/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:36:48,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:36:48,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:36:48,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 11:36:48,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 11:36:48,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 11:36:48,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 11:36:48,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 11:36:48,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 11:36:48,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 11:36:48,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 11:36:48,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 11:36:48,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:36:48,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:36:48,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:36:48,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:36:48,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:36:48,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:36:48,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:36:48,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:36:48,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:36:48,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:36:48,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:36:48,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:36:48,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-06 11:36:48,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-06 11:36:48,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-06 11:36:48,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-06 11:36:48,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-06 11:36:48,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-06 11:36:48,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-06 11:36:48,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-06 11:36:48,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-06 11:36:48,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-06 11:36:48,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-06 11:36:48,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-06 11:36:48,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-06 11:36:48,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-06 11:36:48,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:36:48,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:36:48,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:36:48,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:36:48,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:36:48,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:36:48,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:36:48,864 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:36:48,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:36:48,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:36:48,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:36:48,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:36:48,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:36:48,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:36:48,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:36:48,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:36:48,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:36:48,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:36:48,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:36:48,867 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:36:48,867 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:36:49,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:36:49,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:36:49,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:36:49,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:36:49,127 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:36:49,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1.i [2021-05-06 11:36:49,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a9320d8/79f13b379fac421c9ff2312b4ba468a1/FLAG640208ee5 [2021-05-06 11:36:49,586 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:36:49,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1.i [2021-05-06 11:36:49,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a9320d8/79f13b379fac421c9ff2312b4ba468a1/FLAG640208ee5 [2021-05-06 11:36:50,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a9320d8/79f13b379fac421c9ff2312b4ba468a1 [2021-05-06 11:36:50,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:36:50,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:36:50,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:36:50,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:36:50,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:36:50,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff5b1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50, skipping insertion in model container [2021-05-06 11:36:50,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:36:50,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:36:50,134 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1.i[891,904] [2021-05-06 11:36:50,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:36:50,152 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:36:50,176 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1.i[891,904] [2021-05-06 11:36:50,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:36:50,197 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:36:50,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50 WrapperNode [2021-05-06 11:36:50,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:36:50,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:36:50,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:36:50,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:36:50,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... [2021-05-06 11:36:50,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:36:50,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:36:50,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:36:50,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:36:50,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:36:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:36:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:36:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:36:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 11:36:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 11:36:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:36:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:36:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:36:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 11:36:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 11:36:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:36:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:36:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 11:36:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:36:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 11:36:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:36:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:36:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:36:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:36:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:36:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:36:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:36:50,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:36:50,514 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 11:36:50,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:36:50 BoogieIcfgContainer [2021-05-06 11:36:50,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:36:50,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:36:50,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:36:50,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:36:50,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:36:50" (1/3) ... [2021-05-06 11:36:50,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d006bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:36:50, skipping insertion in model container [2021-05-06 11:36:50,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:50" (2/3) ... [2021-05-06 11:36:50,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d006bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:36:50, skipping insertion in model container [2021-05-06 11:36:50,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:36:50" (3/3) ... [2021-05-06 11:36:50,520 INFO L111 eAbstractionObserver]: Analyzing ICFG count_by_1.i [2021-05-06 11:36:50,523 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:36:50,542 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:36:50,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:36:50,580 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:36:50,581 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:36:50,581 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:36:50,581 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:36:50,581 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:36:50,581 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:36:50,581 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:36:50,581 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:36:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 11:36:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-06 11:36:50,595 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:50,595 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:50,595 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:50,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:50,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1305738320, now seen corresponding path program 1 times [2021-05-06 11:36:50,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:50,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521787955] [2021-05-06 11:36:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:50,652 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:36:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:50,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:50,846 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:50,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521787955] [2021-05-06 11:36:50,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [521787955] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:50,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:50,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 11:36:50,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643980672] [2021-05-06 11:36:50,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 11:36:50,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:50,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 11:36:50,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:36:50,861 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:50,981 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2021-05-06 11:36:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 11:36:50,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-06 11:36:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:50,987 INFO L225 Difference]: With dead ends: 34 [2021-05-06 11:36:50,987 INFO L226 Difference]: Without dead ends: 15 [2021-05-06 11:36:50,991 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:36:51,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-06 11:36:51,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-05-06 11:36:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-06 11:36:51,016 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-05-06 11:36:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:51,016 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-06 11:36:51,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-06 11:36:51,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 11:36:51,017 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:51,017 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:51,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:36:51,018 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:51,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:51,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1786070446, now seen corresponding path program 1 times [2021-05-06 11:36:51,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:51,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660413928] [2021-05-06 11:36:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:51,060 WARN L240 tifierPushTermWalker]: treesize reduction 3, result has 93.3 percent of original size [2021-05-06 11:36:51,089 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:51,109 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-06 11:36:51,134 WARN L245 tifierPushTermWalker]: treesize reduction 3, result has 93.3 percent of original size 42 [2021-05-06 11:36:51,149 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:51,170 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:36:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:51,347 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:51,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660413928] [2021-05-06 11:36:51,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1660413928] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:51,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:51,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-06 11:36:51,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170565404] [2021-05-06 11:36:51,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-06 11:36:51,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:51,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-06 11:36:51,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-05-06 11:36:51,349 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:51,508 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-05-06 11:36:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 11:36:51,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-05-06 11:36:51,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:51,509 INFO L225 Difference]: With dead ends: 15 [2021-05-06 11:36:51,509 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 11:36:51,510 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 207.3ms TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-05-06 11:36:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 11:36:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 11:36:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-06 11:36:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 11:36:51,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-05-06 11:36:51,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:51,510 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 11:36:51,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 11:36:51,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 11:36:51,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:36:51,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 11:36:51,734 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-06 11:36:51,735 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-06 11:36:51,737 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-06 11:36:51,737 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:36:51,738 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-05-06 11:36:51,738 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:36:51,738 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L198 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-05-06 11:36:51,743 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-05-06 11:36:51,743 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2021-05-06 11:36:51,743 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-05-06 11:36:51,743 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 24 29) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L201 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 24 29) the Hoare annotation is: true [2021-05-06 11:36:51,743 INFO L194 CegarLoopUtils]: At program point L26-2(line 26) the Hoare annotation is: (and (< main_~i~0 1000000) (or (= main_~i~0 0) (< 0 main_~i~0))) [2021-05-06 11:36:51,744 INFO L194 CegarLoopUtils]: At program point L26-3(line 26) the Hoare annotation is: (or (= main_~i~0 0) (and (< main_~i~0 1000001) (or (< 1 main_~i~0) (= main_~i~0 1)))) [2021-05-06 11:36:51,744 INFO L194 CegarLoopUtils]: At program point L26-4(line 26) the Hoare annotation is: (= main_~i~0 1000000) [2021-05-06 11:36:51,744 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 24 29) the Hoare annotation is: true [2021-05-06 11:36:51,744 INFO L201 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-05-06 11:36:51,744 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-05-06 11:36:51,744 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2021-05-06 11:36:51,744 INFO L194 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:36:51,744 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:36:51,744 INFO L194 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:36:51,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:36:51 BoogieIcfgContainer [2021-05-06 11:36:51,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:36:51,765 INFO L168 Benchmark]: Toolchain (without parser) took 1753.08 ms. Allocated memory is still 191.9 MB. Free memory was 156.6 MB in the beginning and 131.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:51,766 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 191.9 MB. Free memory is still 173.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:36:51,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.04 ms. Allocated memory is still 191.9 MB. Free memory was 156.4 MB in the beginning and 175.0 MB in the end (delta: -18.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:51,769 INFO L168 Benchmark]: Boogie Preprocessor took 22.62 ms. Allocated memory is still 191.9 MB. Free memory was 175.0 MB in the beginning and 173.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:51,770 INFO L168 Benchmark]: RCFGBuilder took 292.36 ms. Allocated memory is still 191.9 MB. Free memory was 173.4 MB in the beginning and 159.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:51,770 INFO L168 Benchmark]: TraceAbstraction took 1247.62 ms. Allocated memory is still 191.9 MB. Free memory was 159.2 MB in the beginning and 131.8 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:51,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 191.9 MB. Free memory is still 173.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 185.04 ms. Allocated memory is still 191.9 MB. Free memory was 156.4 MB in the beginning and 175.0 MB in the end (delta: -18.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.62 ms. Allocated memory is still 191.9 MB. Free memory was 175.0 MB in the beginning and 173.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 292.36 ms. Allocated memory is still 191.9 MB. Free memory was 173.4 MB in the beginning and 159.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1247.62 ms. Allocated memory is still 191.9 MB. Free memory was 159.2 MB in the beginning and 131.8 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 932.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.9ms, AutomataDifference: 299.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 222.9ms, InitialAbstractionConstructionTime: 6.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 22 SDtfs, 24 SDslu, 31 SDs, 0 SdLazy, 54 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 294.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 20 LocationsWithAnnotation, 26 PreInvPairs, 36 NumberOfFragments, 81 HoareAnnotationTreeSize, 26 FomulaSimplifications, 115 FormulaSimplificationTreeSizeReduction, 67.8ms HoareSimplificationTime, 20 FomulaSimplificationsInter, 350 FormulaSimplificationTreeSizeReductionInter, 146.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: i == 0 || (i < 1000001 && (1 < i || i == 1)) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! Received shutdown request...