/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/for_infinite_loop_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:10,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:10,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:10,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:10,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:10,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:10,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:10,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:10,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:10,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:10,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:10,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:10,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:10,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:10,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:10,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:10,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:10,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:10,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:10,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:10,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:10,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:10,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:10,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:10,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:10,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:10,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:10,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:10,516 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 22:50:10,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:10,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:10,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:10,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:10,540 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:10,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:10,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:10,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:10,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:10,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:10,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:10,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:10,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:10,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:10,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:10,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:10,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:10,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:10,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:10,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:10,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:10,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:10,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:10,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:10,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:10,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:10,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:10,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:10,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:10,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:10,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:10,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:10,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:10,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:10,896 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:10,897 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_2.c [2020-07-17 22:50:10,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2756a87/265e59372f184506a2378fc5246e779b/FLAG46a9f2abd [2020-07-17 22:50:11,413 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:11,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_2.c [2020-07-17 22:50:11,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2756a87/265e59372f184506a2378fc5246e779b/FLAG46a9f2abd [2020-07-17 22:50:11,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2756a87/265e59372f184506a2378fc5246e779b [2020-07-17 22:50:11,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:11,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:11,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:11,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:11,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:11,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:11" (1/1) ... [2020-07-17 22:50:11,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f736972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:11, skipping insertion in model container [2020-07-17 22:50:11,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:11" (1/1) ... [2020-07-17 22:50:11,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:11,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:12,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:12,073 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:12,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:12,105 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:12,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12 WrapperNode [2020-07-17 22:50:12,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:12,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:12,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:12,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:12,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (1/1) ... [2020-07-17 22:50:12,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:12,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:12,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:12,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:12,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (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 22:50:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:50:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:50:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:50:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:12,521 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:12,522 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 22:50:12,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:12 BoogieIcfgContainer [2020-07-17 22:50:12,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:12,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:12,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:12,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:12,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:11" (1/3) ... [2020-07-17 22:50:12,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78228f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:12, skipping insertion in model container [2020-07-17 22:50:12,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:12" (2/3) ... [2020-07-17 22:50:12,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78228f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:12, skipping insertion in model container [2020-07-17 22:50:12,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:12" (3/3) ... [2020-07-17 22:50:12,534 INFO L109 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_2.c [2020-07-17 22:50:12,549 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:12,568 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:12,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:12,639 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:12,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:12,640 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:12,640 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:12,640 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:12,640 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:12,640 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:12,645 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-17 22:50:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:50:12,671 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:12,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:12,672 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:12,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:12,676 INFO L82 PathProgramCache]: Analyzing trace with hash -253525299, now seen corresponding path program 1 times [2020-07-17 22:50:12,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:12,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488827882] [2020-07-17 22:50:12,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:12,817 INFO L280 TraceCheckUtils]: 0: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-17 22:50:12,818 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23#true} {23#true} #45#return; {23#true} is VALID [2020-07-17 22:50:12,819 INFO L263 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {23#true} is VALID [2020-07-17 22:50:12,820 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-17 22:50:12,820 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #45#return; {23#true} is VALID [2020-07-17 22:50:12,820 INFO L263 TraceCheckUtils]: 3: Hoare triple {23#true} call #t~ret2 := main(); {23#true} is VALID [2020-07-17 22:50:12,821 INFO L280 TraceCheckUtils]: 4: Hoare triple {23#true} ~i~0 := 0;~x~0 := 0;~y~0 := 0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {23#true} is VALID [2020-07-17 22:50:12,823 INFO L280 TraceCheckUtils]: 5: Hoare triple {23#true} assume !!(~n~0 > 0);~i~0 := 0; {23#true} is VALID [2020-07-17 22:50:12,828 INFO L280 TraceCheckUtils]: 6: Hoare triple {23#true} assume false; {24#false} is VALID [2020-07-17 22:50:12,828 INFO L263 TraceCheckUtils]: 7: Hoare triple {24#false} call __VERIFIER_assert((if 0 != ~x~0 then 1 else 0)); {24#false} is VALID [2020-07-17 22:50:12,829 INFO L280 TraceCheckUtils]: 8: Hoare triple {24#false} ~cond := #in~cond; {24#false} is VALID [2020-07-17 22:50:12,829 INFO L280 TraceCheckUtils]: 9: Hoare triple {24#false} assume 0 == ~cond; {24#false} is VALID [2020-07-17 22:50:12,830 INFO L280 TraceCheckUtils]: 10: Hoare triple {24#false} assume !false; {24#false} is VALID [2020-07-17 22:50:12,831 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 22:50:12,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488827882] [2020-07-17 22:50:12,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:12,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-17 22:50:12,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213498131] [2020-07-17 22:50:12,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-17 22:50:12,842 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:12,846 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-17 22:50:12,907 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:12,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-17 22:50:12,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:12,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-17 22:50:12,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 22:50:12,926 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-07-17 22:50:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:13,033 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2020-07-17 22:50:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-17 22:50:13,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-17 22:50:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-17 22:50:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 40 transitions. [2020-07-17 22:50:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-17 22:50:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 40 transitions. [2020-07-17 22:50:13,061 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 40 transitions. [2020-07-17 22:50:13,175 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:13,188 INFO L225 Difference]: With dead ends: 33 [2020-07-17 22:50:13,188 INFO L226 Difference]: Without dead ends: 15 [2020-07-17 22:50:13,192 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 22:50:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-17 22:50:13,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-17 22:50:13,235 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:13,236 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-17 22:50:13,237 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-17 22:50:13,237 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-17 22:50:13,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:13,241 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-17 22:50:13,241 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-17 22:50:13,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:13,242 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:13,243 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-17 22:50:13,243 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-17 22:50:13,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:13,252 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-17 22:50:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-17 22:50:13,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:13,253 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:13,254 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:13,254 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-17 22:50:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-17 22:50:13,260 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2020-07-17 22:50:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:13,261 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-17 22:50:13,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-17 22:50:13,262 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-17 22:50:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:50:13,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:13,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:13,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:13,265 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:13,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:13,267 INFO L82 PathProgramCache]: Analyzing trace with hash -251737839, now seen corresponding path program 1 times [2020-07-17 22:50:13,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:13,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913719683] [2020-07-17 22:50:13,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:13,442 INFO L280 TraceCheckUtils]: 0: Hoare triple {125#true} assume true; {125#true} is VALID [2020-07-17 22:50:13,442 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {125#true} {125#true} #45#return; {125#true} is VALID [2020-07-17 22:50:13,443 INFO L263 TraceCheckUtils]: 0: Hoare triple {125#true} call ULTIMATE.init(); {125#true} is VALID [2020-07-17 22:50:13,443 INFO L280 TraceCheckUtils]: 1: Hoare triple {125#true} assume true; {125#true} is VALID [2020-07-17 22:50:13,444 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {125#true} {125#true} #45#return; {125#true} is VALID [2020-07-17 22:50:13,444 INFO L263 TraceCheckUtils]: 3: Hoare triple {125#true} call #t~ret2 := main(); {125#true} is VALID [2020-07-17 22:50:13,446 INFO L280 TraceCheckUtils]: 4: Hoare triple {125#true} ~i~0 := 0;~x~0 := 0;~y~0 := 0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {129#(= 0 main_~x~0)} is VALID [2020-07-17 22:50:13,447 INFO L280 TraceCheckUtils]: 5: Hoare triple {129#(= 0 main_~x~0)} assume !!(~n~0 > 0);~i~0 := 0; {129#(= 0 main_~x~0)} is VALID [2020-07-17 22:50:13,448 INFO L280 TraceCheckUtils]: 6: Hoare triple {129#(= 0 main_~x~0)} assume !false; {129#(= 0 main_~x~0)} is VALID [2020-07-17 22:50:13,450 INFO L263 TraceCheckUtils]: 7: Hoare triple {129#(= 0 main_~x~0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {130#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-17 22:50:13,453 INFO L280 TraceCheckUtils]: 8: Hoare triple {130#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {131#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-17 22:50:13,455 INFO L280 TraceCheckUtils]: 9: Hoare triple {131#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {126#false} is VALID [2020-07-17 22:50:13,455 INFO L280 TraceCheckUtils]: 10: Hoare triple {126#false} assume !false; {126#false} is VALID [2020-07-17 22:50:13,457 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 22:50:13,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913719683] [2020-07-17 22:50:13,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:13,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:50:13,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529304227] [2020-07-17 22:50:13,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-17 22:50:13,461 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:13,461 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:50:13,480 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:13,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:50:13,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:13,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:50:13,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:50:13,482 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-07-17 22:50:13,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:13,577 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-17 22:50:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:50:13,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-17 22:50:13,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-17 22:50:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-17 22:50:13,582 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 15 transitions. [2020-07-17 22:50:13,608 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:13,609 INFO L225 Difference]: With dead ends: 15 [2020-07-17 22:50:13,609 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:50:13,610 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 22:50:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:50:13,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:50:13,611 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:13,611 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:13,612 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:13,612 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:13,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:13,612 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:13,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:13,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:13,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:13,613 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:13,614 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:13,614 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:13,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:13,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:13,615 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:13,615 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:13,615 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:50:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:50:13,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-07-17 22:50:13,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:13,616 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:50:13,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:50:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:13,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:13,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:13,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:50:13,666 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 22:50:13,666 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:13,666 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:13,667 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:50:13,667 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:50:13,667 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:13,667 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-17 22:50:13,667 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-17 22:50:13,668 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-17 22:50:13,668 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-17 22:50:13,668 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2020-07-17 22:50:13,668 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 26) no Hoare annotation was computed. [2020-07-17 22:50:13,669 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= 0 main_~x~0) [2020-07-17 22:50:13,669 INFO L268 CegarLoopResult]: For program point L23-1(lines 21 24) no Hoare annotation was computed. [2020-07-17 22:50:13,669 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-07-17 22:50:13,669 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 24) the Hoare annotation is: (= 0 main_~x~0) [2020-07-17 22:50:13,669 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 24) the Hoare annotation is: false [2020-07-17 22:50:13,670 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 26) no Hoare annotation was computed. [2020-07-17 22:50:13,670 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-07-17 22:50:13,670 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 7 12) no Hoare annotation was computed. [2020-07-17 22:50:13,670 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-07-17 22:50:13,670 INFO L268 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-07-17 22:50:13,670 INFO L268 CegarLoopResult]: For program point L8-2(lines 7 12) no Hoare annotation was computed. [2020-07-17 22:50:13,671 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-07-17 22:50:13,676 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:13,677 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:50:13,677 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:13,677 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:13,677 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:13,677 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:13,678 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-17 22:50:13,678 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-17 22:50:13,678 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:13,678 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:13,678 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:13,678 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:13,679 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:13,679 WARN L170 areAnnotationChecker]: L5-2 has no Hoare annotation [2020-07-17 22:50:13,679 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:13,681 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-17 22:50:13,682 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-17 22:50:13,682 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-17 22:50:13,682 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:13,682 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:13,682 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:50:13,683 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:13,683 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:13,683 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:50:13,683 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:50:13,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:13 BoogieIcfgContainer [2020-07-17 22:50:13,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:13,700 INFO L168 Benchmark]: Toolchain (without parser) took 1896.08 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 90.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:13,701 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:13,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.12 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:13,703 INFO L168 Benchmark]: Boogie Preprocessor took 107.59 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 181.3 MB in the end (delta: -88.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:13,704 INFO L168 Benchmark]: RCFGBuilder took 311.03 ms. Allocated memory is still 201.3 MB. Free memory was 180.4 MB in the beginning and 163.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:13,705 INFO L168 Benchmark]: TraceAbstraction took 1169.33 ms. Allocated memory is still 201.3 MB. Free memory was 162.9 MB in the beginning and 90.8 MB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:13,710 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 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.12 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.59 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 181.3 MB in the end (delta: -88.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.03 ms. Allocated memory is still 201.3 MB. Free memory was 180.4 MB in the beginning and 163.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1169.33 ms. Allocated memory is still 201.3 MB. Free memory was 162.9 MB in the beginning and 90.8 MB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 21]: Loop Invariant Derived loop invariant: 0 == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 6 SDslu, 23 SDs, 0 SdLazy, 7 SolverSat, 0 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=20occurred 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, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 12 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 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...