/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/css2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:29:08,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:29:08,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:29:08,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:29:08,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:29:08,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:29:08,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:29:08,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:29:08,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:29:08,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:29:08,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:29:08,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:29:08,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:29:08,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:29:08,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:29:08,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:29:08,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:29:08,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:29:08,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:29:08,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:29:08,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:29:08,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:29:08,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:29:08,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:29:08,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:29:08,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:29:08,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:29:08,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:29:08,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:29:08,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:29:08,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:29:08,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:29:08,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:29:08,934 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:29:08,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:29:08,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:29:08,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:29:08,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:29:08,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:29:08,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:29:08,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:29:08,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:29:08,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:29:08,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:29:08,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:29:08,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:29:08,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:29:08,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:29:08,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:29:08,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:29:08,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:29:08,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:29:08,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:29:08,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:29:08,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:29:08,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:29:08,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:29:08,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:29:08,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:29:09,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:29:09,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:29:09,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:29:09,234 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:29:09,235 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:29:09,237 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/css2003.i [2020-07-10 15:29:09,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/400991ec9/9e5c76f45c5745beaa9f9415b8c8b1e5/FLAGdbb085917 [2020-07-10 15:29:09,904 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:29:09,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i [2020-07-10 15:29:09,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/400991ec9/9e5c76f45c5745beaa9f9415b8c8b1e5/FLAGdbb085917 [2020-07-10 15:29:10,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/400991ec9/9e5c76f45c5745beaa9f9415b8c8b1e5 [2020-07-10 15:29:10,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:29:10,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:29:10,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:29:10,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:29:10,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:29:10,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9b0210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10, skipping insertion in model container [2020-07-10 15:29:10,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:29:10,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:29:10,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:29:10,501 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:29:10,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:29:10,541 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:29:10,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10 WrapperNode [2020-07-10 15:29:10,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:29:10,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:29:10,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:29:10,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:29:10,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (1/1) ... [2020-07-10 15:29:10,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:29:10,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:29:10,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:29:10,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:29:10,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (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 [2020-07-10 15:29:10,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:29:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:29:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:29:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:29:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:29:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:29:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:29:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:29:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:29:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:29:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:29:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:29:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:29:11,062 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:29:11,063 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:29:11,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:29:11 BoogieIcfgContainer [2020-07-10 15:29:11,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:29:11,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:29:11,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:29:11,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:29:11,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:29:10" (1/3) ... [2020-07-10 15:29:11,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392ca40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:29:11, skipping insertion in model container [2020-07-10 15:29:11,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:10" (2/3) ... [2020-07-10 15:29:11,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392ca40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:29:11, skipping insertion in model container [2020-07-10 15:29:11,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:29:11" (3/3) ... [2020-07-10 15:29:11,080 INFO L109 eAbstractionObserver]: Analyzing ICFG css2003.i [2020-07-10 15:29:11,095 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:29:11,117 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:29:11,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:29:11,210 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:29:11,211 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:29:11,211 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:29:11,211 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:29:11,211 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:29:11,211 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:29:11,212 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:29:11,212 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:29:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-10 15:29:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:29:11,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:29:11,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:29:11,252 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:29:11,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:29:11,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1610750385, now seen corresponding path program 1 times [2020-07-10 15:29:11,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:29:11,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666790652] [2020-07-10 15:29:11,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:29:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:11,702 INFO L280 TraceCheckUtils]: 0: Hoare triple {22#true} assume true; {22#true} is VALID [2020-07-10 15:29:11,703 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {22#true} {22#true} #44#return; {22#true} is VALID [2020-07-10 15:29:11,706 INFO L263 TraceCheckUtils]: 0: Hoare triple {22#true} call ULTIMATE.init(); {22#true} is VALID [2020-07-10 15:29:11,707 INFO L280 TraceCheckUtils]: 1: Hoare triple {22#true} assume true; {22#true} is VALID [2020-07-10 15:29:11,707 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} #44#return; {22#true} is VALID [2020-07-10 15:29:11,708 INFO L263 TraceCheckUtils]: 3: Hoare triple {22#true} call #t~ret1 := main(); {22#true} is VALID [2020-07-10 15:29:11,710 INFO L280 TraceCheckUtils]: 4: Hoare triple {22#true} havoc ~i~0;havoc ~j~0;havoc ~k~0;~i~0 := 1;~j~0 := 1;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~k~0 := #t~nondet0;havoc #t~nondet0; {26#(and (<= main_~i~0 1) (<= 1 main_~i~0))} is VALID [2020-07-10 15:29:11,713 INFO L280 TraceCheckUtils]: 5: Hoare triple {26#(and (<= main_~i~0 1) (<= 1 main_~i~0))} assume !!(0 <= ~k~0 && ~k~0 <= 1); {27#(and (<= (+ main_~i~0 main_~k~0) 2) (<= 1 main_~i~0) (<= 1 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-10 15:29:11,716 INFO L280 TraceCheckUtils]: 6: Hoare triple {27#(and (<= (+ main_~i~0 main_~k~0) 2) (<= 1 main_~i~0) (<= 1 (+ main_~i~0 main_~k~0)))} assume !!(~i~0 < 1000000);~i~0 := 1 + ~i~0;~j~0 := ~j~0 + ~k~0;~k~0 := ~k~0 - 1; {28#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 2) (<= 1 (+ main_~i~0 main_~k~0)))} is VALID [2020-07-10 15:29:11,720 INFO L263 TraceCheckUtils]: 7: Hoare triple {28#(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)); {29#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 15:29:11,723 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {30#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:29:11,724 INFO L280 TraceCheckUtils]: 9: Hoare triple {30#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {23#false} is VALID [2020-07-10 15:29:11,725 INFO L280 TraceCheckUtils]: 10: Hoare triple {23#false} assume !false; {23#false} is VALID [2020-07-10 15:29:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:29:11,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666790652] [2020-07-10 15:29:11,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:29:11,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 15:29:11,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112872091] [2020-07-10 15:29:11,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-07-10 15:29:11,745 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:29:11,750 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 15:29:11,783 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:29:11,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 15:29:11,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:29:11,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 15:29:11,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-10 15:29:11,800 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 7 states. [2020-07-10 15:29:12,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:12,147 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2020-07-10 15:29:12,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-10 15:29:12,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-07-10 15:29:12,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:29:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 15:29:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 41 transitions. [2020-07-10 15:29:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 15:29:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 41 transitions. [2020-07-10 15:29:12,170 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 41 transitions. [2020-07-10 15:29:12,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:29:12,281 INFO L225 Difference]: With dead ends: 33 [2020-07-10 15:29:12,281 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:29:12,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-10 15:29:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:29:12,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:29:12,338 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:29:12,338 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:29:12,339 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:29:12,339 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:29:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:12,340 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:29:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:29:12,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:12,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:29:12,341 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:29:12,342 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:29:12,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:12,342 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:29:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:29:12,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:12,343 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:29:12,343 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:29:12,344 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:29:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:29:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:29:12,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-07-10 15:29:12,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:29:12,347 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:29:12,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 15:29:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:29:12,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:12,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:29:12,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:29:12,455 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 15:29:12,455 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:29:12,456 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:29:12,456 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:29:12,456 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:29:12,456 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:29:12,456 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-10 15:29:12,457 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-10 15:29:12,457 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-10 15:29:12,457 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-10 15:29:12,457 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-07-10 15:29:12,457 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-07-10 15:29:12,458 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))) [2020-07-10 15:29:12,458 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))) [2020-07-10 15:29:12,458 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-10 15:29:12,458 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2020-07-10 15:29:12,458 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 26) no Hoare annotation was computed. [2020-07-10 15:29:12,459 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-10 15:29:12,459 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-10 15:29:12,459 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-10 15:29:12,459 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-10 15:29:12,459 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-10 15:29:12,460 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-10 15:29:12,465 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:29:12,466 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:29:12,466 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 15:29:12,466 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:29:12,466 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:29:12,466 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:29:12,467 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:29:12,467 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:29:12,467 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 15:29:12,467 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 15:29:12,467 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:29:12,467 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:29:12,468 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:29:12,468 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 15:29:12,468 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:29:12,468 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-10 15:29:12,468 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-10 15:29:12,470 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:29:12,470 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:29:12,470 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-10 15:29:12,470 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:29:12,471 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-10 15:29:12,471 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:29:12,471 INFO L163 areAnnotationChecker]: CFG has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:29:12,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:29:12 BoogieIcfgContainer [2020-07-10 15:29:12,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:29:12,490 INFO L168 Benchmark]: Toolchain (without parser) took 2224.16 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 102.8 MB in the beginning and 195.5 MB in the end (delta: -92.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:12,491 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-10 15:29:12,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 92.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:12,493 INFO L168 Benchmark]: Boogie Preprocessor took 42.01 ms. Allocated memory is still 137.9 MB. Free memory was 92.8 MB in the beginning and 91.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:12,495 INFO L168 Benchmark]: RCFGBuilder took 483.53 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.2 MB in the beginning and 166.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:12,496 INFO L168 Benchmark]: TraceAbstraction took 1416.32 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 195.5 MB in the end (delta: -30.2 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:12,500 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 0.55 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 92.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.01 ms. Allocated memory is still 137.9 MB. Free memory was 92.8 MB in the beginning and 91.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.53 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.2 MB in the beginning and 166.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1416.32 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 195.5 MB in the end (delta: -30.2 MB). Peak memory consumption was 2.3 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 14 SDslu, 48 SDs, 0 SdLazy, 25 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 11 NumberOfFragments, 33 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 480 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...