/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:40:14,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:40:14,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:40:14,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-16 07:40:14,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:40:14,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:40:14,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:40:14,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:40:14,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:40:14,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:40:14,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:40:14,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:40:14,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:40:14,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:40:14,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:40:14,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:40:14,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:40:14,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 07:40:14,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 07:40:14,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 07:40:14,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 07:40:14,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 07:40:14,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 07:40:14,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 07:40:14,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 07:40:14,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:40:14,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:40:14,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:40:14,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:40:14,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:40:14,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:40:14,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:40:14,373 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:40:14,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:40:14,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:40:14,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:40:14,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:40:14,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:40:14,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:40:14,375 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:40:14,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:40:14,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:40:14,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:40:14,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:40:14,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:40:14,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:40:14,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:40:14,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:40:14,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:40:14,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:40:14,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:40:14,378 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:40:14,378 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:40:14,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:40:14,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:40:14,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:40:14,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:40:14,700 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:40:14,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_10.c [2021-04-16 07:40:14,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1feb77ce/91ea709a0b824afbbcc703e7e4c0bb16/FLAG6666a54bb [2021-04-16 07:40:15,254 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:40:15,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/mono-crafted_10.c [2021-04-16 07:40:15,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1feb77ce/91ea709a0b824afbbcc703e7e4c0bb16/FLAG6666a54bb [2021-04-16 07:40:15,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1feb77ce/91ea709a0b824afbbcc703e7e4c0bb16 [2021-04-16 07:40:15,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:40:15,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:40:15,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:40:15,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:40:15,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:40:15,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b808cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15, skipping insertion in model container [2021-04-16 07:40:15,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:40:15,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:40:15,842 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/mono-crafted_10.c[319,332] [2021-04-16 07:40:15,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:40:15,869 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:40:15,881 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/mono-crafted_10.c[319,332] [2021-04-16 07:40:15,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:40:15,898 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:40:15,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15 WrapperNode [2021-04-16 07:40:15,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:40:15,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:40:15,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:40:15,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:40:15,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... [2021-04-16 07:40:15,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:40:15,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:40:15,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:40:15,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:40:15,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:40:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:40:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:40:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:40:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:40:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:40:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:40:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:40:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:40:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:40:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:40:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:40:16,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:40:16,302 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 07:40:16,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:40:16 BoogieIcfgContainer [2021-04-16 07:40:16,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:40:16,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:40:16,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:40:16,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:40:16,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:40:15" (1/3) ... [2021-04-16 07:40:16,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793ad7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:40:16, skipping insertion in model container [2021-04-16 07:40:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:40:15" (2/3) ... [2021-04-16 07:40:16,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793ad7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:40:16, skipping insertion in model container [2021-04-16 07:40:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:40:16" (3/3) ... [2021-04-16 07:40:16,329 INFO L111 eAbstractionObserver]: Analyzing ICFG mono-crafted_10.c [2021-04-16 07:40:16,334 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:40:16,344 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:40:16,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:40:16,377 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:40:16,377 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:40:16,377 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:40:16,377 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:40:16,377 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:40:16,377 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:40:16,377 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:40:16,377 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:40:16,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 07:40:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-16 07:40:16,394 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:40:16,395 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:40:16,395 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:40:16,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:40:16,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2135496849, now seen corresponding path program 1 times [2021-04-16 07:40:16,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:40:16,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298737209] [2021-04-16 07:40:16,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:40:16,462 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:40:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:40:16,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:16,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:16,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:40:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:40:16,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:16,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:40:16,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298737209] [2021-04-16 07:40:16,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:40:16,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 07:40:16,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872938194] [2021-04-16 07:40:16,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 07:40:16,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:40:16,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 07:40:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 07:40:16,672 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:40:16,758 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2021-04-16 07:40:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 07:40:16,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-04-16 07:40:16,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:40:16,765 INFO L225 Difference]: With dead ends: 33 [2021-04-16 07:40:16,766 INFO L226 Difference]: Without dead ends: 14 [2021-04-16 07:40:16,769 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 07:40:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-04-16 07:40:16,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-04-16 07:40:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:16,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-04-16 07:40:16,799 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2021-04-16 07:40:16,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:40:16,799 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-04-16 07:40:16,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:16,800 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-04-16 07:40:16,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-16 07:40:16,802 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:40:16,802 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:40:16,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:40:16,803 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:40:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:40:16,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2145655580, now seen corresponding path program 1 times [2021-04-16 07:40:16,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:40:16,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562435956] [2021-04-16 07:40:16,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:40:16,816 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:40:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:40:16,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:16,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,908 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-04-16 07:40:16,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-16 07:40:16,945 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-04-16 07:40:16,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:16,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:40:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:40:16,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:16,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:40:16,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562435956] [2021-04-16 07:40:16,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:40:16,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 07:40:16,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075114237] [2021-04-16 07:40:16,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 07:40:16,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:40:16,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 07:40:16,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 07:40:16,992 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:40:17,085 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-04-16 07:40:17,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-16 07:40:17,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-04-16 07:40:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:40:17,087 INFO L225 Difference]: With dead ends: 25 [2021-04-16 07:40:17,087 INFO L226 Difference]: Without dead ends: 17 [2021-04-16 07:40:17,088 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 85.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 07:40:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-04-16 07:40:17,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-04-16 07:40:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-04-16 07:40:17,095 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2021-04-16 07:40:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:40:17,095 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-04-16 07:40:17,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-04-16 07:40:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-16 07:40:17,096 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:40:17,096 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:40:17,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 07:40:17,096 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:40:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:40:17,097 INFO L82 PathProgramCache]: Analyzing trace with hash -79339060, now seen corresponding path program 1 times [2021-04-16 07:40:17,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:40:17,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418473189] [2021-04-16 07:40:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:40:17,143 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-04-16 07:40:17,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:40:17,158 INFO L175 rdanLoopAcceleration]: Guard: Formula: (let ((.cse0 (mod v_main_~x~0_11 4294967296))) (and (< .cse0 5000000) (< .cse0 (mod v_main_~y~0_4 4294967296)))) InVars {main_~x~0=v_main_~x~0_11, main_~y~0=v_main_~y~0_4} OutVars{main_~x~0=v_main_~x~0_11, main_~y~0=v_main_~y~0_4} AuxVars[] AssignedVars[] [2021-04-16 07:40:17,171 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 88.2 percent of original size [2021-04-16 07:40:17,184 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,188 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,193 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,197 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,201 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,204 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,214 INFO L725 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-04-16 07:40:17,218 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:17,220 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:21,249 WARN L205 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 16 [2021-04-16 07:40:21,250 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:23,731 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-04-16 07:40:23,733 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:40:25,893 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2021-04-16 07:40:25,894 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 07:40:25,905 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:40:25,915 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,921 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 07:40:25,924 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-04-16 07:40:25,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,938 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-16 07:40:25,954 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-04-16 07:40:25,960 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,968 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,979 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,985 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:25,995 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:26,011 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:26,017 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 88.2 percent of original size 102 [2021-04-16 07:40:26,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:26,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-04-16 07:40:26,090 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:40:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 07:40:26,148 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 07:40:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 07:40:26,178 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 07:40:26,195 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-04-16 07:40:26,195 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 07:40:26,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-16 07:40:26,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 07:40:26 BoogieIcfgContainer [2021-04-16 07:40:26,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 07:40:26,206 INFO L168 Benchmark]: Toolchain (without parser) took 10545.15 ms. Allocated memory is still 186.6 MB. Free memory was 152.9 MB in the beginning and 138.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:26,207 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 186.6 MB. Free memory was 169.6 MB in the beginning and 169.5 MB in the end (delta: 114.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 07:40:26,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.24 ms. Allocated memory is still 186.6 MB. Free memory was 152.7 MB in the beginning and 143.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:26,208 INFO L168 Benchmark]: Boogie Preprocessor took 90.47 ms. Allocated memory is still 186.6 MB. Free memory was 143.5 MB in the beginning and 170.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:26,208 INFO L168 Benchmark]: RCFGBuilder took 309.19 ms. Allocated memory is still 186.6 MB. Free memory was 170.5 MB in the beginning and 157.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:26,208 INFO L168 Benchmark]: TraceAbstraction took 9896.30 ms. Allocated memory is still 186.6 MB. Free memory was 156.8 MB in the beginning and 138.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:26,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 186.6 MB. Free memory was 169.6 MB in the beginning and 169.5 MB in the end (delta: 114.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.24 ms. Allocated memory is still 186.6 MB. Free memory was 152.7 MB in the beginning and 143.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 90.47 ms. Allocated memory is still 186.6 MB. Free memory was 143.5 MB in the beginning and 170.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 309.19 ms. Allocated memory is still 186.6 MB. Free memory was 170.5 MB in the beginning and 157.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9896.30 ms. Allocated memory is still 186.6 MB. Free memory was 156.8 MB in the beginning and 138.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] unsigned int x = 0; [L9] unsigned int y = 10000000; [L10] unsigned int z=5000000; [L11] COND TRUE x=5000000) [L14] x++ [L11] COND FALSE !(x