./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5c9f46ceef17a40f4c8c296250db6bb3816cee9 ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:53:50,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:53:50,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:53:50,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:53:50,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:53:50,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:53:50,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:53:50,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:53:50,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:53:50,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:53:50,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:53:50,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:53:50,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:53:50,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:53:50,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:53:50,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:53:50,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:53:50,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:53:50,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:53:50,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:53:50,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:53:50,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:53:50,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:53:50,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:53:50,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:53:50,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:53:50,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:53:50,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:53:50,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:53:50,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:53:50,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:53:50,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:53:50,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:53:50,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:53:50,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:53:50,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:53:50,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:53:50,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:53:50,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:53:50,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:53:50,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:53:50,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:53:50,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:53:50,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:53:50,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:53:50,932 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:53:50,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:53:50,932 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:53:50,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:53:50,932 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:53:50,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:53:50,932 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:53:50,933 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:53:50,933 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:53:50,933 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:53:50,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:53:50,933 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:53:50,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:53:50,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:53:50,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:53:50,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:53:50,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:53:50,936 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bcd08c07-68e2-485f-8679-6624d9001f63/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(__VERIFIER_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 -> b5c9f46ceef17a40f4c8c296250db6bb3816cee9 [2019-12-07 20:53:51,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:53:51,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:53:51,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:53:51,046 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:53:51,046 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:53:51,046 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/../../sv-benchmarks/c/loops-crafted-1/sumt8.c [2019-12-07 20:53:51,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/data/f164c8e3e/c17157711b4d495f94b2dbea455032d3/FLAG482224e24 [2019-12-07 20:53:51,503 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:53:51,504 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/sv-benchmarks/c/loops-crafted-1/sumt8.c [2019-12-07 20:53:51,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/data/f164c8e3e/c17157711b4d495f94b2dbea455032d3/FLAG482224e24 [2019-12-07 20:53:51,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/data/f164c8e3e/c17157711b4d495f94b2dbea455032d3 [2019-12-07 20:53:51,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:53:51,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:53:51,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:53:51,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:53:51,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:53:51,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce49fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51, skipping insertion in model container [2019-12-07 20:53:51,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:53:51,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:53:51,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:53:51,655 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:53:51,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:53:51,712 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:53:51,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51 WrapperNode [2019-12-07 20:53:51,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:53:51,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:53:51,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:53:51,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:53:51,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:53:51,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:53:51,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:53:51,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:53:51,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... [2019-12-07 20:53:51,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:53:51,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:53:51,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:53:51,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:53:51,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/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 [2019-12-07 20:53:51,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:53:51,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:53:59,139 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:53:59,139 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 20:53:59,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:53:59 BoogieIcfgContainer [2019-12-07 20:53:59,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:53:59,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:53:59,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:53:59,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:53:59,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:53:51" (1/3) ... [2019-12-07 20:53:59,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e24ab2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:53:59, skipping insertion in model container [2019-12-07 20:53:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:53:51" (2/3) ... [2019-12-07 20:53:59,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e24ab2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:53:59, skipping insertion in model container [2019-12-07 20:53:59,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:53:59" (3/3) ... [2019-12-07 20:53:59,147 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2019-12-07 20:53:59,156 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:53:59,161 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:53:59,169 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:53:59,185 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:53:59,185 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:53:59,185 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:53:59,185 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:53:59,186 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:53:59,186 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:53:59,186 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:53:59,186 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:53:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 20:53:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 20:53:59,198 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:53:59,198 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 20:53:59,198 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:53:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:53:59,202 INFO L82 PathProgramCache]: Analyzing trace with hash 94495002, now seen corresponding path program 1 times [2019-12-07 20:53:59,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:53:59,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055885103] [2019-12-07 20:53:59,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:53:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:53:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:53:59,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055885103] [2019-12-07 20:53:59,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:53:59,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 20:53:59,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039676524] [2019-12-07 20:53:59,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:53:59,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:53:59,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:53:59,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:53:59,535 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-12-07 20:54:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:54:01,619 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-12-07 20:54:01,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:54:01,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 20:54:01,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:54:01,626 INFO L225 Difference]: With dead ends: 18 [2019-12-07 20:54:01,626 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 20:54:01,628 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:54:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 20:54:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-12-07 20:54:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 20:54:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 20:54:01,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-12-07 20:54:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:54:01,649 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 20:54:01,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:54:01,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 20:54:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 20:54:01,650 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:54:01,650 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 20:54:01,650 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:54:01,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:54:01,651 INFO L82 PathProgramCache]: Analyzing trace with hash 615564246, now seen corresponding path program 1 times [2019-12-07 20:54:01,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:54:01,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75577738] [2019-12-07 20:54:01,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:54:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:54:03,079 WARN L192 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 102 DAG size of output: 40 [2019-12-07 20:54:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:54:03,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75577738] [2019-12-07 20:54:03,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459708101] [2019-12-07 20:54:03,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/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 [2019-12-07 20:54:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:54:03,145 WARN L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 35 conjunts are in the unsatisfiable core [2019-12-07 20:54:03,149 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:54:03,391 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 24 [2019-12-07 20:54:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:54:03,437 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:54:03,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:03,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:03,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:03,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:03,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:03,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:03,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,514 WARN L192 SmtUtils]: Spent 4.99 s on a formula simplification. DAG size of input: 171 DAG size of output: 16 [2019-12-07 20:54:10,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:10,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:54:12,580 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse40 (mod c_ULTIMATE.start_main_~l~0 8))) (let ((.cse32 (mod c_ULTIMATE.start_main_~l~0 4294967296)) (.cse0 (= 0 .cse40))) (let ((.cse29 (mod (+ c_ULTIMATE.start_main_~l~0 2) 4294967296)) (.cse2 (not .cse0)) (.cse4 (< .cse32 0)) (.cse1 (<= 0 .cse32)) (.cse3 (= (mod (+ .cse40 4294967288) 4294967296) 0)) (.cse30 (mod (+ c_ULTIMATE.start_main_~l~0 1) 4294967296))) (and (or (and .cse0 (or .cse1 .cse0)) (and .cse2 .cse3 .cse4) (let ((.cse39 (mod .cse32 7))) (let ((.cse8 (= 0 .cse39))) (let ((.cse13 (not (= .cse30 (mod (+ c_ULTIMATE.start_main_~v1~0 c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~v2~0 c_ULTIMATE.start_main_~v3~0 c_ULTIMATE.start_main_~v4~0 c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~v5~0 1) 4294967296)))) (.cse7 (= 0 (mod .cse39 4294967296))) (.cse6 (not .cse8)) (.cse5 (= 0 (mod (+ .cse39 4294967289) 4294967296))) (.cse18 (= (mod (+ c_ULTIMATE.start_main_~v1~0 c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~v2~0 c_ULTIMATE.start_main_~v3~0 c_ULTIMATE.start_main_~v4~0 c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~v5~0 2) 4294967296) .cse29))) (and (or (and .cse5 .cse6 .cse4) (and .cse7 (or .cse1 .cse8)) (let ((.cse38 (mod .cse32 6))) (let ((.cse11 (= .cse38 0))) (let ((.cse9 (= (mod (+ .cse38 4294967290) 4294967296) 0)) (.cse12 (= 0 (mod .cse38 4294967296))) (.cse10 (not .cse11))) (and (or (and .cse9 .cse10 .cse4) (and (or .cse1 .cse11) .cse12) (let ((.cse37 (mod .cse32 5))) (let ((.cse15 (= 0 .cse37))) (let ((.cse14 (= 0 (mod (+ .cse37 4294967291) 4294967296))) (.cse16 (not .cse15)) (.cse17 (= 0 (mod .cse37 4294967296)))) (and (or .cse13 (and (or .cse1 (not .cse14) .cse15) (or (and .cse16 .cse4) (not .cse17))) .cse18) (or (let ((.cse36 (mod c_ULTIMATE.start_main_~l~0 4))) (let ((.cse33 (= .cse36 0))) (let ((.cse34 (not .cse33)) (.cse35 (= (mod (+ .cse36 4294967292) 4294967296) 0))) (and (or (let ((.cse31 (mod .cse32 3))) (let ((.cse24 (= .cse31 0))) (let ((.cse21 (= (mod .cse31 4294967296) 0)) (.cse23 (= (mod (+ .cse31 4294967293) 4294967296) 0)) (.cse22 (not .cse24)) (.cse19 (not (= .cse30 (mod (+ c_ULTIMATE.start_main_~v1~0 c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~v2~0 c_ULTIMATE.start_main_~v3~0 c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~v4~0 c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~v5~0 1) 4294967296)))) (.cse20 (= .cse29 (mod (+ c_ULTIMATE.start_main_~v1~0 c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~v2~0 c_ULTIMATE.start_main_~v3~0 c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~v4~0 c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~v5~0 2) 4294967296)))) (and (or .cse19 .cse20 (and (or (not .cse21) (and .cse22 .cse4)) (or .cse1 (not .cse23) .cse24))) (or (and (or .cse1 .cse24) .cse21) (and .cse23 .cse22 .cse4) (let ((.cse28 (mod c_ULTIMATE.start_main_~l~0 2))) (let ((.cse27 (= .cse28 0))) (let ((.cse25 (not .cse27)) (.cse26 (= 0 (mod (+ .cse28 4294967294) 4294967296)))) (and (or .cse19 .cse20 (and (or (and .cse4 .cse25) .cse25) (or .cse1 (not .cse26) .cse27))) (or .cse19 (and (or .cse1 .cse27) .cse27) .cse20 (and .cse4 .cse25 .cse26))))))))))) (and (or .cse1 .cse33) .cse33) (and .cse34 .cse35 .cse4)) (or .cse13 (and (or (and .cse34 .cse4) .cse34) (or .cse1 .cse33 (not .cse35))) .cse18))))) (and .cse14 .cse16 .cse4) (and .cse17 (or .cse1 .cse15)))))))) (or .cse13 (and (or .cse1 .cse11 (not .cse9)) (or (not .cse12) (and .cse10 .cse4))) .cse18)))))) (or .cse13 (and (or (not .cse7) (and .cse6 .cse4)) (or .cse1 .cse8 (not .cse5))) .cse18)))))) (or (= (mod (+ c_ULTIMATE.start_main_~v1~0 c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~v2~0 c_ULTIMATE.start_main_~v3~0 c_ULTIMATE.start_main_~v4~0 c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~v5~0 c_ULTIMATE.start_main_~j~0 2) 4294967296) .cse29) (and (or .cse2 (and .cse2 .cse4)) (or .cse1 .cse0 (not .cse3))) (not (= .cse30 (mod (+ c_ULTIMATE.start_main_~v1~0 c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~v2~0 c_ULTIMATE.start_main_~v3~0 c_ULTIMATE.start_main_~v4~0 c_ULTIMATE.start_main_~k~0 c_ULTIMATE.start_main_~v5~0 c_ULTIMATE.start_main_~j~0 1) 4294967296)))))))) is different from false [2019-12-07 20:54:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:54:12,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1364730857] [2019-12-07 20:54:12,602 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-12-07 20:54:12,603 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:54:12,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:54:12,611 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:54:12,611 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:54:16,204 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5700 conjuctions. This might take some time... [2019-12-07 20:54:24,422 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5780 conjuctions. This might take some time... [2019-12-07 20:54:28,830 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:54:29,087 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-12-07 20:54:29,148 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:54:29,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:54:29,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2019-12-07 20:54:29,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406870622] [2019-12-07 20:54:29,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 20:54:29,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:54:29,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 20:54:29,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2019-12-07 20:54:29,150 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-12-07 20:54:32,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:54:32,393 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-12-07 20:54:32,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 20:54:32,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-12-07 20:54:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:54:32,394 INFO L225 Difference]: With dead ends: 11 [2019-12-07 20:54:32,394 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:54:32,395 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2019-12-07 20:54:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:54:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:54:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:54:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:54:32,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 20:54:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:54:32,396 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:54:32,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 20:54:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:54:32,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:54:32,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:54:32,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:54:32,703 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-12-07 20:54:32,703 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:54:32,703 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 20:54:32,703 INFO L242 CegarLoopResult]: At program point L37(lines 11 38) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (let ((.cse0 (div ULTIMATE.start_main_~l~0 8)) (.cse1 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~v5~0 ULTIMATE.start_main_~j~0))) (and (<= ULTIMATE.start_main_~l~0 (* 8 .cse0)) (<= ULTIMATE.start_main_~l~0 .cse1) (< 0 (+ .cse0 1)) (<= .cse1 ULTIMATE.start_main_~l~0)))) [2019-12-07 20:54:32,703 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 20:54:32,703 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 36) the Hoare annotation is: (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (mod (+ ULTIMATE.start_main_~l~0 1) 4294967296) (mod (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~v5~0 1) 4294967296))) (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~v5~0 ULTIMATE.start_main_~j~0))) (and (<= (+ (* 8589934591 ULTIMATE.start_main_~l~0) ULTIMATE.start_main_~n~0) (+ (* 4294967296 (div ULTIMATE.start_main_~n~0 4294967296)) 20000001)) (= ULTIMATE.start_main_~k~0 0) (<= .cse0 ULTIMATE.start_main_~l~0) (= ULTIMATE.start_main_~v5~0 0) (= ULTIMATE.start_main_~v4~0 0) (= ULTIMATE.start_main_~l~0 0) (<= ~SIZE~0 (+ ULTIMATE.start_main_~l~0 20000001)) (<= ULTIMATE.start_main_~l~0 .cse0) (< 0 (+ (div ~SIZE~0 4294967296) 1)) (= ULTIMATE.start_main_~v1~0 0) (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~v3~0 0) (= ULTIMATE.start_main_~j~0 0)))) [2019-12-07 20:54:32,703 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:54:32,704 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 20:54:32,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:54:32 BoogieIcfgContainer [2019-12-07 20:54:32,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:54:32,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:54:32,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:54:32,718 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:54:32,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:53:59" (3/4) ... [2019-12-07 20:54:32,721 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:54:32,727 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-12-07 20:54:32,727 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 20:54:32,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bcd08c07-68e2-485f-8679-6624d9001f63/bin/utaipan/witness.graphml [2019-12-07 20:54:32,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:54:32,763 INFO L168 Benchmark]: Toolchain (without parser) took 41244.91 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 487.1 MB). Free memory was 943.5 MB in the beginning and 931.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 499.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:32,763 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:54:32,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:32,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:54:32,764 INFO L168 Benchmark]: Boogie Preprocessor took 17.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:54:32,765 INFO L168 Benchmark]: RCFGBuilder took 7383.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:32,765 INFO L168 Benchmark]: TraceAbstraction took 33576.05 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 366.0 MB). Free memory was 1.1 GB in the beginning and 935.8 MB in the end (delta: 134.5 MB). Peak memory consumption was 500.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:32,765 INFO L168 Benchmark]: Witness Printer took 44.21 ms. Allocated memory is still 1.5 GB. Free memory was 935.8 MB in the beginning and 931.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:32,767 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 7383.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33576.05 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 366.0 MB). Free memory was 1.1 GB in the beginning and 935.8 MB in the end (delta: 134.5 MB). Peak memory consumption was 500.5 MB. Max. memory is 11.5 GB. * Witness Printer took 44.21 ms. Allocated memory is still 1.5 GB. Free memory was 935.8 MB in the beginning and 931.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(0 == cond) || (((l <= 8 * (l / 8) && l <= v1 + v2 + i + v3 + k + v4 + v5 + j) && 0 < l / 8 + 1) && v1 + v2 + i + v3 + k + v4 + v5 + j <= l) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (1 == cond && (l + 1) % 4294967296 == (v1 + i + v2 + v3 + v4 + k + j + v5 + 1) % 4294967296) || ((((((((((((8589934591 * l + n <= 4294967296 * (n / 4294967296) + 20000001 && k == 0) && v1 + v2 + i + v3 + k + v4 + v5 + j <= l) && v5 == 0) && v4 == 0) && l == 0) && SIZE <= l + 20000001) && l <= v1 + v2 + i + v3 + k + v4 + v5 + j) && 0 < SIZE / 4294967296 + 1) && v1 == 0) && i == 0) && v3 == 0) && j == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 33.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 9 SDs, 0 SdLazy, 34 SolverSat, 9 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 137 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 147 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 2914 SizeOfPredicates, 13 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...