/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=0.4 --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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:32:05,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:05,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:05,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:05,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:05,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:05,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:05,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:05,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:05,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:05,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:05,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:05,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:05,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:05,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:05,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:05,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:05,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:05,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:05,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:05,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:05,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:05,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:05,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:05,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:05,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:05,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:05,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:05,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:05,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 05:32:05,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:05,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:05,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:05,921 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 05:32:05,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:05,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:05,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:05,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:05,952 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:05,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:05,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:05,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:05,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:05,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:05,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:05,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:05,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:05,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:05,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:05,957 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:05,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:05,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:05,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:05,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:05,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:05,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:05,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:05,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:05,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:05,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:05,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:05,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:05,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:05,963 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:32:06,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:06,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:06,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:06,505 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:06,506 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:06,507 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-09-25 05:32:06,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17409f928/59725cbe294d4453b92eeb7aecc1800a/FLAG1f3bb63d5 [2020-09-25 05:32:07,137 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:07,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-09-25 05:32:07,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17409f928/59725cbe294d4453b92eeb7aecc1800a/FLAG1f3bb63d5 [2020-09-25 05:32:07,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17409f928/59725cbe294d4453b92eeb7aecc1800a [2020-09-25 05:32:07,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:07,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:07,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:07,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:07,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:07,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cc40f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07, skipping insertion in model container [2020-09-25 05:32:07,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:07,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:07,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:07,819 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:07,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:07,874 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:07,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07 WrapperNode [2020-09-25 05:32:07,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:07,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:07,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:07,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:07,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:08,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:08,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:08,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:08,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:08,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (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 05:32:08,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 05:32:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 05:32:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:08,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:08,294 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:08,294 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:32:08,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:08 BoogieIcfgContainer [2020-09-25 05:32:08,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:08,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:08,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:08,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:08,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:07" (1/3) ... [2020-09-25 05:32:08,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b40bf80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:08, skipping insertion in model container [2020-09-25 05:32:08,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (2/3) ... [2020-09-25 05:32:08,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b40bf80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:08, skipping insertion in model container [2020-09-25 05:32:08,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:08" (3/3) ... [2020-09-25 05:32:08,310 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2020-09-25 05:32:08,322 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:08,333 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:32:08,355 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:32:08,389 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:08,389 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:08,389 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:08,389 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:08,390 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:08,390 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:08,390 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:08,390 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-09-25 05:32:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 05:32:08,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:08,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:08,419 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:08,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1457192654, now seen corresponding path program 1 times [2020-09-25 05:32:08,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:08,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9329866] [2020-09-25 05:32:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:08,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:08,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:08,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:32:08,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:08,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 05:32:08,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:08,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:32:08,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:08,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:32:08,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:08,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:08,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:08,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:08,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:08,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:32:08,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:08,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:08,719 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 05:32:08,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9329866] [2020-09-25 05:32:08,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:08,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:32:08,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854947541] [2020-09-25 05:32:08,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:32:08,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:08,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:32:08,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:32:08,756 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-09-25 05:32:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:08,944 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2020-09-25 05:32:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:32:08,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 05:32:08,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:08,955 INFO L225 Difference]: With dead ends: 41 [2020-09-25 05:32:08,956 INFO L226 Difference]: Without dead ends: 21 [2020-09-25 05:32:08,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-25 05:32:09,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-09-25 05:32:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-25 05:32:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-09-25 05:32:09,005 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2020-09-25 05:32:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:09,007 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-09-25 05:32:09,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:32:09,007 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-09-25 05:32:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 05:32:09,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:09,008 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:09,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:09,009 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:09,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:09,010 INFO L82 PathProgramCache]: Analyzing trace with hash -630240860, now seen corresponding path program 1 times [2020-09-25 05:32:09,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:09,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521597092] [2020-09-25 05:32:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:09,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:09,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:32:09,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 05:32:09,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:09,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:32:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:32:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:32:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:09,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:09,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:09,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:09,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:09,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:09,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:09,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:09,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:09,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521597092] [2020-09-25 05:32:09,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:32:09,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:32:09,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891582485] [2020-09-25 05:32:09,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:09,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:09,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:09,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:09,176 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2020-09-25 05:32:09,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:09,290 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-09-25 05:32:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:32:09,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-09-25 05:32:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:09,293 INFO L225 Difference]: With dead ends: 29 [2020-09-25 05:32:09,293 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 05:32:09,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:32:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 05:32:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2020-09-25 05:32:09,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 05:32:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-09-25 05:32:09,301 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2020-09-25 05:32:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:09,302 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-09-25 05:32:09,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-09-25 05:32:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 05:32:09,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:09,313 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:09,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:09,314 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:09,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:09,315 INFO L82 PathProgramCache]: Analyzing trace with hash 656823438, now seen corresponding path program 2 times [2020-09-25 05:32:09,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:09,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416634258] [2020-09-25 05:32:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:32:09,329 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:32:09,329 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:32:09,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:09,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:32:09 BoogieIcfgContainer [2020-09-25 05:32:09,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:32:09,357 INFO L168 Benchmark]: Toolchain (without parser) took 1843.52 ms. Allocated memory was 105.4 MB in the beginning and 186.6 MB in the end (delta: 81.3 MB). Free memory was 70.8 MB in the beginning and 162.7 MB in the end (delta: -91.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:32:09,358 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 105.4 MB. Free memory was 88.1 MB in the beginning and 88.0 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.80 ms. Allocated memory was 105.4 MB in the beginning and 123.2 MB in the end (delta: 17.8 MB). Free memory was 70.2 MB in the beginning and 100.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,360 INFO L168 Benchmark]: Boogie Preprocessor took 141.96 ms. Allocated memory was 123.2 MB in the beginning and 156.8 MB in the end (delta: 33.6 MB). Free memory was 100.8 MB in the beginning and 143.4 MB in the end (delta: -42.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,361 INFO L168 Benchmark]: RCFGBuilder took 280.79 ms. Allocated memory is still 156.8 MB. Free memory was 143.4 MB in the beginning and 132.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,362 INFO L168 Benchmark]: TraceAbstraction took 1052.63 ms. Allocated memory was 156.8 MB in the beginning and 186.6 MB in the end (delta: 29.9 MB). Free memory was 132.3 MB in the beginning and 162.7 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:32:09,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 105.4 MB. Free memory was 88.1 MB in the beginning and 88.0 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 358.80 ms. Allocated memory was 105.4 MB in the beginning and 123.2 MB in the end (delta: 17.8 MB). Free memory was 70.2 MB in the beginning and 100.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.96 ms. Allocated memory was 123.2 MB in the beginning and 156.8 MB in the end (delta: 33.6 MB). Free memory was 100.8 MB in the beginning and 143.4 MB in the end (delta: -42.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.79 ms. Allocated memory is still 156.8 MB. Free memory was 143.4 MB in the beginning and 132.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1052.63 ms. Allocated memory was 156.8 MB in the beginning and 186.6 MB in the end (delta: 29.9 MB). Free memory was 132.3 MB in the beginning and 162.7 MB in the end (delta: -30.4 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: [L12] int i=0; [L13] COND TRUE i<5 [L14] i++ [L16] (i!=3) ? (0) : __blast_assert () [L13] COND TRUE i<5 [L14] i++ [L16] (i!=3) ? (0) : __blast_assert () [L13] COND TRUE i<5 [L14] i++ [L16] (i!=3) ? (0) : __blast_assert () [L16] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 13 SDslu, 72 SDs, 0 SdLazy, 50 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 807 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/5 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...