./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.0-5485861 [2020-10-26 04:05:40,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:05:40,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:05:40,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:05:40,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:05:40,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:05:40,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:05:40,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:05:40,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:05:40,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:05:40,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:05:40,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:05:40,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:05:40,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:05:40,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:05:40,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:05:40,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:05:40,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:05:40,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:05:40,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:05:40,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:05:40,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:05:40,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:05:40,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:05:40,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:05:40,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:05:40,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:05:40,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:05:40,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:05:40,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:05:40,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:05:40,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:05:40,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:05:40,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:05:40,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:05:40,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:05:40,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:05:40,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:05:40,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:05:40,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:05:40,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:05:40,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:05:40,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:05:40,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:05:40,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:05:40,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:05:40,731 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:05:40,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:05:40,732 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:05:40,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:05:40,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:05:40,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:05:40,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:05:40,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:05:40,736 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:05:40,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:05:40,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:05:40,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:05:40,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:05:40,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:05:40,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:05:40,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:05:40,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:05:40,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:05:40,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:05:40,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:05:40,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:05:40,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:05:40,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:05:40,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:05:40,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff697c57265298ce2261966fa58c440777fc865 [2020-10-26 04:05:41,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:05:41,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:05:41,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:05:41,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:05:41,297 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:05:41,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-10-26 04:05:41,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfa62c6b/77722f0261924a93848aacaaebc32415/FLAGe15ba6beb [2020-10-26 04:05:42,036 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:05:42,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-10-26 04:05:42,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfa62c6b/77722f0261924a93848aacaaebc32415/FLAGe15ba6beb [2020-10-26 04:05:42,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfa62c6b/77722f0261924a93848aacaaebc32415 [2020-10-26 04:05:42,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:05:42,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:05:42,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:05:42,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:05:42,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:05:42,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf5309f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42, skipping insertion in model container [2020-10-26 04:05:42,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:05:42,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:05:42,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:05:42,647 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:05:42,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:05:42,701 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:05:42,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42 WrapperNode [2020-10-26 04:05:42,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:05:42,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:05:42,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:05:42,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:05:42,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:05:42,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:05:42,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:05:42,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:05:42,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... [2020-10-26 04:05:42,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:05:42,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:05:42,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:05:42,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:05:42,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:05:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:05:43,515 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:05:43,516 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-26 04:05:43,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:43 BoogieIcfgContainer [2020-10-26 04:05:43,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:05:43,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:05:43,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:05:43,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:05:43,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:05:42" (1/3) ... [2020-10-26 04:05:43,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f1fa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:05:43, skipping insertion in model container [2020-10-26 04:05:43,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:05:42" (2/3) ... [2020-10-26 04:05:43,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f1fa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:05:43, skipping insertion in model container [2020-10-26 04:05:43,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:43" (3/3) ... [2020-10-26 04:05:43,536 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-10-26 04:05:43,549 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:05:43,559 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-26 04:05:43,574 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-26 04:05:43,617 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:05:43,618 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:05:43,618 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:05:43,618 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:05:43,618 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:05:43,619 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:05:43,619 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:05:43,619 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:05:43,640 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-26 04:05:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:05:43,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:43,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:05:43,648 INFO L429 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]=== [2020-10-26 04:05:43,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:43,659 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2020-10-26 04:05:43,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:43,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297693807] [2020-10-26 04:05:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:43,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297693807] [2020-10-26 04:05:43,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:43,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:05:43,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084778487] [2020-10-26 04:05:43,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:43,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:43,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:43,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:43,861 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2020-10-26 04:05:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:43,917 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2020-10-26 04:05:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:43,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-26 04:05:43,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:43,931 INFO L225 Difference]: With dead ends: 69 [2020-10-26 04:05:43,931 INFO L226 Difference]: Without dead ends: 59 [2020-10-26 04:05:43,939 INFO L677 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 [2020-10-26 04:05:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-26 04:05:43,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-26 04:05:43,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-26 04:05:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 93 transitions. [2020-10-26 04:05:43,984 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 93 transitions. Word has length 3 [2020-10-26 04:05:43,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:43,984 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 93 transitions. [2020-10-26 04:05:43,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2020-10-26 04:05:43,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:05:43,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:43,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:05:43,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:05:43,986 INFO L429 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]=== [2020-10-26 04:05:43,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:43,987 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2020-10-26 04:05:43,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:43,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411831671] [2020-10-26 04:05:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411831671] [2020-10-26 04:05:44,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:44,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:05:44,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302176350] [2020-10-26 04:05:44,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:44,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:44,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:44,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:44,014 INFO L87 Difference]: Start difference. First operand 59 states and 93 transitions. Second operand 3 states. [2020-10-26 04:05:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:44,060 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2020-10-26 04:05:44,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:44,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 04:05:44,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:44,063 INFO L225 Difference]: With dead ends: 113 [2020-10-26 04:05:44,064 INFO L226 Difference]: Without dead ends: 111 [2020-10-26 04:05:44,065 INFO L677 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 [2020-10-26 04:05:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-26 04:05:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2020-10-26 04:05:44,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-26 04:05:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2020-10-26 04:05:44,082 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 4 [2020-10-26 04:05:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:44,082 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2020-10-26 04:05:44,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2020-10-26 04:05:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 04:05:44,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:44,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:44,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:05:44,085 INFO L429 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]=== [2020-10-26 04:05:44,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:44,086 INFO L82 PathProgramCache]: Analyzing trace with hash 725490672, now seen corresponding path program 1 times [2020-10-26 04:05:44,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:44,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803953578] [2020-10-26 04:05:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803953578] [2020-10-26 04:05:44,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:44,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:05:44,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729542842] [2020-10-26 04:05:44,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:05:44,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:05:44,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:05:44,162 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 3 states. [2020-10-26 04:05:44,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:44,219 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2020-10-26 04:05:44,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:05:44,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-26 04:05:44,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:44,225 INFO L225 Difference]: With dead ends: 110 [2020-10-26 04:05:44,225 INFO L226 Difference]: Without dead ends: 109 [2020-10-26 04:05:44,231 INFO L677 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 [2020-10-26 04:05:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-26 04:05:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2020-10-26 04:05:44,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-26 04:05:44,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 175 transitions. [2020-10-26 04:05:44,260 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 175 transitions. Word has length 14 [2020-10-26 04:05:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:44,261 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 175 transitions. [2020-10-26 04:05:44,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:05:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2020-10-26 04:05:44,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 04:05:44,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:44,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:44,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:05:44,266 INFO L429 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]=== [2020-10-26 04:05:44,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:44,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1015374612, now seen corresponding path program 1 times [2020-10-26 04:05:44,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:44,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874809926] [2020-10-26 04:05:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874809926] [2020-10-26 04:05:44,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:44,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:05:44,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583441478] [2020-10-26 04:05:44,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:44,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:44,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:44,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:05:44,311 INFO L87 Difference]: Start difference. First operand 108 states and 175 transitions. Second operand 4 states. [2020-10-26 04:05:44,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:44,352 INFO L93 Difference]: Finished difference Result 108 states and 175 transitions. [2020-10-26 04:05:44,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:44,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-26 04:05:44,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:44,354 INFO L225 Difference]: With dead ends: 108 [2020-10-26 04:05:44,355 INFO L226 Difference]: Without dead ends: 107 [2020-10-26 04:05:44,355 INFO L677 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 [2020-10-26 04:05:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-26 04:05:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-26 04:05:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-26 04:05:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 174 transitions. [2020-10-26 04:05:44,366 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 174 transitions. Word has length 15 [2020-10-26 04:05:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:44,367 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 174 transitions. [2020-10-26 04:05:44,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 174 transitions. [2020-10-26 04:05:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 04:05:44,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:44,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:44,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:05:44,369 INFO L429 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]=== [2020-10-26 04:05:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:44,370 INFO L82 PathProgramCache]: Analyzing trace with hash -145038970, now seen corresponding path program 1 times [2020-10-26 04:05:44,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:44,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839322395] [2020-10-26 04:05:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839322395] [2020-10-26 04:05:44,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:44,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:05:44,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205408991] [2020-10-26 04:05:44,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:44,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:44,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:44,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:05:44,418 INFO L87 Difference]: Start difference. First operand 107 states and 174 transitions. Second operand 4 states. [2020-10-26 04:05:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:44,469 INFO L93 Difference]: Finished difference Result 115 states and 182 transitions. [2020-10-26 04:05:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:44,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-26 04:05:44,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:44,472 INFO L225 Difference]: With dead ends: 115 [2020-10-26 04:05:44,472 INFO L226 Difference]: Without dead ends: 114 [2020-10-26 04:05:44,472 INFO L677 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 [2020-10-26 04:05:44,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-26 04:05:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2020-10-26 04:05:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-26 04:05:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2020-10-26 04:05:44,485 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 16 [2020-10-26 04:05:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:44,485 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2020-10-26 04:05:44,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2020-10-26 04:05:44,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 04:05:44,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:44,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:44,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 04:05:44,487 INFO L429 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]=== [2020-10-26 04:05:44,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:44,488 INFO L82 PathProgramCache]: Analyzing trace with hash -145032788, now seen corresponding path program 1 times [2020-10-26 04:05:44,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:44,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578459702] [2020-10-26 04:05:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578459702] [2020-10-26 04:05:44,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:05:44,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:05:44,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315999097] [2020-10-26 04:05:44,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:44,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:44,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:05:44,550 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand 4 states. [2020-10-26 04:05:44,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:44,589 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2020-10-26 04:05:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:44,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-26 04:05:44,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:44,591 INFO L225 Difference]: With dead ends: 110 [2020-10-26 04:05:44,591 INFO L226 Difference]: Without dead ends: 109 [2020-10-26 04:05:44,592 INFO L677 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 [2020-10-26 04:05:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-26 04:05:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-10-26 04:05:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-26 04:05:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2020-10-26 04:05:44,601 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 16 [2020-10-26 04:05:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:44,602 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2020-10-26 04:05:44,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:44,602 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2020-10-26 04:05:44,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 04:05:44,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:44,603 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:44,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 04:05:44,604 INFO L429 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]=== [2020-10-26 04:05:44,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:44,605 INFO L82 PathProgramCache]: Analyzing trace with hash 817434134, now seen corresponding path program 1 times [2020-10-26 04:05:44,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:44,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494437897] [2020-10-26 04:05:44,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494437897] [2020-10-26 04:05:44,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284497667] [2020-10-26 04:05:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:05:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:05:44,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:05:44,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:05:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:05:44,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 04:05:44,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2020-10-26 04:05:44,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962426738] [2020-10-26 04:05:44,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:05:44,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:05:44,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:05:44,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:05:44,797 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 4 states. [2020-10-26 04:05:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:05:44,838 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2020-10-26 04:05:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:05:44,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-26 04:05:44,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:05:44,841 INFO L225 Difference]: With dead ends: 113 [2020-10-26 04:05:44,841 INFO L226 Difference]: Without dead ends: 106 [2020-10-26 04:05:44,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 04:05:44,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-26 04:05:44,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-26 04:05:44,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-26 04:05:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions. [2020-10-26 04:05:44,850 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 17 [2020-10-26 04:05:44,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:05:44,851 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 172 transitions. [2020-10-26 04:05:44,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:05:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions. [2020-10-26 04:05:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 04:05:44,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:05:44,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:05:45,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-26 04:05:45,068 INFO L429 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]=== [2020-10-26 04:05:45,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:05:45,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1943488504, now seen corresponding path program 1 times [2020-10-26 04:05:45,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:05:45,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810739990] [2020-10-26 04:05:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:05:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:05:45,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:05:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:05:45,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:05:45,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:05:45,106 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:05:45,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 04:05:45,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:05:45 BoogieIcfgContainer [2020-10-26 04:05:45,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:05:45,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:05:45,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:05:45,128 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:05:45,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:05:43" (3/4) ... [2020-10-26 04:05:45,131 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 04:05:45,172 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:05:45,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:05:45,175 INFO L168 Benchmark]: Toolchain (without parser) took 2749.29 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 23.9 MB in the beginning and 32.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:45,176 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 33.6 MB. Free memory was 20.5 MB in the beginning and 20.5 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:05:45,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.41 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 23.7 MB in the end (delta: -381.2 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:45,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.10 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 31.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:45,178 INFO L168 Benchmark]: Boogie Preprocessor took 34.86 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 30.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:05:45,179 INFO L168 Benchmark]: RCFGBuilder took 710.68 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.1 MB in the beginning and 28.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:45,180 INFO L168 Benchmark]: TraceAbstraction took 1603.95 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.8 MB in the beginning and 34.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:45,181 INFO L168 Benchmark]: Witness Printer took 45.43 ms. Allocated memory is still 69.2 MB. Free memory was 34.1 MB in the beginning and 32.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:05:45,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 33.6 MB. Free memory was 20.5 MB in the beginning and 20.5 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.41 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 23.7 MB in the end (delta: -381.2 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.10 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 31.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.86 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 30.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 710.68 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.1 MB in the beginning and 28.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1603.95 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.8 MB in the beginning and 34.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Witness Printer took 45.43 ms. Allocated memory is still 69.2 MB. Free memory was 34.1 MB in the beginning and 32.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 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, 0.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 6856 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...