/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/css2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:38:34,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:38:34,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:38:34,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:38:34,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:38:34,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:38:34,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:38:34,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:38:34,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:38:34,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:38:34,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:38:34,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:38:34,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:38:34,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:38:34,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:38:34,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:38:34,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:38:34,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:38:34,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:38:34,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:38:34,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:38:34,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:38:34,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:38:34,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:38:34,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:38:34,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:38:34,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:38:34,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:38:34,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 06:38:34,485 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:38:34,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:38:34,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:38:34,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:38:34,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:38:34,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:38:34,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:38:34,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:38:34,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:38:34,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:38:34,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:38:34,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:38:34,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:38:34,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:38:34,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:38:34,490 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:38:34,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:38:34,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:38:34,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:38:34,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:38:34,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:38:34,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:38:34,491 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-07-18 06:38:34,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:38:34,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:38:34,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:38:34,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:38:34,816 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:38:34,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/css2003.i [2020-07-18 06:38:34,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b46c72b/d73381c4518a4fa1832d6fe3985c4c7e/FLAG7da7ec504 [2020-07-18 06:38:35,300 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:38:35,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i [2020-07-18 06:38:35,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b46c72b/d73381c4518a4fa1832d6fe3985c4c7e/FLAG7da7ec504 [2020-07-18 06:38:35,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b46c72b/d73381c4518a4fa1832d6fe3985c4c7e [2020-07-18 06:38:35,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:38:35,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:38:35,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:38:35,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:38:35,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:38:35,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367d8e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35, skipping insertion in model container [2020-07-18 06:38:35,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:38:35,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:38:35,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:38:35,890 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:38:35,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:38:35,924 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:38:35,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35 WrapperNode [2020-07-18 06:38:35,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:38:35,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:38:35,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:38:35,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:38:35,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (1/1) ... [2020-07-18 06:38:35,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:38:35,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:38:35,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:38:35,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:38:35,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (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 [2020-07-18 06:38:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:38:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:38:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 06:38:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:38:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:38:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:38:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 06:38:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 06:38:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:38:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:38:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:38:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:38:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:38:36,376 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:38:36,376 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 06:38:36,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:38:36 BoogieIcfgContainer [2020-07-18 06:38:36,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:38:36,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:38:36,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:38:36,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:38:36,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:38:35" (1/3) ... [2020-07-18 06:38:36,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681ab7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:38:36, skipping insertion in model container [2020-07-18 06:38:36,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:38:35" (2/3) ... [2020-07-18 06:38:36,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681ab7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:38:36, skipping insertion in model container [2020-07-18 06:38:36,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:38:36" (3/3) ... [2020-07-18 06:38:36,390 INFO L109 eAbstractionObserver]: Analyzing ICFG css2003.i [2020-07-18 06:38:36,402 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:38:36,409 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:38:36,425 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:38:36,447 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:38:36,447 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:38:36,447 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:38:36,448 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:38:36,448 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:38:36,448 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:38:36,448 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:38:36,450 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:38:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-18 06:38:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-18 06:38:36,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:38:36,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:38:36,480 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:38:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:38:36,485 INFO L82 PathProgramCache]: Analyzing trace with hash 318822911, now seen corresponding path program 1 times [2020-07-18 06:38:36,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:38:36,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176775191] [2020-07-18 06:38:36,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:38:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:38:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:38:36,879 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-18 06:38:36,880 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33#true} {33#true} #56#return; {33#true} is VALID [2020-07-18 06:38:36,882 INFO L263 TraceCheckUtils]: 0: Hoare triple {33#true} call ULTIMATE.init(); {33#true} is VALID [2020-07-18 06:38:36,883 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-18 06:38:36,883 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #56#return; {33#true} is VALID [2020-07-18 06:38:36,884 INFO L263 TraceCheckUtils]: 3: Hoare triple {33#true} call #t~ret1 := main(); {33#true} is VALID [2020-07-18 06:38:36,884 INFO L280 TraceCheckUtils]: 4: Hoare triple {33#true} havoc ~i~0; {33#true} is VALID [2020-07-18 06:38:36,885 INFO L280 TraceCheckUtils]: 5: Hoare triple {33#true} havoc ~j~0; {33#true} is VALID [2020-07-18 06:38:36,885 INFO L280 TraceCheckUtils]: 6: Hoare triple {33#true} havoc ~k~0; {33#true} is VALID [2020-07-18 06:38:36,887 INFO L280 TraceCheckUtils]: 7: Hoare triple {33#true} ~i~0 := 1; {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} is VALID [2020-07-18 06:38:36,888 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} ~j~0 := 1; {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} is VALID [2020-07-18 06:38:36,889 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} is VALID [2020-07-18 06:38:36,891 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} ~k~0 := #t~nondet0; {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} is VALID [2020-07-18 06:38:36,892 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} havoc #t~nondet0; {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} is VALID [2020-07-18 06:38:36,894 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#(and (<= main_~i~0 1) (<= 1 main_~i~0))} assume !!(0 <= ~k~0 && ~k~0 <= 1); {38#(and (<= (+ main_~i~0 main_~k~0) 2) (<= 1 main_~i~0) (<= 1 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-18 06:38:36,902 INFO L280 TraceCheckUtils]: 13: Hoare triple {38#(and (<= (+ main_~i~0 main_~k~0) 2) (<= 1 main_~i~0) (<= 1 (+ main_~i~0 main_~k~0)))} assume !!(~i~0 < 1000000); {38#(and (<= (+ main_~i~0 main_~k~0) 2) (<= 1 main_~i~0) (<= 1 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-18 06:38:36,903 INFO L280 TraceCheckUtils]: 14: Hoare triple {38#(and (<= (+ main_~i~0 main_~k~0) 2) (<= 1 main_~i~0) (<= 1 (+ main_~i~0 main_~k~0)))} ~i~0 := 1 + ~i~0; {39#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 3) (<= 2 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-18 06:38:36,911 INFO L280 TraceCheckUtils]: 15: Hoare triple {39#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 3) (<= 2 (+ main_~i~0 main_~k~0)))} ~j~0 := ~j~0 + ~k~0; {39#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 3) (<= 2 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-18 06:38:36,925 INFO L280 TraceCheckUtils]: 16: Hoare triple {39#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 3) (<= 2 (+ main_~i~0 main_~k~0)))} ~k~0 := ~k~0 - 1; {40#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 2) (<= 1 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-18 06:38:36,928 INFO L263 TraceCheckUtils]: 17: Hoare triple {40#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 2) (<= 1 (+ main_~i~0 main_~k~0)))} call __VERIFIER_assert((if (1 <= ~i~0 + ~k~0 && ~i~0 + ~k~0 <= 2) && ~i~0 >= 1 then 1 else 0)); {41#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-18 06:38:36,930 INFO L280 TraceCheckUtils]: 18: Hoare triple {41#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {42#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:38:36,932 INFO L280 TraceCheckUtils]: 19: Hoare triple {42#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {34#false} is VALID [2020-07-18 06:38:36,932 INFO L280 TraceCheckUtils]: 20: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-18 06:38:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:38:36,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176775191] [2020-07-18 06:38:36,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:38:36,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-18 06:38:36,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264302353] [2020-07-18 06:38:36,955 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-07-18 06:38:36,958 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:38:36,962 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-18 06:38:37,022 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:38:37,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-18 06:38:37,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:38:37,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-18 06:38:37,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-18 06:38:37,038 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 8 states. [2020-07-18 06:38:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:38:37,513 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-07-18 06:38:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-18 06:38:37,514 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-07-18 06:38:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:38:37,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-18 06:38:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 56 transitions. [2020-07-18 06:38:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-18 06:38:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 56 transitions. [2020-07-18 06:38:37,534 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 56 transitions. [2020-07-18 06:38:37,605 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:38:37,612 INFO L225 Difference]: With dead ends: 48 [2020-07-18 06:38:37,613 INFO L226 Difference]: Without dead ends: 0 [2020-07-18 06:38:37,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-18 06:38:37,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-18 06:38:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-18 06:38:37,641 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:38:37,642 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-18 06:38:37,642 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 06:38:37,642 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 06:38:37,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:38:37,643 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 06:38:37,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:38:37,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:38:37,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:38:37,644 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 06:38:37,644 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 06:38:37,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:38:37,645 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 06:38:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:38:37,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:38:37,645 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:38:37,646 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:38:37,646 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:38:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-18 06:38:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-18 06:38:37,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-07-18 06:38:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:38:37,648 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-18 06:38:37,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-18 06:38:37,649 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-18 06:38:37,649 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:38:37,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:38:37,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:38:37,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:38:37,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-18 06:38:37,951 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-18 06:38:37,951 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-18 06:38:37,951 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-18 06:38:37,952 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 06:38:37,952 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-18 06:38:37,952 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-18 06:38:37,952 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:38:37,952 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:38:37,952 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-18 06:38:37,953 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-18 06:38:37,953 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:38:37,953 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 13 26) the Hoare annotation is: (or (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) (and (<= main_~i~0 1) (<= 1 main_~i~0))) [2020-07-18 06:38:37,954 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2020-07-18 06:38:37,954 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= .cse0 2) (<= 1 main_~i~0) (<= 1 .cse0))) [2020-07-18 06:38:37,954 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 3) (<= 2 .cse0))) [2020-07-18 06:38:37,954 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-18 06:38:37,955 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 24) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2020-07-18 06:38:37,955 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-18 06:38:37,955 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-18 06:38:37,955 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-18 06:38:37,955 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 13 26) the Hoare annotation is: (or (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) (and (<= main_~i~0 1) (<= 1 main_~i~0))) [2020-07-18 06:38:37,956 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-07-18 06:38:37,956 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 3) (<= 2 .cse0))) [2020-07-18 06:38:37,956 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= .cse0 2) (<= 1 main_~i~0) (<= 1 .cse0))) [2020-07-18 06:38:37,956 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-18 06:38:37,957 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-18 06:38:37,957 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-18 06:38:37,957 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-18 06:38:37,957 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-07-18 06:38:37,958 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-18 06:38:37,958 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 06:38:37,958 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 06:38:37,958 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 06:38:37,958 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 06:38:37,959 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 06:38:37,963 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-18 06:38:37,964 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:38:37,965 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:38:37,966 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-18 06:38:37,966 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-18 06:38:37,980 INFO L163 areAnnotationChecker]: CFG has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 06:38:37,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 06:38:37 BoogieIcfgContainer [2020-07-18 06:38:37,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 06:38:37,999 INFO L168 Benchmark]: Toolchain (without parser) took 2301.66 ms. Allocated memory was 137.4 MB in the beginning and 232.3 MB in the end (delta: 94.9 MB). Free memory was 102.6 MB in the beginning and 126.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-07-18 06:38:38,000 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-18 06:38:38,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.12 ms. Allocated memory is still 137.4 MB. Free memory was 102.4 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-18 06:38:38,002 INFO L168 Benchmark]: Boogie Preprocessor took 32.83 ms. Allocated memory is still 137.4 MB. Free memory was 92.6 MB in the beginning and 91.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-07-18 06:38:38,003 INFO L168 Benchmark]: RCFGBuilder took 422.45 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 91.1 MB in the beginning and 162.5 MB in the end (delta: -71.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-18 06:38:38,005 INFO L168 Benchmark]: TraceAbstraction took 1612.42 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 162.5 MB in the beginning and 126.6 MB in the end (delta: 35.9 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2020-07-18 06:38:38,009 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.12 ms. Allocated memory is still 137.4 MB. Free memory was 102.4 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.83 ms. Allocated memory is still 137.4 MB. Free memory was 92.6 MB in the beginning and 91.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.45 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 91.1 MB in the beginning and 162.5 MB in the end (delta: -71.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1612.42 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 162.5 MB in the beginning and 126.6 MB in the end (delta: 35.9 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 19]: Loop Invariant Derived loop invariant: (i + k <= 2 && 1 <= i) && 1 <= i + k - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: ((2 <= i && i + k <= 2) && 1 <= i + k) || (i <= 1 && 1 <= i) - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 17 SDslu, 88 SDs, 0 SdLazy, 61 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 36 PreInvPairs, 52 NumberOfFragments, 211 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...