/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_while_int.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:40:47,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:40:47,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:40:47,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:40:47,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:40:47,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:40:47,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:40:47,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:40:47,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:40:47,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:40:47,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:40:47,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:40:47,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:40:47,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:40:47,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:40:47,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:40:47,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:40:47,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:40:47,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:40:47,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:40:47,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:40:47,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:40:47,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:40:47,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:40:47,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:40:47,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:40:47,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:40:47,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:40:47,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:40:47,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 06:40:47,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:40:47,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:40:47,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:40:47,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:40:47,376 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:40:47,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:40:47,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:40:47,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:40:47,378 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:40:47,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:40:47,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:40:47,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:40:47,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:40:47,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:40:47,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:40:47,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:40:47,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:40:47,380 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:40:47,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:40:47,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:40:47,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:40:47,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:40:47,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:40:47,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:40:47,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:40:47,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:40:47,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:40:47,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:40:47,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:40:47,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:40:47,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:40:47,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:40:47,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:40:47,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:40:47,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:40:47,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:40:47,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:40:47,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:40:47,939 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:40:47,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-09-25 06:40:48,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05ddb619c/f7eb0ecf8c3849f9b8fcb9c4960a1166/FLAG0f6446098 [2020-09-25 06:40:48,569 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:40:48,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-09-25 06:40:48,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05ddb619c/f7eb0ecf8c3849f9b8fcb9c4960a1166/FLAG0f6446098 [2020-09-25 06:40:48,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05ddb619c/f7eb0ecf8c3849f9b8fcb9c4960a1166 [2020-09-25 06:40:48,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:40:48,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:40:48,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:40:48,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:40:48,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:40:48,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:40:48" (1/1) ... [2020-09-25 06:40:48,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d4521a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:48, skipping insertion in model container [2020-09-25 06:40:48,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:40:48" (1/1) ... [2020-09-25 06:40:48,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:40:49,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:40:49,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:40:49,270 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:40:49,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:40:49,301 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:40:49,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49 WrapperNode [2020-09-25 06:40:49,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:40:49,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:40:49,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:40:49,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:40:49,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... [2020-09-25 06:40:49,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:40:49,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:40:49,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:40:49,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:40:49,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:40:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:40:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:40:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 06:40:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure check_error [2020-09-25 06:40:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:40:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:40:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 06:40:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure check_error [2020-09-25 06:40:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:40:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:40:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:40:49,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:40:49,698 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:40:49,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:40:49 BoogieIcfgContainer [2020-09-25 06:40:49,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:40:49,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:40:49,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:40:49,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:40:49,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:40:48" (1/3) ... [2020-09-25 06:40:49,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60db0cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:40:49, skipping insertion in model container [2020-09-25 06:40:49,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:40:49" (2/3) ... [2020-09-25 06:40:49,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60db0cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:40:49, skipping insertion in model container [2020-09-25 06:40:49,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:40:49" (3/3) ... [2020-09-25 06:40:49,713 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.i [2020-09-25 06:40:49,726 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:40:49,737 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:40:49,767 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:40:49,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:40:49,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:40:49,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:40:49,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:40:49,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:40:49,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:40:49,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:40:49,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:40:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 06:40:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-25 06:40:49,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:49,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:40:49,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:49,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:49,854 INFO L82 PathProgramCache]: Analyzing trace with hash -459927168, now seen corresponding path program 1 times [2020-09-25 06:40:49,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:49,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870135929] [2020-09-25 06:40:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:50,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:50,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:50,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:40:50,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:50,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 06:40:50,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:50,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:40:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:40:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:40:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:40:50,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:50,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:50,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:50,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:40:50,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:40:50,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:50,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:40:50,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870135929] [2020-09-25 06:40:50,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:40:50,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:40:50,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507293763] [2020-09-25 06:40:50,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:40:50,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:50,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:40:50,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:40:50,311 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2020-09-25 06:40:50,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:50,487 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2020-09-25 06:40:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:40:50,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-25 06:40:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:50,500 INFO L225 Difference]: With dead ends: 53 [2020-09-25 06:40:50,500 INFO L226 Difference]: Without dead ends: 29 [2020-09-25 06:40:50,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:40:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-25 06:40:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2020-09-25 06:40:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 06:40:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-09-25 06:40:50,550 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 14 [2020-09-25 06:40:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:50,550 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-09-25 06:40:50,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:40:50,551 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-09-25 06:40:50,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 06:40:50,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:50,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:40:50,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:40:50,553 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:50,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:50,553 INFO L82 PathProgramCache]: Analyzing trace with hash 299235803, now seen corresponding path program 1 times [2020-09-25 06:40:50,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:50,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293876682] [2020-09-25 06:40:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:50,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:50,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:50,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:40:50,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 06:40:50,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:50,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:40:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:40:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:40:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:50,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:50,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:50,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:40:50,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:40:50,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:50,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:50,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:40:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:50,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:50,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:50,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:40:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:40:50,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:50,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:40:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:40:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:40:50,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293876682] [2020-09-25 06:40:50,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:40:50,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:40:50,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769070320] [2020-09-25 06:40:50,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:40:50,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:50,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:40:50,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:40:50,929 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2020-09-25 06:40:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:51,068 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2020-09-25 06:40:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:40:51,069 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-25 06:40:51,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:51,070 INFO L225 Difference]: With dead ends: 41 [2020-09-25 06:40:51,071 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 06:40:51,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:40:51,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 06:40:51,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-09-25 06:40:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 06:40:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-09-25 06:40:51,082 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23 [2020-09-25 06:40:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:51,083 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-09-25 06:40:51,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:40:51,093 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-09-25 06:40:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 06:40:51,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:40:51,094 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:40:51,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:40:51,095 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:40:51,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:40:51,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1072281632, now seen corresponding path program 2 times [2020-09-25 06:40:51,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:40:51,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782326492] [2020-09-25 06:40:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:40:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:40:51,113 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:40:51,113 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:40:51,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:40:51,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:40:51 BoogieIcfgContainer [2020-09-25 06:40:51,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:40:51,142 INFO L168 Benchmark]: Toolchain (without parser) took 2194.44 ms. Allocated memory was 147.8 MB in the beginning and 232.3 MB in the end (delta: 84.4 MB). Free memory was 102.9 MB in the beginning and 200.4 MB in the end (delta: -97.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:40:51,143 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:40:51,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.16 ms. Allocated memory is still 147.8 MB. Free memory was 102.3 MB in the beginning and 92.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:51,145 INFO L168 Benchmark]: Boogie Preprocessor took 119.75 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 92.6 MB in the beginning and 183.1 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:51,146 INFO L168 Benchmark]: RCFGBuilder took 280.55 ms. Allocated memory is still 203.9 MB. Free memory was 183.1 MB in the beginning and 171.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:51,147 INFO L168 Benchmark]: TraceAbstraction took 1433.52 ms. Allocated memory was 203.9 MB in the beginning and 232.3 MB in the end (delta: 28.3 MB). Free memory was 171.3 MB in the beginning and 200.4 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:40:51,151 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 350.16 ms. Allocated memory is still 147.8 MB. Free memory was 102.3 MB in the beginning and 92.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.75 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 92.6 MB in the beginning and 183.1 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.55 ms. Allocated memory is still 203.9 MB. Free memory was 183.1 MB in the beginning and 171.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1433.52 ms. Allocated memory was 203.9 MB in the beginning and 232.3 MB in the end (delta: 28.3 MB). Free memory was 171.3 MB in the beginning and 200.4 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] int i=0; [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L29] RET check_error(i!=3) [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L29] RET check_error(i!=3) [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L18] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 112 SDs, 0 SdLazy, 82 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...