/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 20:24:14,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 20:24:14,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 20:24:14,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 20:24:14,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 20:24:14,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 20:24:14,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 20:24:14,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 20:24:14,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 20:24:14,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 20:24:14,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 20:24:14,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 20:24:14,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 20:24:14,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 20:24:14,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 20:24:14,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 20:24:14,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 20:24:14,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 20:24:14,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 20:24:14,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 20:24:14,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 20:24:14,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 20:24:14,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 20:24:14,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 20:24:14,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 20:24:14,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 20:24:14,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 20:24:14,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 20:24:14,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 20:24:14,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 20:24:14,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 20:24:14,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 20:24:14,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 20:24:14,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 20:24:14,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 20:24:14,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 20:24:14,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 20:24:14,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 20:24:14,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 20:24:14,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 20:24:14,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 20:24:14,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 20:24:14,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 20:24:14,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 20:24:14,959 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 20:24:14,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 20:24:14,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 20:24:14,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 20:24:14,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 20:24:14,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 20:24:14,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 20:24:14,966 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 20:24:15,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 20:24:15,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 20:24:15,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 20:24:15,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 20:24:15,286 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 20:24:15,287 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-07-10 20:24:15,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a64b4b71/518d7fad9ab944d6bd4c172b6267930d/FLAG927f507f4 [2020-07-10 20:24:15,833 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 20:24:15,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-07-10 20:24:15,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a64b4b71/518d7fad9ab944d6bd4c172b6267930d/FLAG927f507f4 [2020-07-10 20:24:16,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a64b4b71/518d7fad9ab944d6bd4c172b6267930d [2020-07-10 20:24:16,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 20:24:16,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 20:24:16,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 20:24:16,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 20:24:16,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 20:24:16,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8448c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16, skipping insertion in model container [2020-07-10 20:24:16,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 20:24:16,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 20:24:16,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:24:16,458 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 20:24:16,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:24:16,489 INFO L208 MainTranslator]: Completed translation [2020-07-10 20:24:16,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16 WrapperNode [2020-07-10 20:24:16,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 20:24:16,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 20:24:16,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 20:24:16,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 20:24:16,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (1/1) ... [2020-07-10 20:24:16,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 20:24:16,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 20:24:16,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 20:24:16,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 20:24:16,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (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 20:24:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 20:24:16,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 20:24:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 20:24:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 20:24:16,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 20:24:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 20:24:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 20:24:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 20:24:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 20:24:16,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 20:24:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 20:24:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 20:24:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 20:24:16,985 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 20:24:16,985 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-10 20:24:16,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:24:16 BoogieIcfgContainer [2020-07-10 20:24:16,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 20:24:16,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 20:24:16,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 20:24:16,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 20:24:16,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:24:16" (1/3) ... [2020-07-10 20:24:16,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761c9eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:24:16, skipping insertion in model container [2020-07-10 20:24:16,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:16" (2/3) ... [2020-07-10 20:24:16,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761c9eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:24:16, skipping insertion in model container [2020-07-10 20:24:16,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:24:16" (3/3) ... [2020-07-10 20:24:17,000 INFO L109 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2020-07-10 20:24:17,013 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 20:24:17,022 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 20:24:17,037 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 20:24:17,063 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 20:24:17,064 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 20:24:17,064 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 20:24:17,064 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 20:24:17,064 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 20:24:17,064 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 20:24:17,065 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 20:24:17,065 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 20:24:17,082 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-07-10 20:24:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 20:24:17,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:24:17,102 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, 1, 1, 1, 1] [2020-07-10 20:24:17,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:24:17,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:24:17,110 INFO L82 PathProgramCache]: Analyzing trace with hash 781844856, now seen corresponding path program 1 times [2020-07-10 20:24:17,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:24:17,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541297439] [2020-07-10 20:24:17,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:24:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:17,398 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-10 20:24:17,399 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {49#true} {49#true} #93#return; {49#true} is VALID [2020-07-10 20:24:17,401 INFO L263 TraceCheckUtils]: 0: Hoare triple {49#true} call ULTIMATE.init(); {49#true} is VALID [2020-07-10 20:24:17,402 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-10 20:24:17,403 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {49#true} {49#true} #93#return; {49#true} is VALID [2020-07-10 20:24:17,403 INFO L263 TraceCheckUtils]: 3: Hoare triple {49#true} call #t~ret5 := main(); {49#true} is VALID [2020-07-10 20:24:17,403 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#true} havoc ~i~0; {49#true} is VALID [2020-07-10 20:24:17,404 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#true} havoc ~k~0; {49#true} is VALID [2020-07-10 20:24:17,404 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#true} havoc ~n~0; {49#true} is VALID [2020-07-10 20:24:17,405 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#true} havoc ~l~0; {49#true} is VALID [2020-07-10 20:24:17,405 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {49#true} is VALID [2020-07-10 20:24:17,406 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#true} ~n~0 := #t~nondet0; {49#true} is VALID [2020-07-10 20:24:17,406 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#true} havoc #t~nondet0; {49#true} is VALID [2020-07-10 20:24:17,407 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {49#true} is VALID [2020-07-10 20:24:17,407 INFO L280 TraceCheckUtils]: 12: Hoare triple {49#true} ~l~0 := #t~nondet1; {49#true} is VALID [2020-07-10 20:24:17,408 INFO L280 TraceCheckUtils]: 13: Hoare triple {49#true} havoc #t~nondet1; {49#true} is VALID [2020-07-10 20:24:17,409 INFO L280 TraceCheckUtils]: 14: Hoare triple {49#true} assume !!(~l~0 > 0); {53#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:17,411 INFO L280 TraceCheckUtils]: 15: Hoare triple {53#(<= 1 main_~l~0)} assume !!(~l~0 < 1000000); {53#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:17,412 INFO L280 TraceCheckUtils]: 16: Hoare triple {53#(<= 1 main_~l~0)} assume !!(~n~0 < 1000000); {53#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:17,414 INFO L280 TraceCheckUtils]: 17: Hoare triple {53#(<= 1 main_~l~0)} ~k~0 := 1; {53#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:17,415 INFO L280 TraceCheckUtils]: 18: Hoare triple {53#(<= 1 main_~l~0)} assume !!(~k~0 < ~n~0); {53#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:17,416 INFO L280 TraceCheckUtils]: 19: Hoare triple {53#(<= 1 main_~l~0)} ~i~0 := ~l~0; {54#(<= 1 main_~i~0)} is VALID [2020-07-10 20:24:17,417 INFO L280 TraceCheckUtils]: 20: Hoare triple {54#(<= 1 main_~i~0)} assume !!(~i~0 < ~n~0); {54#(<= 1 main_~i~0)} is VALID [2020-07-10 20:24:17,420 INFO L263 TraceCheckUtils]: 21: Hoare triple {54#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 <= ~i~0 then 1 else 0)); {55#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 20:24:17,421 INFO L280 TraceCheckUtils]: 22: Hoare triple {55#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {56#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:24:17,422 INFO L280 TraceCheckUtils]: 23: Hoare triple {56#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {50#false} is VALID [2020-07-10 20:24:17,423 INFO L280 TraceCheckUtils]: 24: Hoare triple {50#false} assume !false; {50#false} is VALID [2020-07-10 20:24:17,427 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 20:24:17,427 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:17,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541297439] [2020-07-10 20:24:17,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:24:17,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 20:24:17,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844382165] [2020-07-10 20:24:17,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-07-10 20:24:17,443 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:24:17,447 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 20:24:17,493 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:17,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 20:24:17,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:24:17,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 20:24:17,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 20:24:17,508 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2020-07-10 20:24:18,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:18,034 INFO L93 Difference]: Finished difference Result 93 states and 114 transitions. [2020-07-10 20:24:18,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-10 20:24:18,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-07-10 20:24:18,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:24:18,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 20:24:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2020-07-10 20:24:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 20:24:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2020-07-10 20:24:18,056 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 114 transitions. [2020-07-10 20:24:18,205 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:18,220 INFO L225 Difference]: With dead ends: 93 [2020-07-10 20:24:18,220 INFO L226 Difference]: Without dead ends: 57 [2020-07-10 20:24:18,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-10 20:24:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-10 20:24:18,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2020-07-10 20:24:18,309 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:24:18,310 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 45 states. [2020-07-10 20:24:18,310 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 45 states. [2020-07-10 20:24:18,311 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 45 states. [2020-07-10 20:24:18,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:18,318 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2020-07-10 20:24:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2020-07-10 20:24:18,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:18,319 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:18,319 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 57 states. [2020-07-10 20:24:18,320 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 57 states. [2020-07-10 20:24:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:18,325 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2020-07-10 20:24:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2020-07-10 20:24:18,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:18,327 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:18,327 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:24:18,327 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:24:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-10 20:24:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2020-07-10 20:24:18,332 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 25 [2020-07-10 20:24:18,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:24:18,333 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2020-07-10 20:24:18,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 20:24:18,333 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 48 transitions. [2020-07-10 20:24:18,405 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:18,405 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2020-07-10 20:24:18,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-10 20:24:18,407 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:24:18,407 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:24:18,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 20:24:18,409 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:24:18,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:24:18,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1778608888, now seen corresponding path program 1 times [2020-07-10 20:24:18,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:24:18,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774818935] [2020-07-10 20:24:18,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:24:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:18,620 INFO L280 TraceCheckUtils]: 0: Hoare triple {453#true} assume true; {453#true} is VALID [2020-07-10 20:24:18,621 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {453#true} {453#true} #93#return; {453#true} is VALID [2020-07-10 20:24:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:18,630 INFO L280 TraceCheckUtils]: 0: Hoare triple {453#true} ~cond := #in~cond; {453#true} is VALID [2020-07-10 20:24:18,630 INFO L280 TraceCheckUtils]: 1: Hoare triple {453#true} assume !(0 == ~cond); {453#true} is VALID [2020-07-10 20:24:18,631 INFO L280 TraceCheckUtils]: 2: Hoare triple {453#true} assume true; {453#true} is VALID [2020-07-10 20:24:18,632 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {453#true} {458#(<= 1 main_~i~0)} #97#return; {458#(<= 1 main_~i~0)} is VALID [2020-07-10 20:24:18,632 INFO L263 TraceCheckUtils]: 0: Hoare triple {453#true} call ULTIMATE.init(); {453#true} is VALID [2020-07-10 20:24:18,632 INFO L280 TraceCheckUtils]: 1: Hoare triple {453#true} assume true; {453#true} is VALID [2020-07-10 20:24:18,633 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {453#true} {453#true} #93#return; {453#true} is VALID [2020-07-10 20:24:18,633 INFO L263 TraceCheckUtils]: 3: Hoare triple {453#true} call #t~ret5 := main(); {453#true} is VALID [2020-07-10 20:24:18,633 INFO L280 TraceCheckUtils]: 4: Hoare triple {453#true} havoc ~i~0; {453#true} is VALID [2020-07-10 20:24:18,634 INFO L280 TraceCheckUtils]: 5: Hoare triple {453#true} havoc ~k~0; {453#true} is VALID [2020-07-10 20:24:18,634 INFO L280 TraceCheckUtils]: 6: Hoare triple {453#true} havoc ~n~0; {453#true} is VALID [2020-07-10 20:24:18,634 INFO L280 TraceCheckUtils]: 7: Hoare triple {453#true} havoc ~l~0; {453#true} is VALID [2020-07-10 20:24:18,635 INFO L280 TraceCheckUtils]: 8: Hoare triple {453#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {453#true} is VALID [2020-07-10 20:24:18,635 INFO L280 TraceCheckUtils]: 9: Hoare triple {453#true} ~n~0 := #t~nondet0; {453#true} is VALID [2020-07-10 20:24:18,635 INFO L280 TraceCheckUtils]: 10: Hoare triple {453#true} havoc #t~nondet0; {453#true} is VALID [2020-07-10 20:24:18,636 INFO L280 TraceCheckUtils]: 11: Hoare triple {453#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {453#true} is VALID [2020-07-10 20:24:18,636 INFO L280 TraceCheckUtils]: 12: Hoare triple {453#true} ~l~0 := #t~nondet1; {453#true} is VALID [2020-07-10 20:24:18,636 INFO L280 TraceCheckUtils]: 13: Hoare triple {453#true} havoc #t~nondet1; {453#true} is VALID [2020-07-10 20:24:18,637 INFO L280 TraceCheckUtils]: 14: Hoare triple {453#true} assume !!(~l~0 > 0); {457#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:18,638 INFO L280 TraceCheckUtils]: 15: Hoare triple {457#(<= 1 main_~l~0)} assume !!(~l~0 < 1000000); {457#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:18,639 INFO L280 TraceCheckUtils]: 16: Hoare triple {457#(<= 1 main_~l~0)} assume !!(~n~0 < 1000000); {457#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:18,640 INFO L280 TraceCheckUtils]: 17: Hoare triple {457#(<= 1 main_~l~0)} ~k~0 := 1; {457#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:18,640 INFO L280 TraceCheckUtils]: 18: Hoare triple {457#(<= 1 main_~l~0)} assume !!(~k~0 < ~n~0); {457#(<= 1 main_~l~0)} is VALID [2020-07-10 20:24:18,641 INFO L280 TraceCheckUtils]: 19: Hoare triple {457#(<= 1 main_~l~0)} ~i~0 := ~l~0; {458#(<= 1 main_~i~0)} is VALID [2020-07-10 20:24:18,642 INFO L280 TraceCheckUtils]: 20: Hoare triple {458#(<= 1 main_~i~0)} assume !!(~i~0 < ~n~0); {458#(<= 1 main_~i~0)} is VALID [2020-07-10 20:24:18,642 INFO L263 TraceCheckUtils]: 21: Hoare triple {458#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 <= ~i~0 then 1 else 0)); {453#true} is VALID [2020-07-10 20:24:18,643 INFO L280 TraceCheckUtils]: 22: Hoare triple {453#true} ~cond := #in~cond; {453#true} is VALID [2020-07-10 20:24:18,643 INFO L280 TraceCheckUtils]: 23: Hoare triple {453#true} assume !(0 == ~cond); {453#true} is VALID [2020-07-10 20:24:18,643 INFO L280 TraceCheckUtils]: 24: Hoare triple {453#true} assume true; {453#true} is VALID [2020-07-10 20:24:18,644 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {453#true} {458#(<= 1 main_~i~0)} #97#return; {458#(<= 1 main_~i~0)} is VALID [2020-07-10 20:24:18,645 INFO L280 TraceCheckUtils]: 26: Hoare triple {458#(<= 1 main_~i~0)} #t~post3 := ~i~0; {463#(<= 1 |main_#t~post3|)} is VALID [2020-07-10 20:24:18,646 INFO L280 TraceCheckUtils]: 27: Hoare triple {463#(<= 1 |main_#t~post3|)} ~i~0 := 1 + #t~post3; {464#(<= 2 main_~i~0)} is VALID [2020-07-10 20:24:18,647 INFO L280 TraceCheckUtils]: 28: Hoare triple {464#(<= 2 main_~i~0)} havoc #t~post3; {464#(<= 2 main_~i~0)} is VALID [2020-07-10 20:24:18,648 INFO L280 TraceCheckUtils]: 29: Hoare triple {464#(<= 2 main_~i~0)} assume !!(~i~0 < ~n~0); {464#(<= 2 main_~i~0)} is VALID [2020-07-10 20:24:18,649 INFO L263 TraceCheckUtils]: 30: Hoare triple {464#(<= 2 main_~i~0)} call __VERIFIER_assert((if 1 <= ~i~0 then 1 else 0)); {465#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 20:24:18,650 INFO L280 TraceCheckUtils]: 31: Hoare triple {465#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {466#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:24:18,651 INFO L280 TraceCheckUtils]: 32: Hoare triple {466#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {454#false} is VALID [2020-07-10 20:24:18,651 INFO L280 TraceCheckUtils]: 33: Hoare triple {454#false} assume !false; {454#false} is VALID [2020-07-10 20:24:18,654 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 20:24:18,654 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:18,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774818935] [2020-07-10 20:24:18,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:24:18,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-10 20:24:18,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134728449] [2020-07-10 20:24:18,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-07-10 20:24:18,657 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:24:18,658 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-10 20:24:18,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:18,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-10 20:24:18,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:24:18,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-10 20:24:18,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-10 20:24:18,702 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 8 states. [2020-07-10 20:24:19,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:19,227 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-07-10 20:24:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 20:24:19,227 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-07-10 20:24:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:24:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-10 20:24:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 60 transitions. [2020-07-10 20:24:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-10 20:24:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 60 transitions. [2020-07-10 20:24:19,235 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 60 transitions. [2020-07-10 20:24:19,301 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:19,301 INFO L225 Difference]: With dead ends: 59 [2020-07-10 20:24:19,302 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 20:24:19,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-07-10 20:24:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 20:24:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 20:24:19,305 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:24:19,305 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:19,305 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:19,305 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:19,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:19,306 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 20:24:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 20:24:19,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:19,307 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:19,307 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:19,307 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:19,307 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 20:24:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 20:24:19,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:19,308 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:19,308 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:24:19,308 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:24:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 20:24:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 20:24:19,309 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2020-07-10 20:24:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:24:19,309 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 20:24:19,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-10 20:24:19,310 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-10 20:24:19,310 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 20:24:19,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:19,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 20:24:19,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 20:24:19,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 20:24:19,759 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-10 20:24:19,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-10 20:24:19,760 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 20:24:19,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 20:24:19,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-10 20:24:19,761 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-10 20:24:19,761 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-10 20:24:19,761 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-10 20:24:19,761 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-10 20:24:19,761 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-10 20:24:19,762 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 27) the Hoare annotation is: true [2020-07-10 20:24:19,762 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,762 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,762 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-10 20:24:19,762 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-07-10 20:24:19,762 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-07-10 20:24:19,763 INFO L264 CegarLoopResult]: At program point L24(lines 24 25) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,763 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,763 INFO L264 CegarLoopResult]: At program point L24-3(line 24) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,764 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,765 INFO L264 CegarLoopResult]: At program point L20-3(lines 20 26) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,765 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-10 20:24:19,765 INFO L264 CegarLoopResult]: At program point L20-4(line 20) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,765 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-07-10 20:24:19,766 INFO L264 CegarLoopResult]: At program point L20-5(line 20) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,768 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-07-10 20:24:19,768 INFO L264 CegarLoopResult]: At program point L20-6(lines 20 26) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,769 INFO L271 CegarLoopResult]: At program point L20-7(lines 13 27) the Hoare annotation is: true [2020-07-10 20:24:19,769 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,769 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,774 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 |main_#t~post3|) (<= 1 main_~i~0)) [2020-07-10 20:24:19,775 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-10 20:24:19,775 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (and (<= 2 main_~i~0) (<= 1 main_~l~0) (<= 1 |main_#t~post3|)) [2020-07-10 20:24:19,775 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-07-10 20:24:19,775 INFO L264 CegarLoopResult]: At program point L21-5(lines 21 23) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,775 INFO L264 CegarLoopResult]: At program point L21-6(lines 21 23) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,775 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2020-07-10 20:24:19,776 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,776 INFO L264 CegarLoopResult]: At program point L22-1(lines 21 23) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-10 20:24:19,776 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,779 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-10 20:24:19,779 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-10 20:24:19,779 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-07-10 20:24:19,779 INFO L271 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: true [2020-07-10 20:24:19,780 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-10 20:24:19,780 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))) [2020-07-10 20:24:19,780 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-10 20:24:19,780 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))) [2020-07-10 20:24:19,780 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))) [2020-07-10 20:24:19,781 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-10 20:24:19,786 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 20:24:19,790 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:24:19,790 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:24:19,791 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-10 20:24:19,791 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-10 20:24:19,803 INFO L163 areAnnotationChecker]: CFG has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 20:24:19,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 08:24:19 BoogieIcfgContainer [2020-07-10 20:24:19,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 20:24:19,819 INFO L168 Benchmark]: Toolchain (without parser) took 3612.95 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 104.0 MB in the beginning and 207.5 MB in the end (delta: -103.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 20:24:19,820 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 20:24:19,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.08 ms. Allocated memory is still 145.8 MB. Free memory was 104.0 MB in the beginning and 94.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,821 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 145.8 MB. Free memory was 94.4 MB in the beginning and 92.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,822 INFO L168 Benchmark]: RCFGBuilder took 471.32 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 92.6 MB in the beginning and 159.1 MB in the end (delta: -66.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,823 INFO L168 Benchmark]: TraceAbstraction took 2822.28 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 159.1 MB in the beginning and 207.5 MB in the end (delta: -48.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 20:24:19,827 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 0.20 ms. Allocated memory is still 145.8 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.08 ms. Allocated memory is still 145.8 MB. Free memory was 104.0 MB in the beginning and 94.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 145.8 MB. Free memory was 94.4 MB in the beginning and 92.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.32 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 92.6 MB in the beginning and 159.1 MB in the end (delta: -66.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2822.28 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 159.1 MB in the beginning and 207.5 MB in the end (delta: -48.4 MB). There was no memory consumed. 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: 20]: Loop Invariant Derived loop invariant: 1 <= l - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - 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, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 88 SDtfs, 92 SDslu, 338 SDs, 0 SdLazy, 133 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 58 PreInvPairs, 101 NumberOfFragments, 169 HoareAnnotationTreeSize, 58 FomulaSimplifications, 318 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 46 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.2s 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...