/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loops/for_bounded_loop1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:36:52,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:36:52,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:36:52,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:36:52,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:36:52,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:36:52,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:36:52,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:36:52,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:36:52,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:36:52,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:36:52,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:36:52,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:36:52,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:36:52,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:36:52,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:36:52,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:36:52,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:36:52,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:36:52,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:36:52,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:36:52,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:36:52,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:36:52,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:36:52,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:36:52,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:36:52,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:36:52,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:36:52,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:36:52,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:36:52,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:36:52,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:36:52,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:36:52,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:36:52,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:36:52,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:36:52,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:36:52,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:36:52,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:36:52,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:36:52,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:36:52,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:36:52,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:36:52,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:36:52,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:36:52,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:36:52,315 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:36:52,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:36:52,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:36:52,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:36:52,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:36:52,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:36:52,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:36:52,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:36:52,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:36:52,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:36:52,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:36:52,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:36:52,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:36:52,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:36:52,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:36:52,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:36:52,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:36:52,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:36:52,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:36:52,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:36:52,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:36:52,319 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:36:52,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:36:52,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:36:52,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:36:52,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:36:52,698 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:36:52,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_bounded_loop1.c [2021-01-06 16:36:52,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9b4f7d028/f6023c9c09314fdb9bc7b6b2a3da06c5/FLAG8782335e3 [2021-01-06 16:36:53,319 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:36:53,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c [2021-01-06 16:36:53,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9b4f7d028/f6023c9c09314fdb9bc7b6b2a3da06c5/FLAG8782335e3 [2021-01-06 16:36:53,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9b4f7d028/f6023c9c09314fdb9bc7b6b2a3da06c5 [2021-01-06 16:36:53,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:36:53,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:36:53,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:36:53,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:36:53,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:36:53,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7665134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53, skipping insertion in model container [2021-01-06 16:36:53,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:36:53,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:36:53,876 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2021-01-06 16:36:53,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:36:53,902 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:36:53,916 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2021-01-06 16:36:53,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:36:53,937 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:36:53,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53 WrapperNode [2021-01-06 16:36:53,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:36:53,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:36:53,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:36:53,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:36:53,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:36:53,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:36:53,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:36:53,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:36:53,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:53,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... [2021-01-06 16:36:54,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:36:54,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:36:54,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:36:54,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:36:54,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:36:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:36:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:36:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:36:54,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:36:54,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:36:54,392 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-01-06 16:36:54,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:36:54 BoogieIcfgContainer [2021-01-06 16:36:54,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:36:54,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:36:54,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:36:54,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:36:54,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:36:53" (1/3) ... [2021-01-06 16:36:54,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b3f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:36:54, skipping insertion in model container [2021-01-06 16:36:54,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:36:53" (2/3) ... [2021-01-06 16:36:54,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b3f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:36:54, skipping insertion in model container [2021-01-06 16:36:54,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:36:54" (3/3) ... [2021-01-06 16:36:54,404 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2021-01-06 16:36:54,411 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:36:54,416 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-01-06 16:36:54,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 16:36:54,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:36:54,476 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:36:54,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:36:54,481 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:36:54,482 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:36:54,482 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:36:54,482 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:36:54,483 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:36:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-01-06 16:36:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 16:36:54,524 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:36:54,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 16:36:54,526 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:36:54,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:36:54,535 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2021-01-06 16:36:54,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:36:54,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410530439] [2021-01-06 16:36:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:36:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:36:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:36:54,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410530439] [2021-01-06 16:36:54,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:36:54,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:36:54,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750221563] [2021-01-06 16:36:54,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:36:54,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:36:54,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:36:54,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:36:54,800 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2021-01-06 16:36:54,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:36:54,887 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2021-01-06 16:36:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 16:36:54,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-01-06 16:36:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:36:54,898 INFO L225 Difference]: With dead ends: 48 [2021-01-06 16:36:54,899 INFO L226 Difference]: Without dead ends: 20 [2021-01-06 16:36:54,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:36:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-01-06 16:36:54,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-01-06 16:36:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-01-06 16:36:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-01-06 16:36:54,938 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2021-01-06 16:36:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:36:54,938 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-01-06 16:36:54,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:36:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-01-06 16:36:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 16:36:54,939 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:36:54,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:36:54,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:36:54,940 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:36:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:36:54,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1363182035, now seen corresponding path program 1 times [2021-01-06 16:36:54,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:36:54,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655949422] [2021-01-06 16:36:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:36:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:36:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:36:55,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655949422] [2021-01-06 16:36:55,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:36:55,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 16:36:55,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525670461] [2021-01-06 16:36:55,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 16:36:55,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:36:55,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 16:36:55,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 16:36:55,135 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2021-01-06 16:36:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:36:55,308 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-01-06 16:36:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 16:36:55,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-01-06 16:36:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:36:55,310 INFO L225 Difference]: With dead ends: 30 [2021-01-06 16:36:55,310 INFO L226 Difference]: Without dead ends: 28 [2021-01-06 16:36:55,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-01-06 16:36:55,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-01-06 16:36:55,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2021-01-06 16:36:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-01-06 16:36:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-01-06 16:36:55,318 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2021-01-06 16:36:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:36:55,318 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-01-06 16:36:55,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 16:36:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-01-06 16:36:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 16:36:55,319 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:36:55,319 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:36:55,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:36:55,320 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:36:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:36:55,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1645062140, now seen corresponding path program 1 times [2021-01-06 16:36:55,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:36:55,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096458374] [2021-01-06 16:36:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:36:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:36:55,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:36:55,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096458374] [2021-01-06 16:36:55,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601530393] [2021-01-06 16:36:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:36:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:36:55,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-01-06 16:36:55,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:36:55,724 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 16:36:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:36:55,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 16:36:55,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2021-01-06 16:36:55,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993943138] [2021-01-06 16:36:55,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 16:36:55,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:36:55,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 16:36:55,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-01-06 16:36:55,750 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2021-01-06 16:36:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:36:55,839 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-01-06 16:36:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 16:36:55,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2021-01-06 16:36:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:36:55,840 INFO L225 Difference]: With dead ends: 22 [2021-01-06 16:36:55,841 INFO L226 Difference]: Without dead ends: 18 [2021-01-06 16:36:55,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-01-06 16:36:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-01-06 16:36:55,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2021-01-06 16:36:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-01-06 16:36:55,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-01-06 16:36:55,847 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-01-06 16:36:55,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:36:55,848 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-01-06 16:36:55,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 16:36:55,848 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-01-06 16:36:55,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 16:36:55,849 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:36:55,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:36:56,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-06 16:36:56,064 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:36:56,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:36:56,066 INFO L82 PathProgramCache]: Analyzing trace with hash -542711943, now seen corresponding path program 1 times [2021-01-06 16:36:56,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:36:56,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619376782] [2021-01-06 16:36:56,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:36:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:36:56,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:36:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:36:56,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:36:56,139 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:36:56,140 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:36:56,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 16:36:56,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:36:56 BoogieIcfgContainer [2021-01-06 16:36:56,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:36:56,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:36:56,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:36:56,172 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:36:56,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:36:54" (3/4) ... [2021-01-06 16:36:56,175 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 16:36:56,226 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops/for_bounded_loop1.c-witness.graphml [2021-01-06 16:36:56,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:36:56,228 INFO L168 Benchmark]: Toolchain (without parser) took 2530.79 ms. Allocated memory is still 173.0 MB. Free memory was 149.2 MB in the beginning and 80.3 MB in the end (delta: 68.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,229 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 173.0 MB. Free memory is still 143.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:36:56,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.91 ms. Allocated memory is still 173.0 MB. Free memory was 149.0 MB in the beginning and 139.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.83 ms. Allocated memory is still 173.0 MB. Free memory was 139.2 MB in the beginning and 137.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,231 INFO L168 Benchmark]: Boogie Preprocessor took 23.39 ms. Allocated memory is still 173.0 MB. Free memory was 137.8 MB in the beginning and 136.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,232 INFO L168 Benchmark]: RCFGBuilder took 393.10 ms. Allocated memory is still 173.0 MB. Free memory was 136.7 MB in the beginning and 124.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,233 INFO L168 Benchmark]: TraceAbstraction took 1775.77 ms. Allocated memory is still 173.0 MB. Free memory was 123.5 MB in the beginning and 82.4 MB in the end (delta: 41.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,234 INFO L168 Benchmark]: Witness Printer took 54.01 ms. Allocated memory is still 173.0 MB. Free memory was 81.9 MB in the beginning and 80.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:36:56,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 173.0 MB. Free memory is still 143.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 239.91 ms. Allocated memory is still 173.0 MB. Free memory was 149.0 MB in the beginning and 139.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.83 ms. Allocated memory is still 173.0 MB. Free memory was 139.2 MB in the beginning and 137.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.39 ms. Allocated memory is still 173.0 MB. Free memory was 137.8 MB in the beginning and 136.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 393.10 ms. Allocated memory is still 173.0 MB. Free memory was 136.7 MB in the beginning and 124.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1775.77 ms. Allocated memory is still 173.0 MB. Free memory was 123.5 MB in the beginning and 82.4 MB in the end (delta: 41.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * Witness Printer took 54.01 ms. Allocated memory is still 173.0 MB. Free memory was 81.9 MB in the beginning and 80.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 [L22] COND TRUE i