/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 --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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops-crafted-1/sum_by_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:14:11,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:14:11,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:14:11,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:14:11,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:14:11,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:14:11,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:14:11,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:14:11,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:14:11,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:14:11,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:14:11,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:14:11,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:14:11,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:14:11,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:14:11,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:14:11,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:14:11,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:14:11,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:14:11,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:14:11,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:14:11,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:14:11,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:14:11,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:14:11,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:14:11,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:14:11,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:14:11,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:14:11,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:14:11,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:14:11,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:14:11,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:14:11,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:14:11,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:14:11,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:14:11,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:14:11,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:14:11,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:14:11,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:14:11,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:14:11,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:14:11,993 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 [2020-10-28 15:14:12,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:14:12,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:14:12,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:14:12,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:14:12,051 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:14:12,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:14:12,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:14:12,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:14:12,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:14:12,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:14:12,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:14:12,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:14:12,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:14:12,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:14:12,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:14:12,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:14:12,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:14:12,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:14:12,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:14:12,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:14:12,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:14:12,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:14:12,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:14:12,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:14:12,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:14:12,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:14:12,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:14:12,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:14:12,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:14:12,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:14:12,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:14:12,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:14:12,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:14:12,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:14:12,631 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:14:12,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sum_by_3.c [2020-10-28 15:14:12,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3a6bdad9/3c94ebb6fcff4f44897132d58064f3e4/FLAGf76550285 [2020-10-28 15:14:13,324 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:14:13,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sum_by_3.c [2020-10-28 15:14:13,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3a6bdad9/3c94ebb6fcff4f44897132d58064f3e4/FLAGf76550285 [2020-10-28 15:14:13,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3a6bdad9/3c94ebb6fcff4f44897132d58064f3e4 [2020-10-28 15:14:13,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:14:13,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:14:13,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:14:13,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:14:13,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:14:13,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:13,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85a5980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13, skipping insertion in model container [2020-10-28 15:14:13,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:13,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:14:13,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:14:13,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:14:13,899 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:14:13,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:14:13,963 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:14:13,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13 WrapperNode [2020-10-28 15:14:13,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:14:13,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:14:13,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:14:13,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:14:13,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:13,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:14,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:14,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:14,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:14,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:14,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (1/1) ... [2020-10-28 15:14:14,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:14:14,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:14:14,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:14:14,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:14:14,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (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 [2020-10-28 15:14:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:14:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:14:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:14:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 15:14:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 15:14:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:14:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:14:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:14:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:14:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:14:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 15:14:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 15:14:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 15:14:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:14:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:14:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:14:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:14:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:14:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:14:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:14:14,675 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:14:14,675 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 15:14:14,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:14:14 BoogieIcfgContainer [2020-10-28 15:14:14,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:14:14,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:14:14,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:14:14,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:14:14,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:14:13" (1/3) ... [2020-10-28 15:14:14,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1839916c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:14:14, skipping insertion in model container [2020-10-28 15:14:14,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:14:13" (2/3) ... [2020-10-28 15:14:14,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1839916c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:14:14, skipping insertion in model container [2020-10-28 15:14:14,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:14:14" (3/3) ... [2020-10-28 15:14:14,691 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_by_3.c [2020-10-28 15:14:14,707 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:14:14,717 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:14:14,732 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:14:14,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:14:14,778 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:14:14,778 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:14:14,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:14:14,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:14:14,778 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:14:14,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:14:14,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:14:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-28 15:14:14,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-28 15:14:14,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:14:14,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:14:14,833 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:14:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:14:14,845 INFO L82 PathProgramCache]: Analyzing trace with hash 223266057, now seen corresponding path program 1 times [2020-10-28 15:14:14,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:14:14,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793988503] [2020-10-28 15:14:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:14:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:15,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:15,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 15:14:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-28 15:14:15,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:15,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:14:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:14:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:14:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 15:14:16,225 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-10-28 15:14:16,645 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-10-28 15:14:16,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:14:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:16,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:16,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:16,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:14:16,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:14:16,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:16,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:14:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:14:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:14:16,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:14:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:14:16,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793988503] [2020-10-28 15:14:16,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:14:16,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:14:16,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404074584] [2020-10-28 15:14:16,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:14:16,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:14:16,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:14:16,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:14:16,785 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 8 states. [2020-10-28 15:14:17,216 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-10-28 15:14:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:14:17,473 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2020-10-28 15:14:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:14:17,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-28 15:14:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:14:17,485 INFO L225 Difference]: With dead ends: 70 [2020-10-28 15:14:17,485 INFO L226 Difference]: Without dead ends: 29 [2020-10-28 15:14:17,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:14:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-28 15:14:17,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-10-28 15:14:17,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-28 15:14:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-28 15:14:17,550 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2020-10-28 15:14:17,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:14:17,550 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-28 15:14:17,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:14:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-28 15:14:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 15:14:17,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:14:17,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:14:17,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:14:17,552 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:14:17,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:14:17,553 INFO L82 PathProgramCache]: Analyzing trace with hash -599349885, now seen corresponding path program 1 times [2020-10-28 15:14:17,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:14:17,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143657979] [2020-10-28 15:14:17,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:14:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:17,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:17,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:17,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:17,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:18,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:18,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:19,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 15:14:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 15:14:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1545 [2020-10-28 15:14:19,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:19,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:14:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:14:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:14:19,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:14:19,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:14:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:19,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:19,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:14:19,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:14:19,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:19,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:14:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:14:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:14:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:14:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:14:19,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143657979] [2020-10-28 15:14:19,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:14:19,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:14:19,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855954098] [2020-10-28 15:14:19,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:14:19,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:14:19,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:14:19,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:14:19,231 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2020-10-28 15:14:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:14:19,385 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2020-10-28 15:14:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 15:14:19,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-28 15:14:19,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:14:19,386 INFO L225 Difference]: With dead ends: 32 [2020-10-28 15:14:19,386 INFO L226 Difference]: Without dead ends: 19 [2020-10-28 15:14:19,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:14:19,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-28 15:14:19,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-28 15:14:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-28 15:14:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-10-28 15:14:19,394 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 18 [2020-10-28 15:14:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:14:19,395 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-10-28 15:14:19,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:14:19,395 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-10-28 15:14:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 15:14:19,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:14:19,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:14:19,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:14:19,397 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:14:19,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:14:19,397 INFO L82 PathProgramCache]: Analyzing trace with hash -216450879, now seen corresponding path program 1 times [2020-10-28 15:14:19,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:14:19,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806696649] [2020-10-28 15:14:19,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:14:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:19,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:19,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:19,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 15:14:19,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:19,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-28 15:14:19,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:19,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:14:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:14:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:14:19,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:14:19,994 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-28 15:14:26,710 WARN L193 SmtUtils]: Spent 6.66 s on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-28 15:14:26,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:14:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:26,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:26,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:26,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:14:26,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:26,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:14:26,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:26,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:14:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:14:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:14:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:14:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:14:26,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806696649] [2020-10-28 15:14:26,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:14:26,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 15:14:26,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327533485] [2020-10-28 15:14:26,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:14:26,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:14:26,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:14:26,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:14:26,842 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 9 states. [2020-10-28 15:14:27,232 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-28 15:14:27,528 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2020-10-28 15:14:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:14:27,764 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-10-28 15:14:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:14:27,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-28 15:14:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:14:27,766 INFO L225 Difference]: With dead ends: 36 [2020-10-28 15:14:27,766 INFO L226 Difference]: Without dead ends: 30 [2020-10-28 15:14:27,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:14:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-28 15:14:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-10-28 15:14:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-28 15:14:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-10-28 15:14:27,776 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2020-10-28 15:14:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:14:27,777 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-28 15:14:27,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:14:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-10-28 15:14:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 15:14:27,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:14:27,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:14:27,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:14:27,779 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:14:27,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:14:27,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1345673013, now seen corresponding path program 1 times [2020-10-28 15:14:27,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:14:27,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875015955] [2020-10-28 15:14:27,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:14:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:27,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:27,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:28,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:29,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 15:14:29,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:14:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1313 [2020-10-28 15:14:29,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:29,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:14:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 15:14:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:14:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:14:29,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:14:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:29,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:29,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:29,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:14:29,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 15:14:29,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:29,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:14:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:14:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:14:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:14:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 15:14:29,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875015955] [2020-10-28 15:14:29,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:14:29,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:14:29,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060802376] [2020-10-28 15:14:29,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:14:29,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:14:29,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:14:29,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:14:29,345 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 6 states. [2020-10-28 15:14:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:14:29,631 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-10-28 15:14:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:14:29,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-28 15:14:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:14:29,635 INFO L225 Difference]: With dead ends: 33 [2020-10-28 15:14:29,635 INFO L226 Difference]: Without dead ends: 20 [2020-10-28 15:14:29,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:14:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-28 15:14:29,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-28 15:14:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-28 15:14:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-28 15:14:29,652 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 19 [2020-10-28 15:14:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:14:29,652 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-28 15:14:29,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:14:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-28 15:14:29,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 15:14:29,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:14:29,654 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:14:29,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:14:29,654 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:14:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:14:29,655 INFO L82 PathProgramCache]: Analyzing trace with hash -962774007, now seen corresponding path program 2 times [2020-10-28 15:14:29,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:14:29,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195824634] [2020-10-28 15:14:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:14:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:29,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:30,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:30,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 15:14:30,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:30,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-28 15:14:30,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:30,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:30,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:14:30,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:14:30,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:14:30,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:14:32,206 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (div c_~SIZE~0 4294967296))) (and (<= (+ (* 8589934593 c_main_~i~0) (* 36893488151714070528 .cse0)) (+ (* 12297829383904690176 (div (+ (* c_main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 c_~SIZE~0))) (let ((.cse1 (* 4294967296 (div c_main_~i~0 4294967296)))) (or (<= (+ c_main_~i~0 (* 4294967296 .cse0)) (+ .cse1 c_~SIZE~0)) (<= (+ .cse1 4294967297) c_main_~i~0))))) is different from false [2020-10-28 15:14:36,530 WARN L193 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-10-28 15:14:36,999 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 63 [2020-10-28 15:14:37,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:14:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:14:37,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:14:37,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:14:37,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:14:37,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:14:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:14:37,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:14:37,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:14:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:14:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:14:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:14:37,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:14:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2020-10-28 15:14:37,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195824634] [2020-10-28 15:14:37,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:14:37,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 15:14:37,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811133511] [2020-10-28 15:14:37,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:14:37,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:14:37,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:14:37,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2020-10-28 15:14:37,120 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-10-28 15:14:39,306 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (div c_~SIZE~0 4294967296))) (let ((.cse0 (* 4294967296 .cse2))) (and (= |c_#t~string5.offset| |c_old(#t~string5.offset)|) (= |c_old(#length)| |c_#length|) (= |c_#t~string6.base| |c_old(#t~string6.base)|) (= c_~SIZE~0 |c_old(~SIZE~0)|) (= |c_#t~string6.offset| |c_old(#t~string6.offset)|) (let ((.cse1 (* 4294967296 (div c_main_~i~0 4294967296)))) (or (<= (+ c_main_~i~0 .cse0) (+ .cse1 c_~SIZE~0)) (<= (+ .cse1 4294967297) c_main_~i~0))) (= |c_#t~string4.offset| |c_old(#t~string4.offset)|) (<= (+ c_main_~n~0 .cse0) (+ (* 4294967296 (div c_main_~n~0 4294967296)) c_~SIZE~0)) (= |c_old(#valid)| |c_#valid|) (= |c_#t~string5.base| |c_old(#t~string5.base)|) (<= (+ (* 8589934593 c_main_~i~0) (* 36893488151714070528 .cse2)) (+ (* 12297829383904690176 (div (+ (* c_main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 c_~SIZE~0))) (= |c_#t~string4.base| |c_old(#t~string4.base)|) (= |c_#NULL.base| |c_old(#NULL.base)|) (= |c_#NULL.offset| |c_old(#NULL.offset)|)))) is different from false [2020-10-28 15:14:41,385 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (div c_~SIZE~0 4294967296))) (let ((.cse1 (* 4294967296 .cse0))) (and (<= (+ (* 8589934593 c_main_~i~0) (* 36893488151714070528 .cse0)) (+ (* 12297829383904690176 (div (+ (* c_main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 c_~SIZE~0))) (let ((.cse2 (* 4294967296 (div c_main_~i~0 4294967296)))) (or (<= (+ c_main_~i~0 .cse1) (+ .cse2 c_~SIZE~0)) (<= (+ .cse2 4294967297) c_main_~i~0))) (<= (+ c_main_~n~0 .cse1) (+ (* 4294967296 (div c_main_~n~0 4294967296)) c_~SIZE~0))))) is different from false [2020-10-28 15:14:45,677 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 15:14:50,724 WARN L193 SmtUtils]: Spent 4.99 s on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 15:14:52,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:14:52,905 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-28 15:14:52,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:14:52,905 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-28 15:14:52,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:14:52,906 INFO L225 Difference]: With dead ends: 20 [2020-10-28 15:14:52,906 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 15:14:52,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=43, Invalid=121, Unknown=4, NotChecked=72, Total=240 [2020-10-28 15:14:52,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 15:14:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 15:14:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 15:14:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 15:14:52,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-28 15:14:52,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:14:52,908 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 15:14:52,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:14:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 15:14:52,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 15:14:52,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 15:14:52,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 15:14:53,025 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-28 15:15:01,182 WARN L193 SmtUtils]: Spent 8.03 s on a formula simplification. DAG size of input: 153 DAG size of output: 110 [2020-10-28 15:15:17,996 WARN L193 SmtUtils]: Spent 16.77 s on a formula simplification. DAG size of input: 95 DAG size of output: 55 [2020-10-28 15:15:30,564 WARN L193 SmtUtils]: Spent 12.55 s on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-10-28 15:16:27,088 WARN L193 SmtUtils]: Spent 56.52 s on a formula simplification. DAG size of input: 138 DAG size of output: 109 [2020-10-28 15:16:27,092 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 15:16:27,093 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 15:16:27,093 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 15:16:27,093 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 15:16:27,094 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:16:27,094 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~SIZE~0 |old(~SIZE~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 15:16:27,094 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:16:27,094 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:16:27,094 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 15:16:27,094 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 15:16:27,095 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:16:27,095 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2020-10-28 15:16:27,095 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-28 15:16:27,095 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2020-10-28 15:16:27,095 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2020-10-28 15:16:27,096 INFO L270 CegarLoopResult]: At program point L29-2(lines 29 31) the Hoare annotation is: (let ((.cse2 (div main_~i~0 4294967296))) (let ((.cse0 (* .cse2 4294967296)) (.cse1 (* 4294967296 (div main_~n~0 4294967296)))) (or (and (= main_~k~0 main_~j~0) (<= main_~i~0 0) (= main_~i~0 (+ main_~k~0 .cse0)) (<= main_~n~0 .cse1) (< 0 (+ .cse2 1))) (let ((.cse8 (* 4294967296 .cse2))) (let ((.cse3 (< (+ .cse8 2147483647) main_~i~0)) (.cse4 (div ~SIZE~0 4294967296))) (and (or (and (<= main_~n~0 (+ .cse1 main_~j~0)) (<= main_~j~0 2147483647)) (and (<= main_~n~0 (+ .cse1 main_~j~0 4294967296)) (<= (+ main_~j~0 1) 0))) (or (and .cse3 (= main_~i~0 (+ main_~j~0 .cse0 4294967296))) (= (+ main_~j~0 .cse0) main_~i~0)) (<= (+ (* 8589934593 main_~i~0) (* 36893488151714070528 .cse4)) (+ (* 12297829383904690176 (div (+ (* main_~i~0 3) (- 8589934595)) 4294967296)) (* 8589934593 ~SIZE~0) 24595658767809380352)) (or (and (<= main_~n~0 (+ .cse1 main_~k~0 4294967296)) (<= (+ main_~k~0 1) 0)) (and (<= (div main_~k~0 4294967296) 0) (<= main_~n~0 (+ .cse1 main_~k~0)))) (let ((.cse17 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296))) (let ((.cse16 (div (+ main_~i~0 main_~j~0 main_~k~0 (* .cse17 (- 4294967296))) 3))) (let ((.cse15 (div .cse16 4294967296))) (let ((.cse10 (+ (* 4294967297 main_~i~0) (* 1431655765 main_~j~0) (* 2863311531 main_~k~0) (* 4294967296 .cse4))) (.cse11 (* 4294967296 .cse15)) (.cse12 (* 6148914694099828736 .cse2)) (.cse13 (* 8589934592 .cse16)) (.cse14 (* 12297829383904690176 .cse17)) (.cse5 (* 2 .cse16)) (.cse6 (* 8589934592 .cse4)) (.cse7 (* 8589934592 .cse15)) (.cse9 (* 2 ~SIZE~0))) (or (<= (+ main_~i~0 .cse5 .cse6 1) (+ main_~j~0 .cse7 .cse8 .cse9)) (and (<= .cse10 (+ .cse11 .cse12 .cse13 .cse14 ~SIZE~0 6148914694099828736)) .cse3) (<= .cse10 (+ .cse11 .cse12 .cse13 .cse14 ~SIZE~0)) (and (<= (+ main_~i~0 .cse5 .cse6) (+ main_~j~0 .cse7 .cse8 .cse9 4294967295)) .cse3)))))))))))) [2020-10-28 15:16:27,097 INFO L270 CegarLoopResult]: At program point L29-3(lines 29 31) the Hoare annotation is: (let ((.cse20 (div main_~i~0 4294967296))) (let ((.cse6 (* .cse20 4294967296))) (let ((.cse0 (= main_~i~0 (+ main_~k~0 .cse6))) (.cse3 (< 0 (+ .cse20 1))) (.cse1 (= (+ main_~j~0 .cse6) main_~i~0)) (.cse2 (div ~SIZE~0 4294967296))) (or (and .cse0 .cse1 (<= (+ (* 4294967296 (div (+ (* main_~i~0 (- 3)) 4294967298) 4294967296)) (* 3 main_~i~0) (* 12884901888 .cse2)) (* 3 ~SIZE~0)) (<= main_~i~0 1) .cse3) (and (= main_~k~0 main_~j~0) (<= main_~i~0 0) .cse0 .cse3) (let ((.cse10 (* 4294967296 .cse20))) (let ((.cse4 (* 4294967296 (div main_~n~0 4294967296))) (.cse5 (< (+ .cse10 2147483647) main_~i~0))) (and (or (and (<= main_~n~0 (+ .cse4 main_~j~0)) (<= main_~j~0 2147483647)) (and (<= main_~n~0 (+ .cse4 main_~j~0 4294967296)) (<= (+ main_~j~0 1) 0))) (or (and .cse5 (= main_~i~0 (+ main_~j~0 .cse6 4294967296))) .cse1) (or (and (<= main_~n~0 (+ .cse4 main_~k~0 4294967296)) (<= (+ main_~k~0 1) 0)) (and (<= (div main_~k~0 4294967296) 0) (<= main_~n~0 (+ .cse4 main_~k~0)))) (let ((.cse19 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296))) (let ((.cse18 (div (+ main_~i~0 main_~j~0 main_~k~0 (* .cse19 (- 4294967296))) 3))) (let ((.cse17 (div .cse18 4294967296))) (let ((.cse12 (+ (* 4294967297 main_~i~0) (* 1431655765 main_~j~0) (* 2863311531 main_~k~0) (* 4294967296 .cse2))) (.cse13 (* 4294967296 .cse17)) (.cse14 (* 6148914694099828736 .cse20)) (.cse15 (* 8589934592 .cse18)) (.cse16 (* 12297829383904690176 .cse19)) (.cse7 (* 2 .cse18)) (.cse8 (* 8589934592 .cse2)) (.cse9 (* 8589934592 .cse17)) (.cse11 (* 2 ~SIZE~0))) (or (<= (+ main_~i~0 .cse7 .cse8 1) (+ main_~j~0 .cse9 .cse10 .cse11)) (and (<= .cse12 (+ .cse13 .cse14 .cse15 .cse16 ~SIZE~0 6148914694099828736)) .cse5) (<= .cse12 (+ .cse13 .cse14 .cse15 .cse16 ~SIZE~0)) (and (<= (+ main_~i~0 .cse7 .cse8) (+ main_~j~0 .cse9 .cse10 .cse11 4294967295)) .cse5))))))))))))) [2020-10-28 15:16:27,097 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 34) no Hoare annotation was computed. [2020-10-28 15:16:27,097 INFO L270 CegarLoopResult]: At program point L25-2(lines 25 27) the Hoare annotation is: (let ((.cse2 (div main_~i~0 4294967296))) (let ((.cse3 (* .cse2 4294967296))) (let ((.cse1 (* 4294967296 (div main_~n~0 4294967296))) (.cse0 (= (+ main_~j~0 .cse3) main_~i~0))) (or (and (<= main_~i~0 0) .cse0 (<= main_~n~0 .cse1) (< 0 (+ .cse2 1))) (and (or (and (<= main_~n~0 (+ .cse1 main_~j~0)) (<= main_~j~0 2147483647)) (and (<= main_~n~0 (+ .cse1 main_~j~0 4294967296)) (<= (+ main_~j~0 1) 0))) (or (and (< (+ (* 4294967296 .cse2) 2147483647) main_~i~0) (= main_~i~0 (+ main_~j~0 .cse3 4294967296))) .cse0) (<= (+ (* 8589934593 main_~i~0) (* 36893488151714070528 (div ~SIZE~0 4294967296))) (+ (* 12297829383904690176 (div (+ (* main_~i~0 3) (- 8589934595)) 4294967296)) (* 8589934593 ~SIZE~0) 24595658767809380352))))))) [2020-10-28 15:16:27,097 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 27) no Hoare annotation was computed. [2020-10-28 15:16:27,097 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-28 15:16:27,098 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: (let ((.cse2 (div ~SIZE~0 4294967296))) (let ((.cse0 (* 4294967296 .cse2))) (let ((.cse3 (<= (+ main_~n~0 .cse0) (+ (* 4294967296 (div main_~n~0 4294967296)) ~SIZE~0))) (.cse1 (div main_~i~0 4294967296))) (or (and (<= (+ main_~i~0 .cse0) (+ (* 4294967296 .cse1) ~SIZE~0)) (<= (+ (* 8589934593 main_~i~0) (* 36893488151714070528 .cse2)) (+ (* 12297829383904690176 (div (+ (* main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 ~SIZE~0))) .cse3) (and (<= main_~i~0 0) .cse3 (< 0 (+ .cse1 1))))))) [2020-10-28 15:16:27,098 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2020-10-28 15:16:27,098 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 34) no Hoare annotation was computed. [2020-10-28 15:16:27,098 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-28 15:16:27,098 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 16 34) the Hoare annotation is: true [2020-10-28 15:16:27,098 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2020-10-28 15:16:27,098 INFO L270 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-28 15:16:27,099 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 13) no Hoare annotation was computed. [2020-10-28 15:16:27,099 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-10-28 15:16:27,099 INFO L274 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-10-28 15:16:27,099 INFO L274 CegarLoopResult]: For program point L9-2(lines 8 13) no Hoare annotation was computed. [2020-10-28 15:16:27,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 03:16:27 BoogieIcfgContainer [2020-10-28 15:16:27,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 15:16:27,160 INFO L168 Benchmark]: Toolchain (without parser) took 133481.93 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 125.7 MB in the beginning and 130.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 144.8 MB. Max. memory is 8.0 GB. [2020-10-28 15:16:27,161 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 15:16:27,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.00 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 115.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 15:16:27,166 INFO L168 Benchmark]: Boogie Preprocessor took 72.60 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 15:16:27,167 INFO L168 Benchmark]: RCFGBuilder took 633.87 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 99.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-28 15:16:27,169 INFO L168 Benchmark]: TraceAbstraction took 132475.79 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 99.3 MB in the beginning and 130.5 MB in the end (delta: -31.2 MB). Peak memory consumption was 118.6 MB. Max. memory is 8.0 GB. [2020-10-28 15:16:27,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 284.00 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 115.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.60 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 633.87 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 99.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 132475.79 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 99.3 MB in the beginning and 130.5 MB in the end (delta: -31.2 MB). Peak memory consumption was 118.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((k == j && i <= 0) && i == k + i / 4294967296 * 4294967296) && n <= 4294967296 * (n / 4294967296)) && 0 < i / 4294967296 + 1) || ((((((n <= 4294967296 * (n / 4294967296) + j && j <= 2147483647) || (n <= 4294967296 * (n / 4294967296) + j + 4294967296 && j + 1 <= 0)) && ((4294967296 * (i / 4294967296) + 2147483647 < i && i == j + i / 4294967296 * 4294967296 + 4294967296) || j + i / 4294967296 * 4294967296 == i)) && 8589934593 * i + 36893488151714070528 * (SIZE / 4294967296) <= 12297829383904690176 * ((i * 3 + -8589934595) / 4294967296) + 8589934593 * SIZE + 24595658767809380352) && ((n <= 4294967296 * (n / 4294967296) + k + 4294967296 && k + 1 <= 0) || (k / 4294967296 <= 0 && n <= 4294967296 * (n / 4294967296) + k))) && (((i + 2 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 8589934592 * (SIZE / 4294967296) + 1 <= j + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 4294967296 * (i / 4294967296) + 2 * SIZE || (4294967297 * i + 1431655765 * j + 2863311531 * k + 4294967296 * (SIZE / 4294967296) <= 4294967296 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 6148914694099828736 * (i / 4294967296) + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 12297829383904690176 * ((i + j + k) / 4294967296) + SIZE + 6148914694099828736 && 4294967296 * (i / 4294967296) + 2147483647 < i)) || 4294967297 * i + 1431655765 * j + 2863311531 * k + 4294967296 * (SIZE / 4294967296) <= 4294967296 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 6148914694099828736 * (i / 4294967296) + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 12297829383904690176 * ((i + j + k) / 4294967296) + SIZE) || (i + 2 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 8589934592 * (SIZE / 4294967296) <= j + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 4294967296 * (i / 4294967296) + 2 * SIZE + 4294967295 && 4294967296 * (i / 4294967296) + 2147483647 < i))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((i <= 0 && j + i / 4294967296 * 4294967296 == i) && n <= 4294967296 * (n / 4294967296)) && 0 < i / 4294967296 + 1) || ((((n <= 4294967296 * (n / 4294967296) + j && j <= 2147483647) || (n <= 4294967296 * (n / 4294967296) + j + 4294967296 && j + 1 <= 0)) && ((4294967296 * (i / 4294967296) + 2147483647 < i && i == j + i / 4294967296 * 4294967296 + 4294967296) || j + i / 4294967296 * 4294967296 == i)) && 8589934593 * i + 36893488151714070528 * (SIZE / 4294967296) <= 12297829383904690176 * ((i * 3 + -8589934595) / 4294967296) + 8589934593 * SIZE + 24595658767809380352) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((i + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (i / 4294967296) + SIZE && 8589934593 * i + 36893488151714070528 * (SIZE / 4294967296) <= 12297829383904690176 * ((i * 3 + -3) / 4294967296) + 8589934593 * SIZE) && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) || ((i <= 0 && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) && 0 < i / 4294967296 + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.1s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 94.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 153 SDslu, 124 SDs, 0 SdLazy, 335 SolverSat, 46 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 29.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 25 PreInvPairs, 36 NumberOfFragments, 1069 HoareAnnotationTreeSize, 25 FomulaSimplifications, 1727 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 972 FormulaSimplificationTreeSizeReductionInter, 93.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 39945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 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 correct! Received shutdown request...