L25] int y1, y2, y3; [L26] x1 = __VERIFIER_nondet_int() [L27] x2 = __VERIFIER_nondet_int() [L13] COND FALSE !(!cond) [L13] COND FALSE !(!cond) [L32] y1 = 0 [L33] y2 = 0 [L34] y3 = x1 VAL [counter=0] [L36] EXPR counter++ VAL [counter=1] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=1] [L36] EXPR counter++ VAL [counter=2] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=2] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=2] [L36] EXPR counter++ VAL [counter=3] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=3] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=3] [L36] EXPR counter++ VAL [counter=4] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=4] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=4] [L36] EXPR counter++ VAL [counter=5] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=5] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=5] [L36] EXPR counter++ VAL [counter=6] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=6] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=6] [L36] EXPR counter++ VAL [counter=7] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=7] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=7] [L36] EXPR counter++ VAL [counter=8] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=8] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=8] [L36] EXPR counter++ VAL [counter=9] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=9] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=9] [L36] EXPR counter++ VAL [counter=10] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=10] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=10] [L36] EXPR counter++ VAL [counter=11] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=11] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=11] [L36] EXPR counter++ VAL [counter=12] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=12] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=12] [L36] EXPR counter++ VAL [counter=13] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=13] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=13] [L36] EXPR counter++ VAL [counter=14] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=14] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=14] [L36] EXPR counter++ VAL [counter=15] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=15] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=15] [L36] EXPR counter++ VAL [counter=16] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=16] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=16] [L36] EXPR counter++ VAL [counter=17] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=17] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=17] [L36] EXPR counter++ VAL [counter=18] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=18] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=18] [L36] EXPR counter++ VAL [counter=19] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=19] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=19] [L36] EXPR counter++ VAL [counter=20] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=20] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=20] [L36] EXPR counter++ VAL [counter=21] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=21] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=21] [L36] EXPR counter++ VAL [counter=22] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=22] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=22] [L36] EXPR counter++ VAL [counter=23] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=23] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=23] [L36] EXPR counter++ VAL [counter=24] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=24] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=24] [L36] EXPR counter++ VAL [counter=25] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=25] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=25] [L36] EXPR counter++ VAL [counter=26] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=26] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=26] [L36] EXPR counter++ VAL [counter=27] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=27] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=27] [L36] EXPR counter++ VAL [counter=28] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=28] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=28] [L36] EXPR counter++ VAL [counter=29] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=29] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=29] [L36] EXPR counter++ VAL [counter=30] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=30] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=30] [L36] EXPR counter++ VAL [counter=31] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=31] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=31] [L36] EXPR counter++ VAL [counter=32] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=32] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=32] [L36] EXPR counter++ VAL [counter=33] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=33] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=33] [L36] EXPR counter++ VAL [counter=34] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=34] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=34] [L36] EXPR counter++ VAL [counter=35] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=35] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=35] [L36] EXPR counter++ VAL [counter=36] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=36] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=36] [L36] EXPR counter++ VAL [counter=37] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=37] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=37] [L36] EXPR counter++ VAL [counter=38] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=38] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=38] [L36] EXPR counter++ VAL [counter=39] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=39] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=39] [L36] EXPR counter++ VAL [counter=40] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=40] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=40] [L36] EXPR counter++ VAL [counter=41] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=41] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=41] [L36] EXPR counter++ VAL [counter=42] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=42] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=42] [L36] EXPR counter++ VAL [counter=43] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=43] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=43] [L36] EXPR counter++ VAL [counter=44] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=44] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=44] [L36] EXPR counter++ VAL [counter=45] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=45] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=45] [L36] EXPR counter++ VAL [counter=46] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=46] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=46] [L36] EXPR counter++ VAL [counter=47] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=47] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=47] [L36] EXPR counter++ VAL [counter=48] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=48] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=48] [L36] EXPR counter++ VAL [counter=49] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=49] [L39] COND FALSE !(!(y3 != 0)) [L41] COND FALSE !(y2 + 1 == x2) [L46] y2 = y2 + 1 [L47] y3 = y3 - 1 VAL [counter=49] [L36] EXPR counter++ VAL [counter=50] [L36] COND TRUE counter++<50 [L16] COND FALSE !(!(cond)) VAL [counter=50] [L39] COND FALSE !(!(y3 != 0)) [L41] COND TRUE y2 + 1 == x2 [L42] y1 = y1 + 1 [L43] y2 = 0 [L44] y3 = y3 - 1 VAL [counter=50] [L36] EXPR counter++ VAL [counter=51] [L36] COND FALSE !(counter++<50) [L16] COND TRUE !(cond) VAL [counter=51] [L18] reach_error() VAL [counter=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 9, TraceHistogramMax: 51, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 100 SDslu, 339 SDs, 0 SdLazy, 285 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 824 GetRequests, 569 SyntacticMatches, 1 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3594 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 462 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 120545 SizeOfPredicates, 74 NumberOfNonLiveVariables, 1058 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 0/4544 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...