./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6ff697c57265298ce2261966fa58c440777fc865 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:39,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:39,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:39,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:39,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:39,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:39,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:39,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:39,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:39,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:39,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:39,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:39,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:39,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:39,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:39,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:39,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:39,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:39,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:39,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:39,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:39,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:39,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:39,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:39,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:39,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:39,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:39,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:39,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:39,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:39,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:39,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:39,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:39,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:39,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:39,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:39,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:39,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:39,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:39,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:39,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:39,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-25 08:54:39,911 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:39,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:39,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:39,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:39,913 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:39,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:39,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:39,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:39,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:39,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:39,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:39,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:39,915 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-25 08:54:39,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:39,915 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:39,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:39,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:39,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:39,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:39,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:39,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:39,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:39,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:39,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:39,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:39,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:54:39,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:39,918 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_3f52edff-b49d-45bf-824b-9ee4535a4108/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff697c57265298ce2261966fa58c440777fc865 [2019-11-25 08:54:40,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:40,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:40,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:40,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:40,075 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:40,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2019-11-25 08:54:40,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/data/2287c0a68/3f81eeaf2a9b43478b77cf0886f05ca1/FLAG5e1f7b368 [2019-11-25 08:54:40,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:40,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2019-11-25 08:54:40,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/data/2287c0a68/3f81eeaf2a9b43478b77cf0886f05ca1/FLAG5e1f7b368 [2019-11-25 08:54:40,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/data/2287c0a68/3f81eeaf2a9b43478b77cf0886f05ca1 [2019-11-25 08:54:40,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:40,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:40,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:40,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:40,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:40,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5715905e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40, skipping insertion in model container [2019-11-25 08:54:40,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:40,574 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:40,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:40,782 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:40,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:40,887 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:40,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40 WrapperNode [2019-11-25 08:54:40,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:40,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:40,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:40,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:40,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:40,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:40,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:40,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:40,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:40,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... [2019-11-25 08:54:41,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:41,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:41,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:41,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:41,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/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 [2019-11-25 08:54:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:41,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:41,436 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:41,436 INFO L284 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-25 08:54:41,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:41 BoogieIcfgContainer [2019-11-25 08:54:41,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:41,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:41,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:41,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:41,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:40" (1/3) ... [2019-11-25 08:54:41,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d98018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:41, skipping insertion in model container [2019-11-25 08:54:41,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:40" (2/3) ... [2019-11-25 08:54:41,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d98018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:41, skipping insertion in model container [2019-11-25 08:54:41,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:41" (3/3) ... [2019-11-25 08:54:41,443 INFO L109 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2019-11-25 08:54:41,449 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:41,454 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-25 08:54:41,464 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-25 08:54:41,485 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:41,485 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:41,485 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:41,485 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:41,486 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:41,486 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:41,486 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:41,486 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-11-25 08:54:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-25 08:54:41,507 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:41,508 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-25 08:54:41,508 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:41,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:41,513 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-25 08:54:41,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:41,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968727543] [2019-11-25 08:54:41,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:41,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968727543] [2019-11-25 08:54:41,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:41,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:54:41,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265493466] [2019-11-25 08:54:41,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:54:41,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:41,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:54:41,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:41,655 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2019-11-25 08:54:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:41,716 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2019-11-25 08:54:41,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:54:41,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-25 08:54:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:41,732 INFO L225 Difference]: With dead ends: 69 [2019-11-25 08:54:41,733 INFO L226 Difference]: Without dead ends: 59 [2019-11-25 08:54:41,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-25 08:54:41,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-25 08:54:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-25 08:54:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 93 transitions. [2019-11-25 08:54:41,782 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 93 transitions. Word has length 3 [2019-11-25 08:54:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:41,782 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 93 transitions. [2019-11-25 08:54:41,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:54:41,782 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2019-11-25 08:54:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:54:41,783 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:41,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:54:41,783 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:41,784 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2019-11-25 08:54:41,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:41,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628700469] [2019-11-25 08:54:41,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:41,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628700469] [2019-11-25 08:54:41,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:41,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:54:41,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218216268] [2019-11-25 08:54:41,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:54:41,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:41,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:54:41,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:41,814 INFO L87 Difference]: Start difference. First operand 59 states and 93 transitions. Second operand 3 states. [2019-11-25 08:54:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:41,873 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2019-11-25 08:54:41,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:54:41,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-25 08:54:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:41,876 INFO L225 Difference]: With dead ends: 113 [2019-11-25 08:54:41,876 INFO L226 Difference]: Without dead ends: 111 [2019-11-25 08:54:41,877 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:41,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-25 08:54:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2019-11-25 08:54:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-25 08:54:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2019-11-25 08:54:41,906 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 4 [2019-11-25 08:54:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:41,907 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2019-11-25 08:54:41,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:54:41,907 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2019-11-25 08:54:41,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:54:41,911 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:41,911 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:41,913 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:41,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:41,914 INFO L82 PathProgramCache]: Analyzing trace with hash 725490672, now seen corresponding path program 1 times [2019-11-25 08:54:41,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:41,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426399555] [2019-11-25 08:54:41,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:41,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426399555] [2019-11-25 08:54:41,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:41,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:54:41,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844819864] [2019-11-25 08:54:41,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:54:41,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:41,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:54:41,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:41,977 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 3 states. [2019-11-25 08:54:42,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:42,029 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2019-11-25 08:54:42,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:54:42,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-25 08:54:42,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:42,031 INFO L225 Difference]: With dead ends: 110 [2019-11-25 08:54:42,031 INFO L226 Difference]: Without dead ends: 109 [2019-11-25 08:54:42,032 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:42,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-25 08:54:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-11-25 08:54:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-25 08:54:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 175 transitions. [2019-11-25 08:54:42,059 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 175 transitions. Word has length 14 [2019-11-25 08:54:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:42,060 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 175 transitions. [2019-11-25 08:54:42,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:54:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2019-11-25 08:54:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:54:42,062 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:42,063 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,063 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1015374612, now seen corresponding path program 1 times [2019-11-25 08:54:42,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787637442] [2019-11-25 08:54:42,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:42,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787637442] [2019-11-25 08:54:42,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:42,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:54:42,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304219943] [2019-11-25 08:54:42,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:42,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:42,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:42,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:42,103 INFO L87 Difference]: Start difference. First operand 108 states and 175 transitions. Second operand 4 states. [2019-11-25 08:54:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:42,147 INFO L93 Difference]: Finished difference Result 108 states and 175 transitions. [2019-11-25 08:54:42,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:42,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-25 08:54:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:42,150 INFO L225 Difference]: With dead ends: 108 [2019-11-25 08:54:42,150 INFO L226 Difference]: Without dead ends: 107 [2019-11-25 08:54:42,150 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-11-25 08:54:42,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-25 08:54:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-25 08:54:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 174 transitions. [2019-11-25 08:54:42,160 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 174 transitions. Word has length 15 [2019-11-25 08:54:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:42,160 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 174 transitions. [2019-11-25 08:54:42,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 174 transitions. [2019-11-25 08:54:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:54:42,163 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:42,164 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,164 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:42,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,164 INFO L82 PathProgramCache]: Analyzing trace with hash -145038970, now seen corresponding path program 1 times [2019-11-25 08:54:42,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159281954] [2019-11-25 08:54:42,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:42,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159281954] [2019-11-25 08:54:42,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:42,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:54:42,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297978142] [2019-11-25 08:54:42,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:42,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:42,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:42,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:42,216 INFO L87 Difference]: Start difference. First operand 107 states and 174 transitions. Second operand 4 states. [2019-11-25 08:54:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:42,256 INFO L93 Difference]: Finished difference Result 115 states and 182 transitions. [2019-11-25 08:54:42,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:42,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-25 08:54:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:42,258 INFO L225 Difference]: With dead ends: 115 [2019-11-25 08:54:42,258 INFO L226 Difference]: Without dead ends: 114 [2019-11-25 08:54:42,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:42,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-25 08:54:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2019-11-25 08:54:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-25 08:54:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2019-11-25 08:54:42,269 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 16 [2019-11-25 08:54:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:42,269 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2019-11-25 08:54:42,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2019-11-25 08:54:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:54:42,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:42,271 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,272 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:42,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,272 INFO L82 PathProgramCache]: Analyzing trace with hash -145032788, now seen corresponding path program 1 times [2019-11-25 08:54:42,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447673759] [2019-11-25 08:54:42,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:42,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447673759] [2019-11-25 08:54:42,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:42,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:54:42,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353181340] [2019-11-25 08:54:42,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:42,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:42,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:42,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:42,313 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand 4 states. [2019-11-25 08:54:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:42,354 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2019-11-25 08:54:42,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:42,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-25 08:54:42,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:42,356 INFO L225 Difference]: With dead ends: 110 [2019-11-25 08:54:42,356 INFO L226 Difference]: Without dead ends: 109 [2019-11-25 08:54:42,356 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-25 08:54:42,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2019-11-25 08:54:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-25 08:54:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2019-11-25 08:54:42,363 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 16 [2019-11-25 08:54:42,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:42,364 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2019-11-25 08:54:42,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2019-11-25 08:54:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:54:42,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:42,365 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,366 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,367 INFO L82 PathProgramCache]: Analyzing trace with hash 817434134, now seen corresponding path program 1 times [2019-11-25 08:54:42,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258619951] [2019-11-25 08:54:42,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:42,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258619951] [2019-11-25 08:54:42,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061106247] [2019-11-25 08:54:42,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/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 [2019-11-25 08:54:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:42,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:54:42,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:42,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-25 08:54:42,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2019-11-25 08:54:42,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133872494] [2019-11-25 08:54:42,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:42,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:42,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:42,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:42,503 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 4 states. [2019-11-25 08:54:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:42,556 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2019-11-25 08:54:42,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:42,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-25 08:54:42,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:42,557 INFO L225 Difference]: With dead ends: 113 [2019-11-25 08:54:42,558 INFO L226 Difference]: Without dead ends: 106 [2019-11-25 08:54:42,558 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-25 08:54:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-25 08:54:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-25 08:54:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions. [2019-11-25 08:54:42,566 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 17 [2019-11-25 08:54:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:42,566 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 172 transitions. [2019-11-25 08:54:42,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions. [2019-11-25 08:54:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:54:42,568 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:42,568 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:54:42,779 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1943488504, now seen corresponding path program 1 times [2019-11-25 08:54:42,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867297710] [2019-11-25 08:54:42,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,829 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:42,831 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:54:42,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:42 BoogieIcfgContainer [2019-11-25 08:54:42,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:42,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:42,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:42,849 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:42,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:41" (3/4) ... [2019-11-25 08:54:42,851 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:54:42,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3f52edff-b49d-45bf-824b-9ee4535a4108/bin/uautomizer/witness.graphml [2019-11-25 08:54:42,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:42,889 INFO L168 Benchmark]: Toolchain (without parser) took 2352.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -56.6 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,890 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-25 08:54:42,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.09 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. [2019-11-25 08:54:42,891 INFO L168 Benchmark]: Boogie Preprocessor took 64.14 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. [2019-11-25 08:54:42,892 INFO L168 Benchmark]: RCFGBuilder took 425.33 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,893 INFO L168 Benchmark]: TraceAbstraction took 1410.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,893 INFO L168 Benchmark]: Witness Printer took 38.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:42,896 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 352.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.09 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 64.14 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 425.33 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1410.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. * Witness Printer took 38.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 6 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 587 SDtfs, 719 SDslu, 560 SDs, 0 SdLazy, 119 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 6024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2/4 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 incorrect! Received shutdown request...