./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebfe90b23c5010baeb89836ab01df4fae83e4e4f ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:22:02,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:22:02,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:22:02,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:22:02,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:22:02,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:22:02,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:22:02,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:22:02,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:22:02,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:22:02,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:22:02,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:22:02,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:22:02,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:22:02,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:22:02,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:22:02,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:22:02,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:22:02,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:22:02,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:22:02,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:22:02,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:22:02,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:22:02,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:22:02,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:22:02,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:22:02,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:22:02,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:22:02,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:22:02,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:22:02,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:22:02,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:22:02,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:22:02,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:22:02,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:22:02,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:22:02,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:22:02,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:22:02,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:22:02,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:22:02,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:22:02,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:22:02,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:22:02,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:22:02,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:22:02,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:22:02,909 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:22:02,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:22:02,909 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:22:02,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:22:02,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:22:02,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:22:02,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:22:02,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:22:02,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:22:02,912 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:22:02,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:22:02,912 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:22:02,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:22:02,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:22:02,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:22:02,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:22:02,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:22:02,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:22:02,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:22:02,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:22:02,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:22:02,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:22:02,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:22:02,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:22:02,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebfe90b23c5010baeb89836ab01df4fae83e4e4f [2019-11-20 07:22:03,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:22:03,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:22:03,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:22:03,098 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:22:03,101 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:22:03,101 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/../../sv-benchmarks/c/loops-crafted-1/sumt4.c [2019-11-20 07:22:03,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/data/10a3b455d/e344c263787e4de98cbcf65418e57983/FLAGaf137117e [2019-11-20 07:22:03,539 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:22:03,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/sv-benchmarks/c/loops-crafted-1/sumt4.c [2019-11-20 07:22:03,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/data/10a3b455d/e344c263787e4de98cbcf65418e57983/FLAGaf137117e [2019-11-20 07:22:03,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/data/10a3b455d/e344c263787e4de98cbcf65418e57983 [2019-11-20 07:22:03,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:22:03,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:22:03,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:22:03,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:22:03,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:22:03,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:03" (1/1) ... [2019-11-20 07:22:03,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca737a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:03, skipping insertion in model container [2019-11-20 07:22:03,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:03" (1/1) ... [2019-11-20 07:22:03,964 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:22:03,982 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:22:04,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:22:04,216 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:22:04,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:22:04,357 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:22:04,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04 WrapperNode [2019-11-20 07:22:04,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:22:04,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:22:04,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:22:04,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:22:04,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:22:04,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:22:04,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:22:04,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:22:04,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... [2019-11-20 07:22:04,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:22:04,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:22:04,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:22:04,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:22:04,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/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 [2019-11-20 07:22:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:22:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:22:04,818 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:22:04,818 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 07:22:04,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:04 BoogieIcfgContainer [2019-11-20 07:22:04,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:22:04,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:22:04,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:22:04,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:22:04,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:22:03" (1/3) ... [2019-11-20 07:22:04,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f905895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:04, skipping insertion in model container [2019-11-20 07:22:04,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:04" (2/3) ... [2019-11-20 07:22:04,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f905895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:04, skipping insertion in model container [2019-11-20 07:22:04,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:04" (3/3) ... [2019-11-20 07:22:04,826 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt4.c [2019-11-20 07:22:04,852 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:22:04,858 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:22:04,874 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:22:04,909 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:22:04,909 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:22:04,909 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:22:04,909 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:22:04,910 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:22:04,910 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:22:04,910 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:22:04,910 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:22:04,925 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-20 07:22:04,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 07:22:04,931 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:22:04,931 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:22:04,932 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:22:04,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:22:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1807612808, now seen corresponding path program 1 times [2019-11-20 07:22:04,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:22:04,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101626674] [2019-11-20 07:22:04,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:22:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:22:05,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:22:05,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101626674] [2019-11-20 07:22:05,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:22:05,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:22:05,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318310265] [2019-11-20 07:22:05,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:22:05,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:22:05,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:22:05,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:22:05,075 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-11-20 07:22:05,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:22:05,089 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-20 07:22:05,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:22:05,091 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 07:22:05,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:22:05,101 INFO L225 Difference]: With dead ends: 24 [2019-11-20 07:22:05,102 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 07:22:05,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:22:05,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 07:22:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 07:22:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 07:22:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-11-20 07:22:05,133 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2019-11-20 07:22:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:22:05,133 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 07:22:05,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:22:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-11-20 07:22:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 07:22:05,134 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:22:05,134 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:22:05,134 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:22:05,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:22:05,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1806987197, now seen corresponding path program 1 times [2019-11-20 07:22:05,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:22:05,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828122417] [2019-11-20 07:22:05,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:22:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:22:05,391 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-11-20 07:22:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:22:05,528 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828122417] [2019-11-20 07:22:05,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:22:05,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:22:05,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616766938] [2019-11-20 07:22:05,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:22:05,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:22:05,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:22:05,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:22:05,531 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 5 states. [2019-11-20 07:22:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:22:07,679 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2019-11-20 07:22:07,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:22:07,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-20 07:22:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:22:07,680 INFO L225 Difference]: With dead ends: 20 [2019-11-20 07:22:07,680 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 07:22:07,681 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:22:07,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 07:22:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2019-11-20 07:22:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 07:22:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-20 07:22:07,686 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-11-20 07:22:07,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:22:07,686 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-20 07:22:07,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:22:07,687 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-11-20 07:22:07,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 07:22:07,687 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:22:07,688 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:22:07,688 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:22:07,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:22:07,688 INFO L82 PathProgramCache]: Analyzing trace with hash 87918451, now seen corresponding path program 1 times [2019-11-20 07:22:07,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:22:07,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692577169] [2019-11-20 07:22:07,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:22:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:22:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:22:08,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692577169] [2019-11-20 07:22:08,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225470720] [2019-11-20 07:22:08,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/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 [2019-11-20 07:22:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:22:08,129 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-20 07:22:08,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:22:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:22:08,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:22:08,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-11-20 07:22:08,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740857968] [2019-11-20 07:22:08,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 07:22:08,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:22:08,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 07:22:08,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-11-20 07:22:08,282 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 12 states. [2019-11-20 07:22:08,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:22:08,635 INFO L93 Difference]: Finished difference Result 28 states and 40 transitions. [2019-11-20 07:22:08,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 07:22:08,636 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 10 [2019-11-20 07:22:08,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:22:08,636 INFO L225 Difference]: With dead ends: 28 [2019-11-20 07:22:08,637 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:22:08,638 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2019-11-20 07:22:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:22:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:22:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:22:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:22:08,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-20 07:22:08,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:22:08,639 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:22:08,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 07:22:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:22:08,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:22:08,840 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:22:08,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:22:08,915 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:22:08,915 INFO L447 ceAbstractionStarter]: At program point L29(lines 11 30) the Hoare annotation is: true [2019-11-20 07:22:08,915 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 25) no Hoare annotation was computed. [2019-11-20 07:22:08,916 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 25) no Hoare annotation was computed. [2019-11-20 07:22:08,917 INFO L444 ceAbstractionStarter]: For program point L22-2(lines 18 25) no Hoare annotation was computed. [2019-11-20 07:22:08,917 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 25) no Hoare annotation was computed. [2019-11-20 07:22:08,917 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 27) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-20 07:22:08,917 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 27) no Hoare annotation was computed. [2019-11-20 07:22:08,917 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 07:22:08,917 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-20 07:22:08,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:22:08 BoogieIcfgContainer [2019-11-20 07:22:08,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:22:08,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:22:08,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:22:08,934 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:22:08,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:04" (3/4) ... [2019-11-20 07:22:08,943 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:22:08,958 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 07:22:08,959 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 07:22:09,007 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2862d975-ea9b-4d4d-be73-c1aa1b43dc5c/bin/uautomizer/witness.graphml [2019-11-20 07:22:09,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:22:09,008 INFO L168 Benchmark]: Toolchain (without parser) took 5062.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 948.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 113.1 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:09,009 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:22:09,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:09,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:22:09,010 INFO L168 Benchmark]: Boogie Preprocessor took 23.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:09,011 INFO L168 Benchmark]: RCFGBuilder took 392.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:09,011 INFO L168 Benchmark]: TraceAbstraction took 4113.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 948.0 MB in the end (delta: 132.6 MB). Peak memory consumption was 132.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:22:09,012 INFO L168 Benchmark]: Witness Printer took 73.25 ms. Allocated memory is still 1.1 GB. Free memory is still 948.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:22:09,014 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 411.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 392.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4113.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 948.0 MB in the end (delta: 132.6 MB). Peak memory consumption was 132.6 MB. Max. memory is 11.5 GB. * Witness Printer took 73.25 ms. Allocated memory is still 1.1 GB. Free memory is still 948.0 MB. There was no memory consumed. 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: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: i + v4 + k + j <= l && l <= i + v4 + k + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 43 SDslu, 19 SDs, 0 SdLazy, 99 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 17 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 91 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 4482 SizeOfPredicates, 7 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...