/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/terminator_03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:34:35,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:34:35,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:34:35,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:34:35,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:34:35,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:34:35,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:34:35,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:34:35,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:34:35,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:34:35,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:34:35,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:34:35,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:34:35,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:34:35,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:34:35,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:34:35,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:34:35,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:34:35,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:34:35,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:34:35,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:34:35,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:34:35,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:34:35,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:34:35,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:34:35,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 06:34:35,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 06:34:35,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 06:34:35,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 06:34:35,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 06:34:35,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 06:34:35,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 06:34:35,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 06:34:35,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:34:35,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:34:35,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:34:35,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 06:34:35,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:34:35,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:34:35,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:34:35,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:34:35,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:34:35,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:34:35,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:34:35,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:34:35,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:34:35,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:34:35,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:34:35,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:34:35,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:34:35,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:34:35,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:34:35,302 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:34:35,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:34:35,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:34:35,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:34:35,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:34:35,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:34:35,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:34:35,304 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 06:34:35,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:34:35,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:34:35,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:34:35,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:34:35,660 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:34:35,661 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-2.i [2020-07-18 06:34:35,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518479d90/661970f4474d401d91f2454fe6f44273/FLAG5d93e75fb [2020-07-18 06:34:36,226 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:34:36,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-2.i [2020-07-18 06:34:36,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518479d90/661970f4474d401d91f2454fe6f44273/FLAG5d93e75fb [2020-07-18 06:34:36,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518479d90/661970f4474d401d91f2454fe6f44273 [2020-07-18 06:34:36,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:34:36,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:34:36,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:34:36,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:34:36,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:34:36,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55456146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36, skipping insertion in model container [2020-07-18 06:34:36,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:34:36,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:34:36,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:34:36,830 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:34:36,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:34:36,865 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:34:36,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36 WrapperNode [2020-07-18 06:34:36,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:34:36,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:34:36,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:34:36,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:34:36,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... [2020-07-18 06:34:36,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:34:36,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:34:36,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:34:36,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:34:36,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:34:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:34:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:34:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 06:34:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:34:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:34:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:34:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:34:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:34:37,340 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:34:37,340 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 06:34:37,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:34:37 BoogieIcfgContainer [2020-07-18 06:34:37,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:34:37,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:34:37,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:34:37,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:34:37,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:34:36" (1/3) ... [2020-07-18 06:34:37,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c245c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:34:37, skipping insertion in model container [2020-07-18 06:34:37,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:34:36" (2/3) ... [2020-07-18 06:34:37,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c245c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:34:37, skipping insertion in model container [2020-07-18 06:34:37,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:34:37" (3/3) ... [2020-07-18 06:34:37,371 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-2.i [2020-07-18 06:34:37,383 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:34:37,406 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:34:37,419 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:34:37,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:34:37,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:34:37,440 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:34:37,440 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:34:37,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:34:37,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:34:37,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:34:37,441 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:34:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-18 06:34:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-18 06:34:37,465 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:34:37,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:34:37,466 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:34:37,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:34:37,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1821115279, now seen corresponding path program 1 times [2020-07-18 06:34:37,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:34:37,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769103760] [2020-07-18 06:34:37,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:34:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:37,741 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#true} assume true; {30#true} is VALID [2020-07-18 06:34:37,742 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {30#true} {30#true} #58#return; {30#true} is VALID [2020-07-18 06:34:37,744 INFO L263 TraceCheckUtils]: 0: Hoare triple {30#true} call ULTIMATE.init(); {30#true} is VALID [2020-07-18 06:34:37,745 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#true} assume true; {30#true} is VALID [2020-07-18 06:34:37,745 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {30#true} {30#true} #58#return; {30#true} is VALID [2020-07-18 06:34:37,746 INFO L263 TraceCheckUtils]: 3: Hoare triple {30#true} call #t~ret2 := main(); {30#true} is VALID [2020-07-18 06:34:37,746 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {30#true} is VALID [2020-07-18 06:34:37,747 INFO L280 TraceCheckUtils]: 5: Hoare triple {30#true} ~x~0 := #t~nondet0; {30#true} is VALID [2020-07-18 06:34:37,747 INFO L280 TraceCheckUtils]: 6: Hoare triple {30#true} havoc #t~nondet0; {30#true} is VALID [2020-07-18 06:34:37,748 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {30#true} is VALID [2020-07-18 06:34:37,748 INFO L280 TraceCheckUtils]: 8: Hoare triple {30#true} ~y~0 := #t~nondet1; {30#true} is VALID [2020-07-18 06:34:37,749 INFO L280 TraceCheckUtils]: 9: Hoare triple {30#true} havoc #t~nondet1; {30#true} is VALID [2020-07-18 06:34:37,749 INFO L280 TraceCheckUtils]: 10: Hoare triple {30#true} assume !!(~y~0 <= 1000000); {30#true} is VALID [2020-07-18 06:34:37,752 INFO L280 TraceCheckUtils]: 11: Hoare triple {30#true} assume !(~y~0 > 0); {34#(<= main_~y~0 0)} is VALID [2020-07-18 06:34:37,755 INFO L263 TraceCheckUtils]: 12: Hoare triple {34#(<= main_~y~0 0)} call __VERIFIER_assert((if ~y~0 <= 0 || (~y~0 > 0 && ~x~0 >= 100) then 1 else 0)); {35#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-18 06:34:37,757 INFO L280 TraceCheckUtils]: 13: Hoare triple {35#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {36#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:34:37,760 INFO L280 TraceCheckUtils]: 14: Hoare triple {36#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {31#false} is VALID [2020-07-18 06:34:37,760 INFO L280 TraceCheckUtils]: 15: Hoare triple {31#false} assume !false; {31#false} is VALID [2020-07-18 06:34:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:34:37,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769103760] [2020-07-18 06:34:37,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:34:37,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 06:34:37,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553663384] [2020-07-18 06:34:37,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-18 06:34:37,778 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:34:37,782 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 06:34:37,816 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:37,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 06:34:37,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:34:37,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 06:34:37,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 06:34:37,830 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-07-18 06:34:38,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:38,091 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2020-07-18 06:34:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:34:38,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-18 06:34:38,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:34:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:34:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2020-07-18 06:34:38,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:34:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2020-07-18 06:34:38,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 54 transitions. [2020-07-18 06:34:38,246 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:38,259 INFO L225 Difference]: With dead ends: 47 [2020-07-18 06:34:38,259 INFO L226 Difference]: Without dead ends: 19 [2020-07-18 06:34:38,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-18 06:34:38,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-18 06:34:38,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-18 06:34:38,316 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:34:38,316 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2020-07-18 06:34:38,317 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-18 06:34:38,317 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-18 06:34:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:38,321 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-18 06:34:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-18 06:34:38,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:38,322 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:34:38,323 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-18 06:34:38,323 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-18 06:34:38,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:38,327 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-18 06:34:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-18 06:34:38,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:38,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:34:38,328 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:34:38,329 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:34:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-18 06:34:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-18 06:34:38,334 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2020-07-18 06:34:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:34:38,334 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-18 06:34:38,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 06:34:38,335 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 19 transitions. [2020-07-18 06:34:38,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-18 06:34:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-18 06:34:38,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:34:38,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:34:38,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:34:38,376 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:34:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:34:38,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1074850683, now seen corresponding path program 1 times [2020-07-18 06:34:38,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:34:38,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570297215] [2020-07-18 06:34:38,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:34:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:34:38,468 INFO L280 TraceCheckUtils]: 0: Hoare triple {211#true} assume true; {211#true} is VALID [2020-07-18 06:34:38,468 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {211#true} {211#true} #58#return; {211#true} is VALID [2020-07-18 06:34:38,469 INFO L263 TraceCheckUtils]: 0: Hoare triple {211#true} call ULTIMATE.init(); {211#true} is VALID [2020-07-18 06:34:38,469 INFO L280 TraceCheckUtils]: 1: Hoare triple {211#true} assume true; {211#true} is VALID [2020-07-18 06:34:38,470 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {211#true} {211#true} #58#return; {211#true} is VALID [2020-07-18 06:34:38,470 INFO L263 TraceCheckUtils]: 3: Hoare triple {211#true} call #t~ret2 := main(); {211#true} is VALID [2020-07-18 06:34:38,470 INFO L280 TraceCheckUtils]: 4: Hoare triple {211#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {211#true} is VALID [2020-07-18 06:34:38,471 INFO L280 TraceCheckUtils]: 5: Hoare triple {211#true} ~x~0 := #t~nondet0; {211#true} is VALID [2020-07-18 06:34:38,471 INFO L280 TraceCheckUtils]: 6: Hoare triple {211#true} havoc #t~nondet0; {211#true} is VALID [2020-07-18 06:34:38,471 INFO L280 TraceCheckUtils]: 7: Hoare triple {211#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {211#true} is VALID [2020-07-18 06:34:38,472 INFO L280 TraceCheckUtils]: 8: Hoare triple {211#true} ~y~0 := #t~nondet1; {211#true} is VALID [2020-07-18 06:34:38,472 INFO L280 TraceCheckUtils]: 9: Hoare triple {211#true} havoc #t~nondet1; {211#true} is VALID [2020-07-18 06:34:38,472 INFO L280 TraceCheckUtils]: 10: Hoare triple {211#true} assume !!(~y~0 <= 1000000); {211#true} is VALID [2020-07-18 06:34:38,473 INFO L280 TraceCheckUtils]: 11: Hoare triple {211#true} assume ~y~0 > 0; {215#(< 0 main_~y~0)} is VALID [2020-07-18 06:34:38,474 INFO L280 TraceCheckUtils]: 12: Hoare triple {215#(< 0 main_~y~0)} assume !(~x~0 < 100); {216#(and (< 0 main_~y~0) (< 99 main_~x~0))} is VALID [2020-07-18 06:34:38,476 INFO L263 TraceCheckUtils]: 13: Hoare triple {216#(and (< 0 main_~y~0) (< 99 main_~x~0))} call __VERIFIER_assert((if ~y~0 <= 0 || (~y~0 > 0 && ~x~0 >= 100) then 1 else 0)); {217#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-18 06:34:38,477 INFO L280 TraceCheckUtils]: 14: Hoare triple {217#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {218#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:34:38,478 INFO L280 TraceCheckUtils]: 15: Hoare triple {218#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {212#false} is VALID [2020-07-18 06:34:38,478 INFO L280 TraceCheckUtils]: 16: Hoare triple {212#false} assume !false; {212#false} is VALID [2020-07-18 06:34:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:34:38,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570297215] [2020-07-18 06:34:38,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:34:38,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 06:34:38,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358773776] [2020-07-18 06:34:38,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-07-18 06:34:38,483 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:34:38,483 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 06:34:38,505 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:38,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 06:34:38,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:34:38,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 06:34:38,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-18 06:34:38,507 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2020-07-18 06:34:38,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:38,602 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-18 06:34:38,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:34:38,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-07-18 06:34:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:34:38,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 06:34:38,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2020-07-18 06:34:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 06:34:38,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2020-07-18 06:34:38,607 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 19 transitions. [2020-07-18 06:34:38,632 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:38,632 INFO L225 Difference]: With dead ends: 19 [2020-07-18 06:34:38,632 INFO L226 Difference]: Without dead ends: 0 [2020-07-18 06:34:38,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-18 06:34:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-18 06:34:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-18 06:34:38,634 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:34:38,635 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-18 06:34:38,635 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 06:34:38,635 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 06:34:38,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:38,635 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 06:34:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:34:38,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:38,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:34:38,636 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 06:34:38,636 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 06:34:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:34:38,637 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 06:34:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:34:38,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:38,637 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:34:38,638 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:34:38,638 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:34:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-18 06:34:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-18 06:34:38,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-18 06:34:38,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:34:38,639 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-18 06:34:38,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 06:34:38,639 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-18 06:34:38,639 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:34:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:34:38,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:34:38,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 06:34:38,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-18 06:34:38,824 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-18 06:34:38,824 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-18 06:34:38,825 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-18 06:34:38,825 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 06:34:38,825 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-18 06:34:38,825 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-18 06:34:38,825 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:34:38,826 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:34:38,826 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-18 06:34:38,826 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-18 06:34:38,826 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:34:38,826 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 14 25) the Hoare annotation is: true [2020-07-18 06:34:38,826 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-07-18 06:34:38,827 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-18 06:34:38,827 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (< 0 main_~y~0) [2020-07-18 06:34:38,827 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-07-18 06:34:38,828 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-18 06:34:38,828 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-07-18 06:34:38,828 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 14 25) the Hoare annotation is: true [2020-07-18 06:34:38,828 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 25) the Hoare annotation is: true [2020-07-18 06:34:38,828 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (< 0 main_~y~0) [2020-07-18 06:34:38,829 INFO L271 CegarLoopResult]: At program point L18(lines 18 22) the Hoare annotation is: true [2020-07-18 06:34:38,829 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 22) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~y~0 0)) [2020-07-18 06:34:38,830 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-18 06:34:38,830 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-07-18 06:34:38,830 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-07-18 06:34:38,830 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-18 06:34:38,830 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 06:34:38,831 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 06:34:38,831 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 06:34:38,831 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 06:34:38,831 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 06:34:38,837 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-18 06:34:38,838 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:34:38,838 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:34:38,839 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-18 06:34:38,839 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-18 06:34:38,846 INFO L163 areAnnotationChecker]: CFG has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 06:34:38,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 06:34:38 BoogieIcfgContainer [2020-07-18 06:34:38,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 06:34:38,871 INFO L168 Benchmark]: Toolchain (without parser) took 2279.94 ms. Allocated memory was 140.0 MB in the beginning and 233.8 MB in the end (delta: 93.8 MB). Free memory was 105.6 MB in the beginning and 141.8 MB in the end (delta: -36.2 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:38,873 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 06:34:38,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.38 ms. Allocated memory is still 140.0 MB. Free memory was 105.2 MB in the beginning and 95.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:38,875 INFO L168 Benchmark]: Boogie Preprocessor took 35.60 ms. Allocated memory is still 140.0 MB. Free memory was 95.2 MB in the beginning and 93.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:38,877 INFO L168 Benchmark]: RCFGBuilder took 442.82 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.6 MB in the beginning and 164.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:38,879 INFO L168 Benchmark]: TraceAbstraction took 1510.17 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 163.9 MB in the beginning and 141.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2020-07-18 06:34:38,895 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 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.38 ms. Allocated memory is still 140.0 MB. Free memory was 105.2 MB in the beginning and 95.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.60 ms. Allocated memory is still 140.0 MB. Free memory was 95.2 MB in the beginning and 93.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.82 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.6 MB in the beginning and 164.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1510.17 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 163.9 MB in the beginning and 141.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 53.1 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: 0 < y - ProcedureContractResult [Line: 14]: 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, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 12 SDslu, 117 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 39 PreInvPairs, 53 NumberOfFragments, 62 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 37 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...