./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_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-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan --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 dac7e437197a3948d916763ae4622f6f32af8f4d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:29:49,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:29:49,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:29:49,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:29:49,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:29:49,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:29:49,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:29:49,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:29:49,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:29:49,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:29:49,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:29:49,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:29:49,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:29:49,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:29:49,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:29:49,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:29:49,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:29:49,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:29:49,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:29:49,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:29:49,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:29:49,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:29:49,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:29:49,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:29:49,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:29:49,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:29:49,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:29:49,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:29:49,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:29:49,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:29:49,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:29:49,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:29:49,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:29:49,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:29:49,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:29:49,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:29:49,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:29:49,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:29:49,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:29:49,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:29:49,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:29:49,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 14:29:49,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:29:49,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:29:49,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:29:49,871 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:29:49,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:29:49,872 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:29:49,872 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:29:49,873 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:29:49,873 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:29:49,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:29:49,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:29:49,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:29:49,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:29:49,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:29:49,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:29:49,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:29:49,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:29:49,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:29:49,876 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-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dac7e437197a3948d916763ae4622f6f32af8f4d [2020-12-09 14:29:50,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:29:50,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:29:50,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:29:50,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:29:50,063 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:29:50,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c [2020-12-09 14:29:50,104 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/data/cb418066d/84edf9c40c024616bda0430eee78ed15/FLAGe5ab44b1e [2020-12-09 14:29:50,482 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:29:50,482 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c [2020-12-09 14:29:50,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/data/cb418066d/84edf9c40c024616bda0430eee78ed15/FLAGe5ab44b1e [2020-12-09 14:29:50,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/data/cb418066d/84edf9c40c024616bda0430eee78ed15 [2020-12-09 14:29:50,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:29:50,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:29:50,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:29:50,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:29:50,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:29:50,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43772d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50, skipping insertion in model container [2020-12-09 14:29:50,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:29:50,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:29:50,629 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c[546,559] [2020-12-09 14:29:50,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:29:50,651 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:29:50,663 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c[546,559] [2020-12-09 14:29:50,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:29:50,678 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:29:50,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50 WrapperNode [2020-12-09 14:29:50,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:29:50,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:29:50,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:29:50,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:29:50,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:29:50,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:29:50,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:29:50,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:29:50,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... [2020-12-09 14:29:50,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:29:50,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:29:50,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:29:50,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:29:50,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/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 [2020-12-09 14:29:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:29:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:29:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:29:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:29:51,016 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:29:51,016 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-09 14:29:51,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:29:51 BoogieIcfgContainer [2020-12-09 14:29:51,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:29:51,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:29:51,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:29:51,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:29:51,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:29:50" (1/3) ... [2020-12-09 14:29:51,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b32d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:29:51, skipping insertion in model container [2020-12-09 14:29:51,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:29:50" (2/3) ... [2020-12-09 14:29:51,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b32d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:29:51, skipping insertion in model container [2020-12-09 14:29:51,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:29:51" (3/3) ... [2020-12-09 14:29:51,024 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound50.c [2020-12-09 14:29:51,034 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:29:51,037 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 14:29:51,045 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 14:29:51,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:29:51,062 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:29:51,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:29:51,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:29:51,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:29:51,063 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:29:51,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:29:51,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:29:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-09 14:29:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 14:29:51,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:29:51,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 14:29:51,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:29:51,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:29:51,081 INFO L82 PathProgramCache]: Analyzing trace with hash 92080106, now seen corresponding path program 1 times [2020-12-09 14:29:51,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:29:51,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780770743] [2020-12-09 14:29:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:29:51,169 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 14:29:51,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494550920] [2020-12-09 14:29:51,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/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 [2020-12-09 14:29:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:29:51,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 14:29:51,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:29:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:29:51,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:29:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:29:51,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780770743] [2020-12-09 14:29:51,313 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:29:51,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494550920] [2020-12-09 14:29:51,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:29:51,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 14:29:51,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872424505] [2020-12-09 14:29:51,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 14:29:51,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:29:51,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 14:29:51,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:29:51,336 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2020-12-09 14:29:53,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:29:53,425 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2020-12-09 14:29:53,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 14:29:53,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-12-09 14:29:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:29:53,434 INFO L225 Difference]: With dead ends: 42 [2020-12-09 14:29:53,435 INFO L226 Difference]: Without dead ends: 22 [2020-12-09 14:29:53,437 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 [2020-12-09 14:29:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-09 14:29:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2020-12-09 14:29:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 14:29:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-12-09 14:29:53,460 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2020-12-09 14:29:53,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:29:53,460 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-12-09 14:29:53,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 14:29:53,460 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-09 14:29:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 14:29:53,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:29:53,461 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2020-12-09 14:29:53,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 14:29:53,663 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:29:53,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:29:53,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1331312194, now seen corresponding path program 1 times [2020-12-09 14:29:53,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:29:53,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320006313] [2020-12-09 14:29:53,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:29:53,685 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 14:29:53,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409175338] [2020-12-09 14:29:53,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/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 [2020-12-09 14:29:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:29:53,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-09 14:29:53,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:29:59,931 WARN L197 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 14:29:59,944 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:29:59,952 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:29:59,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:30:01,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:30:01,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:30:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:30:06,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:30:14,696 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 14:30:28,858 WARN L197 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 14:30:28,870 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 14:30:28,870 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 14:30:30,896 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((ULTIMATE.start_main_~x~0 Int)) (let ((.cse0 (* c_ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))) (or (not (= (+ .cse0 1) (+ c_ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0))) (= (+ (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~z~0) (+ .cse0 (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~y~0)))))) (<= c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~c~0)) is different from true [2020-12-09 14:30:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2020-12-09 14:30:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320006313] [2020-12-09 14:30:30,915 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:30:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409175338] [2020-12-09 14:30:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2099819395] [2020-12-09 14:30:30,931 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 14:30:30,931 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:30:30,934 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:30:30,938 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:30:30,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:30:31,018 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 14:30:31,498 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:30:31,688 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-12-09 14:30:34,085 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2020-12-09 14:30:37,375 WARN L197 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 111 [2020-12-09 14:31:00,742 WARN L197 SmtUtils]: Spent 15.03 s on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2020-12-09 14:31:00,992 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-12-09 14:31:00,993 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:31:00,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-09 14:31:00,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-12-09 14:31:00,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276027439] [2020-12-09 14:31:00,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 14:31:00,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:31:00,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 14:31:00,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=217, Unknown=16, NotChecked=30, Total=306 [2020-12-09 14:31:00,996 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 13 states. [2020-12-09 14:31:01,340 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2020-12-09 14:31:37,266 WARN L197 SmtUtils]: Spent 26.49 s on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2020-12-09 14:33:52,618 WARN L197 SmtUtils]: Spent 28.74 s on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-12-09 14:36:14,317 WARN L197 SmtUtils]: Spent 2.18 m on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-09 14:39:38,523 WARN L197 SmtUtils]: Spent 3.23 m on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-12-09 14:40:18,608 WARN L197 SmtUtils]: Spent 26.89 s on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2020-12-09 14:40:54,933 WARN L197 SmtUtils]: Spent 24.42 s on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-12-09 14:41:11,938 WARN L197 SmtUtils]: Spent 8.16 s on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 14:41:31,259 WARN L197 SmtUtils]: Spent 8.72 s on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 14:41:37,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:41:37,429 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-12-09 14:41:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 14:41:37,431 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2020-12-09 14:41:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:41:37,432 INFO L225 Difference]: With dead ends: 33 [2020-12-09 14:41:37,432 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 14:41:37,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 583.8s TimeCoverageRelationStatistics Valid=181, Invalid=657, Unknown=36, NotChecked=56, Total=930 [2020-12-09 14:41:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 14:41:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2020-12-09 14:41:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-09 14:41:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-12-09 14:41:37,438 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 13 [2020-12-09 14:41:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:41:37,439 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-12-09 14:41:37,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 14:41:37,439 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-12-09 14:41:37,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 14:41:37,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:41:37,439 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1] [2020-12-09 14:41:37,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:41:37,641 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:41:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:41:37,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1480518718, now seen corresponding path program 1 times [2020-12-09 14:41:37,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:41:37,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89603071] [2020-12-09 14:41:37,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:41:37,678 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 14:41:37,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69130423] [2020-12-09 14:41:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/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 [2020-12-09 14:41:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:37,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-09 14:41:37,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:41:37,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:41:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-09 14:41:38,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89603071] [2020-12-09 14:41:38,104 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:41:38,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69130423] [2020-12-09 14:41:38,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 14:41:38,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-12-09 14:41:38,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332916473] [2020-12-09 14:41:38,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 14:41:38,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:41:38,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 14:41:38,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-09 14:41:38,106 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 5 states. [2020-12-09 14:41:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:41:40,221 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-12-09 14:41:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 14:41:40,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-12-09 14:41:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:41:40,224 INFO L225 Difference]: With dead ends: 21 [2020-12-09 14:41:40,224 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 14:41:40,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-12-09 14:41:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 14:41:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 14:41:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 14:41:40,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 14:41:40,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-12-09 14:41:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:41:40,226 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 14:41:40,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 14:41:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 14:41:40,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 14:41:40,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-09 14:41:40,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 14:42:26,230 WARN L197 SmtUtils]: Spent 45.79 s on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-09 14:42:45,028 WARN L197 SmtUtils]: Spent 18.78 s on a formula simplification. DAG size of input: 29 DAG size of output: 22 [2020-12-09 14:42:45,030 INFO L258 CegarLoopResult]: At program point L35-3(lines 35 45) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) (or (forall ((ULTIMATE.start_main_~x~0 Int)) (let ((.cse0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))) (or (not (= (+ .cse0 1) (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~z~0) (+ .cse0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0)))))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~c~0))) (and (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~k~0) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~c~0))) [2020-12-09 14:42:45,030 INFO L262 CegarLoopResult]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2020-12-09 14:42:45,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-12-09 14:42:45,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 14:42:45,030 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-12-09 14:42:45,030 INFO L262 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-12-09 14:42:45,031 INFO L258 CegarLoopResult]: At program point L16-2(lines 38 39) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (+ .cse0 1) (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) (or (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~z~0) (+ .cse0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~c~0)))) [2020-12-09 14:42:45,031 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2020-12-09 14:42:45,031 INFO L258 CegarLoopResult]: At program point L16-5(lines 15 21) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-12-09 14:42:45,031 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 14:42:45,031 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-12-09 14:42:45,031 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2020-12-09 14:42:45,031 INFO L262 CegarLoopResult]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2020-12-09 14:42:45,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:42:45 BoogieIcfgContainer [2020-12-09 14:42:45,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:42:45,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:42:45,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:42:45,044 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:42:45,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:29:51" (3/4) ... [2020-12-09 14:42:45,047 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 14:42:45,053 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-09 14:42:45,053 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 14:42:45,053 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 14:42:45,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 14:42:45,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b66d122c-74b0-49a7-a551-1be85788a059/bin/utaipan/witness.graphml [2020-12-09 14:42:45,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:42:45,081 INFO L168 Benchmark]: Toolchain (without parser) took 774581.57 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 76.3 MB in the beginning and 52.9 MB in the end (delta: 23.4 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:45,081 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 115.3 MB. Free memory is still 92.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:42:45,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.64 ms. Allocated memory is still 115.3 MB. Free memory was 76.1 MB in the beginning and 91.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:45,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.09 ms. Allocated memory is still 115.3 MB. Free memory was 91.7 MB in the beginning and 90.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:45,082 INFO L168 Benchmark]: Boogie Preprocessor took 16.64 ms. Allocated memory is still 115.3 MB. Free memory was 90.1 MB in the beginning and 89.2 MB in the end (delta: 946.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:42:45,082 INFO L168 Benchmark]: RCFGBuilder took 294.71 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 70.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:45,083 INFO L168 Benchmark]: TraceAbstraction took 774024.76 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 69.6 MB in the beginning and 56.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:45,083 INFO L168 Benchmark]: Witness Printer took 36.05 ms. Allocated memory is still 138.4 MB. Free memory was 55.0 MB in the beginning and 52.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:45,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 115.3 MB. Free memory is still 92.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 178.64 ms. Allocated memory is still 115.3 MB. Free memory was 76.1 MB in the beginning and 91.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.09 ms. Allocated memory is still 115.3 MB. Free memory was 91.7 MB in the beginning and 90.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.64 ms. Allocated memory is still 115.3 MB. Free memory was 90.1 MB in the beginning and 89.2 MB in the end (delta: 946.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 294.71 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 70.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 774024.76 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 69.6 MB in the beginning and 56.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. * Witness Printer took 36.05 ms. Allocated memory is still 138.4 MB. Free memory was 55.0 MB in the beginning and 52.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant [2020-12-09 14:42:45,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] [2020-12-09 14:42:45,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~x~0,QUANTIFIED] Derived loop invariant: ((!(0 == cond) && z * x + 1 == x + y) && ((forall ULTIMATE.start_main_~x~0 : int :: !(z * ULTIMATE.start_main_~x~0 + 1 == ULTIMATE.start_main_~x~0 + y) || z * z * ULTIMATE.start_main_~x~0 + z == z * ULTIMATE.start_main_~x~0 + z * y) || k <= c)) || (((x == 1 && 1 <= k) && z == y) && 1 <= c) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (!(0 == cond) && z * x + 1 == x + y) && (z * z * x + z == z * x + z * y || k <= c) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 709.3s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 640.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 64.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 111 SDslu, 50 SDs, 0 SdLazy, 82 SolverSat, 45 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 116.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 59 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 584.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 13 NumberOfFragments, 94 HoareAnnotationTreeSize, 3 FomulaSimplifications, 391 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 64.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 37.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 2 QuantifiedInterpolants, 7886 SizeOfPredicates, 31 NumberOfNonLiveVariables, 276 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 43/68 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...