/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:40,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:40,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:40,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:40,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:40,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:40,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:40,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:40,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:40,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:40,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:40,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:40,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:40,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:40,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:40,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:40,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:40,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:40,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:40,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:40,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:40,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:40,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:40,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:40,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:40,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:40,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:40,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:40,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:50:40,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:40,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:40,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:40,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:40,548 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:40,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:40,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:40,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:40,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:40,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:40,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:40,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:40,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:40,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:40,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:40,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:40,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:40,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:40,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:40,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:40,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:40,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:40,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:40,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:40,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:40,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:40,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:40,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:40,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:40,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:40,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:40,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:40,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:40,966 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:40,967 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:40,969 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-2.i [2020-07-17 22:50:41,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddea204e1/7ffc564dc3764a768832cebcc268d1f1/FLAG47e6040aa [2020-07-17 22:50:41,700 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:41,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01-2.i [2020-07-17 22:50:41,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddea204e1/7ffc564dc3764a768832cebcc268d1f1/FLAG47e6040aa [2020-07-17 22:50:42,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddea204e1/7ffc564dc3764a768832cebcc268d1f1 [2020-07-17 22:50:42,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:42,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:42,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:42,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:42,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:42,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5445e8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42, skipping insertion in model container [2020-07-17 22:50:42,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:42,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:42,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:42,327 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:42,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:42,383 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:42,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42 WrapperNode [2020-07-17 22:50:42,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:42,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:42,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:42,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:42,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:42,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:42,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:42,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:42,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (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 [2020-07-17 22:50:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:50:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-17 22:50:42,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:50:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:50:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-17 22:50:42,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-17 22:50:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:43,123 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:43,124 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 22:50:43,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:43 BoogieIcfgContainer [2020-07-17 22:50:43,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:43,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:43,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:43,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:43,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:42" (1/3) ... [2020-07-17 22:50:43,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dff280c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:43, skipping insertion in model container [2020-07-17 22:50:43,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (2/3) ... [2020-07-17 22:50:43,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dff280c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:43, skipping insertion in model container [2020-07-17 22:50:43,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:43" (3/3) ... [2020-07-17 22:50:43,143 INFO L109 eAbstractionObserver]: Analyzing ICFG trex01-2.i [2020-07-17 22:50:43,165 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:43,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:43,199 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:43,235 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:43,235 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:43,236 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:43,236 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:43,236 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:43,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:43,236 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:43,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:43,266 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-17 22:50:43,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-17 22:50:43,276 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:43,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:43,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:43,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash -409844558, now seen corresponding path program 1 times [2020-07-17 22:50:43,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:43,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044152010] [2020-07-17 22:50:43,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:43,506 INFO L280 TraceCheckUtils]: 0: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:50:43,508 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {34#true} {34#true} #90#return; {34#true} is VALID [2020-07-17 22:50:43,511 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {34#true} is VALID [2020-07-17 22:50:43,512 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:50:43,512 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #90#return; {34#true} is VALID [2020-07-17 22:50:43,513 INFO L263 TraceCheckUtils]: 3: Hoare triple {34#true} call #t~ret6 := main(); {34#true} is VALID [2020-07-17 22:50:43,514 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#true} ~c~1 := #t~nondet5;havoc #t~nondet5; {34#true} is VALID [2020-07-17 22:50:43,514 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#true} assume 0 != ~c~1 % 256; {34#true} is VALID [2020-07-17 22:50:43,515 INFO L263 TraceCheckUtils]: 6: Hoare triple {34#true} call f(1); {34#true} is VALID [2020-07-17 22:50:43,516 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#true} ~d := #in~d;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~k~0 := #t~nondet2;havoc #t~nondet2;~z~0 := 1; {34#true} is VALID [2020-07-17 22:50:43,516 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#true} assume !!(~k~0 <= 1073741823); {34#true} is VALID [2020-07-17 22:50:43,518 INFO L280 TraceCheckUtils]: 9: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-17 22:50:43,518 INFO L263 TraceCheckUtils]: 10: Hoare triple {35#false} call __VERIFIER_assert((if ~z~0 >= 1 then 1 else 0)); {35#false} is VALID [2020-07-17 22:50:43,519 INFO L280 TraceCheckUtils]: 11: Hoare triple {35#false} ~cond := #in~cond; {35#false} is VALID [2020-07-17 22:50:43,519 INFO L280 TraceCheckUtils]: 12: Hoare triple {35#false} assume 0 == ~cond; {35#false} is VALID [2020-07-17 22:50:43,519 INFO L280 TraceCheckUtils]: 13: Hoare triple {35#false} assume !false; {35#false} is VALID [2020-07-17 22:50:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:43,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044152010] [2020-07-17 22:50:43,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:43,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-17 22:50:43,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109274849] [2020-07-17 22:50:43,539 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-07-17 22:50:43,549 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:43,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-17 22:50:43,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:43,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-17 22:50:43,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:43,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-17 22:50:43,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 22:50:43,683 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-07-17 22:50:43,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:43,825 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2020-07-17 22:50:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-17 22:50:43,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-07-17 22:50:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:43,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-17 22:50:43,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 70 transitions. [2020-07-17 22:50:43,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-17 22:50:43,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 70 transitions. [2020-07-17 22:50:43,854 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 70 transitions. [2020-07-17 22:50:44,112 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:44,140 INFO L225 Difference]: With dead ends: 51 [2020-07-17 22:50:44,140 INFO L226 Difference]: Without dead ends: 16 [2020-07-17 22:50:44,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 22:50:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-17 22:50:44,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-17 22:50:44,197 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:44,198 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2020-07-17 22:50:44,199 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-17 22:50:44,200 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-17 22:50:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,206 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-07-17 22:50:44,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-07-17 22:50:44,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:44,207 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-17 22:50:44,207 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-17 22:50:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,211 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-07-17 22:50:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-07-17 22:50:44,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:44,213 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:44,213 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-17 22:50:44,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-07-17 22:50:44,217 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2020-07-17 22:50:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:44,217 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-07-17 22:50:44,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-17 22:50:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-07-17 22:50:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-17 22:50:44,218 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:44,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:44,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:44,219 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:44,220 INFO L82 PathProgramCache]: Analyzing trace with hash -413538642, now seen corresponding path program 1 times [2020-07-17 22:50:44,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:44,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719988234] [2020-07-17 22:50:44,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:44,448 INFO L280 TraceCheckUtils]: 0: Hoare triple {163#true} assume true; {163#true} is VALID [2020-07-17 22:50:44,449 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {163#true} {163#true} #90#return; {163#true} is VALID [2020-07-17 22:50:44,449 INFO L263 TraceCheckUtils]: 0: Hoare triple {163#true} call ULTIMATE.init(); {163#true} is VALID [2020-07-17 22:50:44,449 INFO L280 TraceCheckUtils]: 1: Hoare triple {163#true} assume true; {163#true} is VALID [2020-07-17 22:50:44,450 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {163#true} {163#true} #90#return; {163#true} is VALID [2020-07-17 22:50:44,450 INFO L263 TraceCheckUtils]: 3: Hoare triple {163#true} call #t~ret6 := main(); {163#true} is VALID [2020-07-17 22:50:44,450 INFO L280 TraceCheckUtils]: 4: Hoare triple {163#true} ~c~1 := #t~nondet5;havoc #t~nondet5; {163#true} is VALID [2020-07-17 22:50:44,451 INFO L280 TraceCheckUtils]: 5: Hoare triple {163#true} assume 0 != ~c~1 % 256; {163#true} is VALID [2020-07-17 22:50:44,451 INFO L263 TraceCheckUtils]: 6: Hoare triple {163#true} call f(1); {163#true} is VALID [2020-07-17 22:50:44,454 INFO L280 TraceCheckUtils]: 7: Hoare triple {163#true} ~d := #in~d;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~k~0 := #t~nondet2;havoc #t~nondet2;~z~0 := 1; {167#(<= 1 f_~z~0)} is VALID [2020-07-17 22:50:44,456 INFO L280 TraceCheckUtils]: 8: Hoare triple {167#(<= 1 f_~z~0)} assume !!(~k~0 <= 1073741823); {167#(<= 1 f_~z~0)} is VALID [2020-07-17 22:50:44,459 INFO L280 TraceCheckUtils]: 9: Hoare triple {167#(<= 1 f_~z~0)} assume !(~z~0 < ~k~0); {167#(<= 1 f_~z~0)} is VALID [2020-07-17 22:50:44,460 INFO L263 TraceCheckUtils]: 10: Hoare triple {167#(<= 1 f_~z~0)} call __VERIFIER_assert((if ~z~0 >= 1 then 1 else 0)); {168#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-17 22:50:44,461 INFO L280 TraceCheckUtils]: 11: Hoare triple {168#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {169#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-17 22:50:44,462 INFO L280 TraceCheckUtils]: 12: Hoare triple {169#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {164#false} is VALID [2020-07-17 22:50:44,462 INFO L280 TraceCheckUtils]: 13: Hoare triple {164#false} assume !false; {164#false} is VALID [2020-07-17 22:50:44,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:44,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719988234] [2020-07-17 22:50:44,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:44,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:50:44,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150578047] [2020-07-17 22:50:44,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-17 22:50:44,469 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:44,469 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:50:44,512 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:44,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:50:44,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:44,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:50:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:50:44,514 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-07-17 22:50:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,701 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-07-17 22:50:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:50:44,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-17 22:50:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:44,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:44,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-07-17 22:50:44,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-07-17 22:50:44,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 17 transitions. [2020-07-17 22:50:44,735 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:44,736 INFO L225 Difference]: With dead ends: 16 [2020-07-17 22:50:44,736 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:50:44,738 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 [2020-07-17 22:50:44,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:50:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:50:44,740 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:44,740 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,740 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,740 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,741 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:44,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,741 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:44,741 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,742 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,742 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:44,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,743 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:44,743 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:44,743 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:44,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:50:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:50:44,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-17 22:50:44,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:44,745 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:50:44,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:50:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:44,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:44,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:50:44,818 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 22:50:44,819 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,819 INFO L268 CegarLoopResult]: For program point L27(lines 27 34) no Hoare annotation was computed. [2020-07-17 22:50:44,819 INFO L271 CegarLoopResult]: At program point L27-2(lines 25 35) the Hoare annotation is: true [2020-07-17 22:50:44,819 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-07-17 22:50:44,819 INFO L268 CegarLoopResult]: For program point L25-2(lines 14 36) no Hoare annotation was computed. [2020-07-17 22:50:44,820 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (<= 1 f_~z~0) [2020-07-17 22:50:44,820 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (<= 1 f_~z~0) [2020-07-17 22:50:44,820 INFO L268 CegarLoopResult]: For program point fEXIT(lines 14 36) no Hoare annotation was computed. [2020-07-17 22:50:44,820 INFO L271 CegarLoopResult]: At program point fENTRY(lines 14 36) the Hoare annotation is: true [2020-07-17 22:50:44,820 INFO L268 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-07-17 22:50:44,821 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-07-17 22:50:44,821 INFO L268 CegarLoopResult]: For program point L20(lines 14 36) no Hoare annotation was computed. [2020-07-17 22:50:44,821 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-17 22:50:44,821 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,821 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:50:44,822 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:50:44,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,822 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-17 22:50:44,822 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-17 22:50:44,822 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-17 22:50:44,823 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-17 22:50:44,823 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 37 45) the Hoare annotation is: true [2020-07-17 22:50:44,823 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 37 45) no Hoare annotation was computed. [2020-07-17 22:50:44,823 INFO L271 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-07-17 22:50:44,823 INFO L268 CegarLoopResult]: For program point L42-1(lines 39 43) no Hoare annotation was computed. [2020-07-17 22:50:44,824 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 37 45) no Hoare annotation was computed. [2020-07-17 22:50:44,824 INFO L271 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: true [2020-07-17 22:50:44,824 INFO L268 CegarLoopResult]: For program point L39(lines 39 43) no Hoare annotation was computed. [2020-07-17 22:50:44,824 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-17 22:50:44,824 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-17 22:50:44,824 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-17 22:50:44,825 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-17 22:50:44,825 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-17 22:50:44,825 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-17 22:50:44,831 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:44,832 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-17 22:50:44,832 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:50:44,832 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-17 22:50:44,833 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-17 22:50:44,833 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:44,833 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-17 22:50:44,833 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-17 22:50:44,833 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-17 22:50:44,834 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-17 22:50:44,837 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:44,837 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-17 22:50:44,837 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-17 22:50:44,837 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-17 22:50:44,837 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:44,838 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:44,838 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-17 22:50:44,838 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-17 22:50:44,838 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-17 22:50:44,838 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:44,839 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-17 22:50:44,839 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:44,839 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:44,839 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:44,839 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:44,840 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:44,840 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:44,840 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:44,840 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:50:44,840 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:50:44,840 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-17 22:50:44,841 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-17 22:50:44,841 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:50:44,841 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:50:44,841 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:50:44,841 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-17 22:50:44,841 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:50:44,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:44 BoogieIcfgContainer [2020-07-17 22:50:44,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:44,861 INFO L168 Benchmark]: Toolchain (without parser) took 2812.33 ms. Allocated memory was 145.2 MB in the beginning and 236.5 MB in the end (delta: 91.2 MB). Free memory was 102.1 MB in the beginning and 186.9 MB in the end (delta: -84.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,863 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.25 ms. Allocated memory is still 145.2 MB. Free memory was 101.7 MB in the beginning and 91.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,865 INFO L168 Benchmark]: Boogie Preprocessor took 184.31 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 91.4 MB in the beginning and 182.8 MB in the end (delta: -91.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,866 INFO L168 Benchmark]: RCFGBuilder took 558.42 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 160.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,867 INFO L168 Benchmark]: TraceAbstraction took 1725.11 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 159.4 MB in the beginning and 186.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,872 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 0.39 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.25 ms. Allocated memory is still 145.2 MB. Free memory was 101.7 MB in the beginning and 91.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.31 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 91.4 MB in the beginning and 182.8 MB in the end (delta: -91.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.42 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 160.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1725.11 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 159.4 MB in the beginning and 186.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 5.0 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: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= z - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 1 SDslu, 33 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 11 LocationsWithAnnotation, 16 PreInvPairs, 20 NumberOfFragments, 15 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 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...