./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/genady.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3a877d22 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/genady.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 287610e8766968d20807fa7cedb2876e161017ade0a329100f16c8240065cc6a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:52:26,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:52:26,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:52:26,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:52:26,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:52:26,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:52:26,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:52:26,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:52:26,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:52:26,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:52:26,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:52:26,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:52:26,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:52:26,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:52:26,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:52:26,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:52:26,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:52:26,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:52:26,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:52:26,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:52:26,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:52:26,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:52:26,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:52:26,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:52:26,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:52:26,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:52:26,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:52:26,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:52:26,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:52:26,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:52:26,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:52:26,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:52:26,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:52:26,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:52:26,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:52:26,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:52:26,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:52:26,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:52:26,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:52:26,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:52:26,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:52:26,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-15 16:52:26,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:52:26,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:52:26,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:52:26,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:52:26,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 16:52:26,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 16:52:26,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:52:26,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:52:26,571 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:52:26,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:52:26,572 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:52:26,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:52:26,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:52:26,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 16:52:26,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 16:52:26,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 16:52:26,574 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-15 16:52:26,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 16:52:26,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:52:26,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 16:52:26,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:52:26,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:52:26,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 16:52:26,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:52:26,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:52:26,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 16:52:26,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 16:52:26,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 16:52:26,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 16:52:26,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 16:52:26,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:52:26,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287610e8766968d20807fa7cedb2876e161017ade0a329100f16c8240065cc6a [2021-12-15 16:52:26,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:52:26,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:52:26,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:52:26,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:52:26,896 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:52:26,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/genady.c [2021-12-15 16:52:26,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f05c62035/73ff3fe69afe45d7b49128eb93d10da3/FLAG7f716f3da [2021-12-15 16:52:27,409 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:52:27,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/genady.c [2021-12-15 16:52:27,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f05c62035/73ff3fe69afe45d7b49128eb93d10da3/FLAG7f716f3da [2021-12-15 16:52:27,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f05c62035/73ff3fe69afe45d7b49128eb93d10da3 [2021-12-15 16:52:27,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:52:27,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:52:27,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:52:27,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:52:27,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:52:27,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155fb123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27, skipping insertion in model container [2021-12-15 16:52:27,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:52:27,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:52:27,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:52:27,604 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 16:52:27,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:52:27,635 INFO L208 MainTranslator]: Completed translation [2021-12-15 16:52:27,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27 WrapperNode [2021-12-15 16:52:27,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:52:27,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 16:52:27,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 16:52:27,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 16:52:27,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,661 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-12-15 16:52:27,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 16:52:27,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 16:52:27,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 16:52:27,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 16:52:27,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 16:52:27,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 16:52:27,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 16:52:27,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 16:52:27,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (1/1) ... [2021-12-15 16:52:27,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:52:27,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:27,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 16:52:27,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 16:52:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 16:52:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 16:52:27,813 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 16:52:27,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 16:52:27,929 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 16:52:27,935 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 16:52:27,936 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 16:52:27,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:52:27 BoogieIcfgContainer [2021-12-15 16:52:27,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 16:52:27,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 16:52:27,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 16:52:27,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 16:52:27,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 04:52:27" (1/3) ... [2021-12-15 16:52:27,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abf5547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 04:52:27, skipping insertion in model container [2021-12-15 16:52:27,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:52:27" (2/3) ... [2021-12-15 16:52:27,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abf5547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 04:52:27, skipping insertion in model container [2021-12-15 16:52:27,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:52:27" (3/3) ... [2021-12-15 16:52:27,947 INFO L111 eAbstractionObserver]: Analyzing ICFG genady.c [2021-12-15 16:52:27,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 16:52:27,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-15 16:52:28,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 16:52:28,010 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 16:52:28,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-15 16:52:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-15 16:52:28,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-15 16:52:28,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-15 16:52:28,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781897273] [2021-12-15 16:52:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781897273] [2021-12-15 16:52:28,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781897273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:52:28,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:52:28,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:52:28,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451828689] [2021-12-15 16:52:28,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:52:28,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:52:28,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:52:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,253 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:28,314 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-12-15 16:52:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:52:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-15 16:52:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:28,323 INFO L225 Difference]: With dead ends: 23 [2021-12-15 16:52:28,323 INFO L226 Difference]: Without dead ends: 14 [2021-12-15 16:52:28,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,333 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:28,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-15 16:52:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-15 16:52:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-12-15 16:52:28,365 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 3 [2021-12-15 16:52:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:28,366 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-12-15 16:52:28,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-12-15 16:52:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-15 16:52:28,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-15 16:52:28,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 16:52:28,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,371 INFO L85 PathProgramCache]: Analyzing trace with hash 925700, now seen corresponding path program 1 times [2021-12-15 16:52:28,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884355390] [2021-12-15 16:52:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884355390] [2021-12-15 16:52:28,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884355390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:52:28,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:52:28,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:52:28,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266748322] [2021-12-15 16:52:28,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:52:28,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:52:28,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:28,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:52:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,420 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:28,465 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-12-15 16:52:28,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:52:28,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-12-15 16:52:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:28,467 INFO L225 Difference]: With dead ends: 22 [2021-12-15 16:52:28,467 INFO L226 Difference]: Without dead ends: 21 [2021-12-15 16:52:28,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,469 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:28,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-15 16:52:28,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2021-12-15 16:52:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-12-15 16:52:28,478 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2021-12-15 16:52:28,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:28,479 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-12-15 16:52:28,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-12-15 16:52:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-15 16:52:28,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-15 16:52:28,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 16:52:28,482 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 889599142, now seen corresponding path program 1 times [2021-12-15 16:52:28,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621137988] [2021-12-15 16:52:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621137988] [2021-12-15 16:52:28,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621137988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:52:28,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:52:28,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:52:28,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711111068] [2021-12-15 16:52:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:52:28,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:52:28,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:28,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:52:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,507 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:28,526 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-12-15 16:52:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:52:28,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-15 16:52:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:28,527 INFO L225 Difference]: With dead ends: 20 [2021-12-15 16:52:28,527 INFO L226 Difference]: Without dead ends: 19 [2021-12-15 16:52:28,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,529 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:28,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:28,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-15 16:52:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-12-15 16:52:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-12-15 16:52:28,533 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2021-12-15 16:52:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:28,534 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-12-15 16:52:28,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-12-15 16:52:28,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-15 16:52:28,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 16:52:28,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 16:52:28,535 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1807769675, now seen corresponding path program 1 times [2021-12-15 16:52:28,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811548252] [2021-12-15 16:52:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811548252] [2021-12-15 16:52:28,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811548252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:52:28,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:52:28,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:52:28,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518669782] [2021-12-15 16:52:28,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:52:28,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:52:28,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:28,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:52:28,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,560 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:28,571 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-12-15 16:52:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:52:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-15 16:52:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:28,573 INFO L225 Difference]: With dead ends: 18 [2021-12-15 16:52:28,573 INFO L226 Difference]: Without dead ends: 17 [2021-12-15 16:52:28,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,575 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:28,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:28,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-15 16:52:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-15 16:52:28,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-12-15 16:52:28,579 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2021-12-15 16:52:28,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:28,579 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-12-15 16:52:28,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-12-15 16:52:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-15 16:52:28,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 16:52:28,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 16:52:28,581 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash 206285128, now seen corresponding path program 1 times [2021-12-15 16:52:28,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827052148] [2021-12-15 16:52:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827052148] [2021-12-15 16:52:28,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827052148] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:52:28,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:52:28,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:52:28,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340217677] [2021-12-15 16:52:28,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:52:28,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:52:28,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:52:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,604 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:28,613 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-12-15 16:52:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:52:28,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-15 16:52:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:28,614 INFO L225 Difference]: With dead ends: 17 [2021-12-15 16:52:28,614 INFO L226 Difference]: Without dead ends: 16 [2021-12-15 16:52:28,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,616 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:28,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-12-15 16:52:28,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-15 16:52:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-12-15 16:52:28,621 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2021-12-15 16:52:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:28,621 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-12-15 16:52:28,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-12-15 16:52:28,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 16:52:28,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 16:52:28,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 16:52:28,623 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2099871725, now seen corresponding path program 1 times [2021-12-15 16:52:28,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607459942] [2021-12-15 16:52:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607459942] [2021-12-15 16:52:28,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607459942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:52:28,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:52:28,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:52:28,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240313479] [2021-12-15 16:52:28,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:52:28,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:52:28,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:28,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:52:28,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,672 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:28,694 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-12-15 16:52:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:52:28,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 16:52:28,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:28,696 INFO L225 Difference]: With dead ends: 20 [2021-12-15 16:52:28,708 INFO L226 Difference]: Without dead ends: 19 [2021-12-15 16:52:28,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:52:28,709 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:28,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:28,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-15 16:52:28,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-15 16:52:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-12-15 16:52:28,713 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2021-12-15 16:52:28,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:28,713 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-12-15 16:52:28,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:28,714 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-12-15 16:52:28,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 16:52:28,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:28,714 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 16:52:28,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 16:52:28,714 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:28,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash -657900177, now seen corresponding path program 1 times [2021-12-15 16:52:28,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:28,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060293641] [2021-12-15 16:52:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060293641] [2021-12-15 16:52:28,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060293641] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 16:52:28,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802204152] [2021-12-15 16:52:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:28,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:28,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:52:28,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 16:52:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:28,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-15 16:52:28,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:52:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:28,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 16:52:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802204152] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 16:52:29,073 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 16:52:29,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2021-12-15 16:52:29,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501230215] [2021-12-15 16:52:29,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 16:52:29,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 16:52:29,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:29,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 16:52:29,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=58, Unknown=0, NotChecked=0, Total=110 [2021-12-15 16:52:29,075 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:29,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:29,133 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-12-15 16:52:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 16:52:29,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-15 16:52:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:29,134 INFO L225 Difference]: With dead ends: 31 [2021-12-15 16:52:29,134 INFO L226 Difference]: Without dead ends: 29 [2021-12-15 16:52:29,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=58, Unknown=0, NotChecked=0, Total=110 [2021-12-15 16:52:29,135 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:29,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 5 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-15 16:52:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2021-12-15 16:52:29,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-12-15 16:52:29,139 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2021-12-15 16:52:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:29,139 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-12-15 16:52:29,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-12-15 16:52:29,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 16:52:29,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:29,140 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-12-15 16:52:29,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 16:52:29,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:29,356 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:29,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash 342822242, now seen corresponding path program 1 times [2021-12-15 16:52:29,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:29,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947917906] [2021-12-15 16:52:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:29,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:29,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947917906] [2021-12-15 16:52:29,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947917906] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 16:52:29,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203349655] [2021-12-15 16:52:29,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:29,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:29,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:29,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:52:29,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 16:52:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:29,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 16:52:29,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:52:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 16:52:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203349655] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 16:52:29,526 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 16:52:29,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-15 16:52:29,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132717528] [2021-12-15 16:52:29,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 16:52:29,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 16:52:29,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 16:52:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 16:52:29,530 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:29,574 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-12-15 16:52:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 16:52:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-15 16:52:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:29,575 INFO L225 Difference]: With dead ends: 42 [2021-12-15 16:52:29,575 INFO L226 Difference]: Without dead ends: 41 [2021-12-15 16:52:29,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 16:52:29,576 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:29,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:29,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-12-15 16:52:29,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-12-15 16:52:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:29,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-12-15 16:52:29,582 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 16 [2021-12-15 16:52:29,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:29,582 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-12-15 16:52:29,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:29,582 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-12-15 16:52:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-15 16:52:29,583 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:29,583 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2021-12-15 16:52:29,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 16:52:29,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-15 16:52:29,788 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:29,788 INFO L85 PathProgramCache]: Analyzing trace with hash 26701382, now seen corresponding path program 1 times [2021-12-15 16:52:29,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:29,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79415806] [2021-12-15 16:52:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:29,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:29,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79415806] [2021-12-15 16:52:29,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79415806] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 16:52:29,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313533814] [2021-12-15 16:52:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:29,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:29,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:29,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:52:29,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 16:52:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:29,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 16:52:29,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:52:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 16:52:29,996 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:29,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313533814] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 16:52:29,997 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 16:52:29,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-15 16:52:29,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983785745] [2021-12-15 16:52:29,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 16:52:29,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 16:52:29,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:29,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 16:52:29,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-15 16:52:29,999 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:30,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:30,054 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-12-15 16:52:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 16:52:30,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-15 16:52:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:30,057 INFO L225 Difference]: With dead ends: 52 [2021-12-15 16:52:30,057 INFO L226 Difference]: Without dead ends: 51 [2021-12-15 16:52:30,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-15 16:52:30,058 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:30,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 23 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 16:52:30,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-15 16:52:30,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-12-15 16:52:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0625) internal successors, (51), 49 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-12-15 16:52:30,065 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 20 [2021-12-15 16:52:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:30,065 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-12-15 16:52:30,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-12-15 16:52:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-15 16:52:30,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:30,067 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2021-12-15 16:52:30,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 16:52:30,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:30,268 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1396677805, now seen corresponding path program 2 times [2021-12-15 16:52:30,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:30,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556470230] [2021-12-15 16:52:30,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:30,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-15 16:52:30,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:30,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556470230] [2021-12-15 16:52:30,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556470230] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 16:52:30,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175376354] [2021-12-15 16:52:30,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-15 16:52:30,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:30,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:30,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:52:30,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 16:52:30,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-15 16:52:30,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 16:52:30,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 16:52:30,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:52:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:30,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 16:52:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:30,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175376354] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 16:52:30,737 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 16:52:30,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 16 [2021-12-15 16:52:30,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25803897] [2021-12-15 16:52:30,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 16:52:30,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-15 16:52:30,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:30,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-15 16:52:30,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-12-15 16:52:30,740 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:30,922 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-12-15 16:52:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 16:52:30,931 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-12-15 16:52:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:30,934 INFO L225 Difference]: With dead ends: 50 [2021-12-15 16:52:30,934 INFO L226 Difference]: Without dead ends: 49 [2021-12-15 16:52:30,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=322, Invalid=548, Unknown=0, NotChecked=0, Total=870 [2021-12-15 16:52:30,938 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:30,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 8 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 16:52:30,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-12-15 16:52:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-12-15 16:52:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-12-15 16:52:30,962 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 37 [2021-12-15 16:52:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:30,963 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-12-15 16:52:30,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:30,963 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-12-15 16:52:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-15 16:52:30,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:52:30,965 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1] [2021-12-15 16:52:30,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 16:52:31,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:31,166 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-15 16:52:31,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:52:31,167 INFO L85 PathProgramCache]: Analyzing trace with hash -720119418, now seen corresponding path program 2 times [2021-12-15 16:52:31,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:52:31,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303432660] [2021-12-15 16:52:31,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:52:31,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:52:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:52:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:31,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:52:31,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303432660] [2021-12-15 16:52:31,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303432660] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 16:52:31,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120203673] [2021-12-15 16:52:31,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-15 16:52:31,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:52:31,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:52:31,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:52:31,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 16:52:31,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-15 16:52:31,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 16:52:31,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 16:52:31,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:52:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:31,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 16:52:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:52:31,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120203673] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 16:52:31,613 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 16:52:31,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2021-12-15 16:52:31,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859425059] [2021-12-15 16:52:31,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 16:52:31,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-15 16:52:31,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:52:31,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-15 16:52:31,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2021-12-15 16:52:31,615 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 24 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:52:31,815 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2021-12-15 16:52:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-15 16:52:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 24 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-12-15 16:52:31,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:52:31,816 INFO L225 Difference]: With dead ends: 62 [2021-12-15 16:52:31,816 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 16:52:31,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=451, Invalid=955, Unknown=0, NotChecked=0, Total=1406 [2021-12-15 16:52:31,818 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 62 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 16:52:31,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 8 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 16:52:31,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 16:52:31,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 16:52:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 16:52:31,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-12-15 16:52:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:52:31,819 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 16:52:31,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 24 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:52:31,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 16:52:31,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 16:52:31,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-12-15 16:52:31,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-12-15 16:52:31,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-12-15 16:52:31,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-12-15 16:52:31,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-12-15 16:52:31,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-12-15 16:52:31,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 16:52:32,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-15 16:52:32,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 16:52:32,157 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-12-15 16:52:32,157 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 16:52:32,157 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2021-12-15 16:52:32,157 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-12-15 16:52:32,157 INFO L854 garLoopResultBuilder]: At program point L19(lines 11 20) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| (+ |ULTIMATE.start_main_~j~0#1| 9999)) [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L854 garLoopResultBuilder]: At program point L15-4(lines 15 18) the Hoare annotation is: (let ((.cse0 (<= 10001 (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~i~0#1|)))) (or (and (<= |ULTIMATE.start_main_~i~0#1| 9995) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 9995)) (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 9996) (<= |ULTIMATE.start_main_~j~0#1| 5)) (and (<= |ULTIMATE.start_main_~i~0#1| 9998) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 3)) (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 9997) (<= |ULTIMATE.start_main_~j~0#1| 4)) (and (<= |ULTIMATE.start_main_~i~0#1| 10000) (<= (+ |ULTIMATE.start_main_~j~0#1| 9999) |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~j~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 9999) (<= |ULTIMATE.start_main_~j~0#1| 2)))) [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point L15-5(lines 15 18) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2021-12-15 16:52:32,158 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 16:52:32,159 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-12-15 16:52:32,159 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 16:52:32,159 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-12-15 16:52:32,159 INFO L858 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2021-12-15 16:52:32,163 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 16:52:32,165 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 16:52:32,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 04:52:32 BoogieIcfgContainer [2021-12-15 16:52:32,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 16:52:32,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 16:52:32,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 16:52:32,184 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 16:52:32,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:52:27" (3/4) ... [2021-12-15 16:52:32,187 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 16:52:32,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 16:52:32,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-15 16:52:32,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 16:52:32,222 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 16:52:32,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 16:52:32,223 INFO L158 Benchmark]: Toolchain (without parser) took 4791.78ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 59.7MB in the beginning and 44.6MB in the end (delta: 15.1MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2021-12-15 16:52:32,223 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:52:32,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.03ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 79.1MB in the end (delta: -19.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-12-15 16:52:32,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.99ms. Allocated memory is still 100.7MB. Free memory was 79.1MB in the beginning and 77.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:52:32,224 INFO L158 Benchmark]: Boogie Preprocessor took 18.28ms. Allocated memory is still 100.7MB. Free memory was 77.9MB in the beginning and 76.9MB in the end (delta: 989.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:52:32,224 INFO L158 Benchmark]: RCFGBuilder took 255.18ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.9MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:52:32,225 INFO L158 Benchmark]: TraceAbstraction took 4242.00ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 75.6MB in the beginning and 47.8MB in the end (delta: 27.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-12-15 16:52:32,225 INFO L158 Benchmark]: Witness Printer took 38.68ms. Allocated memory is still 125.8MB. Free memory was 47.8MB in the beginning and 44.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:52:32,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.03ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 79.1MB in the end (delta: -19.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.99ms. Allocated memory is still 100.7MB. Free memory was 79.1MB in the beginning and 77.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.28ms. Allocated memory is still 100.7MB. Free memory was 77.9MB in the beginning and 76.9MB in the end (delta: 989.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.18ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.9MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4242.00ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 75.6MB in the beginning and 47.8MB in the end (delta: 27.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 38.68ms. Allocated memory is still 125.8MB. Free memory was 47.8MB in the beginning and 44.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 11, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 56 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=9, InterpolantAutomatonStates: 71, 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, 11 MinimizatonAttempts, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 11 NumberOfFragments, 78 HoareAnnotationTreeSize, 2 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 350 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 1432 SizeOfPredicates, 2 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 247/669 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((((i <= 9995 && 10001 <= j + i) && j <= 9995) || ((10001 <= j + i && i <= 9996) && j <= 5)) || ((i <= 9998 && 10001 <= j + i) && j <= 3)) || ((10001 <= j + i && i <= 9997) && j <= 4)) || ((i <= 10000 && j + 9999 <= i) && 1 <= j)) || ((10001 <= j + i && i <= 9999) && j <= 2) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: i <= j + 9999 RESULT: Ultimate proved your program to be correct! [2021-12-15 16:52:32,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE