/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_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:27:21,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:27:21,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:27:21,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:27:21,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:27:22,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:27:22,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:27:22,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:27:22,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:27:22,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:27:22,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:27:22,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:27:22,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:27:22,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:27:22,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:27:22,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:27:22,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:27:22,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:27:22,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:27:22,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:27:22,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:27:22,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:27:22,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:27:22,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:27:22,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:27:22,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:27:22,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:27:22,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:27:22,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:27:22,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:27:22,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:27:22,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:27:22,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:27:22,066 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:27:22,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:27:22,067 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:27:22,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:27:22,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:27:22,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:27:22,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:27:22,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:27:22,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:27:22,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:27:22,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:27:22,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:27:22,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:27:22,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:27:22,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:27:22,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:27:22,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:27:22,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:22,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:27:22,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:27:22,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:27:22,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:27:22,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:27:22,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:27:22,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:27:22,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:27:22,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:27:22,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:27:22,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:27:22,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:27:22,425 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:27:22,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_1.c [2020-07-10 15:27:22,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc6fd5b8/351092682ccb4040a86414be4a408345/FLAGc3821d71b [2020-07-10 15:27:23,097 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:27:23,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_1.c [2020-07-10 15:27:23,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc6fd5b8/351092682ccb4040a86414be4a408345/FLAGc3821d71b [2020-07-10 15:27:23,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc6fd5b8/351092682ccb4040a86414be4a408345 [2020-07-10 15:27:23,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:27:23,437 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:27:23,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:23,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:27:23,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:27:23,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a985fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23, skipping insertion in model container [2020-07-10 15:27:23,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:27:23,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:27:23,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:23,701 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:27:23,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:23,753 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:27:23,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23 WrapperNode [2020-07-10 15:27:23,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:23,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:27:23,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:27:23,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:27:23,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... [2020-07-10 15:27:23,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:27:23,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:27:23,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:27:23,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:27:23,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:27:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:27:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:27:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:27:23,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:27:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:27:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:27:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:27:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:27:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:27:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:27:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:27:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:27:24,303 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:27:24,303 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:27:24,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:24 BoogieIcfgContainer [2020-07-10 15:27:24,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:27:24,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:27:24,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:27:24,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:27:24,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:27:23" (1/3) ... [2020-07-10 15:27:24,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19695454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:24, skipping insertion in model container [2020-07-10 15:27:24,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:23" (2/3) ... [2020-07-10 15:27:24,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19695454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:24, skipping insertion in model container [2020-07-10 15:27:24,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:24" (3/3) ... [2020-07-10 15:27:24,322 INFO L109 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1.c [2020-07-10 15:27:24,340 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:27:24,352 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:27:24,380 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:27:24,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:27:24,427 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:27:24,428 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:27:24,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:27:24,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:27:24,429 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:27:24,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:27:24,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:27:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-10 15:27:24,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:27:24,462 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:24,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:27:24,465 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:24,473 INFO L82 PathProgramCache]: Analyzing trace with hash -253525299, now seen corresponding path program 1 times [2020-07-10 15:27:24,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:24,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241493744] [2020-07-10 15:27:24,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:24,657 INFO L280 TraceCheckUtils]: 0: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-10 15:27:24,658 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23#true} {23#true} #45#return; {23#true} is VALID [2020-07-10 15:27:24,661 INFO L263 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {23#true} is VALID [2020-07-10 15:27:24,662 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-10 15:27:24,663 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #45#return; {23#true} is VALID [2020-07-10 15:27:24,663 INFO L263 TraceCheckUtils]: 3: Hoare triple {23#true} call #t~ret2 := main(); {23#true} is VALID [2020-07-10 15:27:24,664 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 [2020-07-10 15:27:24,664 INFO L280 TraceCheckUtils]: 5: Hoare triple {23#true} assume !!(~n~0 > 0);~i~0 := 0; {23#true} is VALID [2020-07-10 15:27:24,666 INFO L280 TraceCheckUtils]: 6: Hoare triple {23#true} assume false; {24#false} is VALID [2020-07-10 15:27:24,667 INFO L263 TraceCheckUtils]: 7: Hoare triple {24#false} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {24#false} is VALID [2020-07-10 15:27:24,667 INFO L280 TraceCheckUtils]: 8: Hoare triple {24#false} ~cond := #in~cond; {24#false} is VALID [2020-07-10 15:27:24,667 INFO L280 TraceCheckUtils]: 9: Hoare triple {24#false} assume 0 == ~cond; {24#false} is VALID [2020-07-10 15:27:24,668 INFO L280 TraceCheckUtils]: 10: Hoare triple {24#false} assume !false; {24#false} is VALID [2020-07-10 15:27:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:27:24,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241493744] [2020-07-10 15:27:24,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:24,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-10 15:27:24,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536320075] [2020-07-10 15:27:24,681 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-10 15:27:24,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:24,691 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-10 15:27:24,745 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:24,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-10 15:27:24,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:24,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-10 15:27:24,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-10 15:27:24,763 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-07-10 15:27:24,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:24,849 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2020-07-10 15:27:24,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-10 15:27:24,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-10 15:27:24,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 15:27:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 40 transitions. [2020-07-10 15:27:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 15:27:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 40 transitions. [2020-07-10 15:27:24,867 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 40 transitions. [2020-07-10 15:27:25,007 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:25,022 INFO L225 Difference]: With dead ends: 33 [2020-07-10 15:27:25,022 INFO L226 Difference]: Without dead ends: 15 [2020-07-10 15:27:25,027 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 [2020-07-10 15:27:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-10 15:27:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-10 15:27:25,078 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:25,079 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-10 15:27:25,080 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 15:27:25,080 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 15:27:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:25,085 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 15:27:25,086 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 15:27:25,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:25,087 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:25,087 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 15:27:25,088 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 15:27:25,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:25,092 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 15:27:25,092 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 15:27:25,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:25,093 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:25,094 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:25,094 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-10 15:27:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-10 15:27:25,100 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2020-07-10 15:27:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:25,100 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-10 15:27:25,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-10 15:27:25,101 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 15:27:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:27:25,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:25,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:27:25,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:27:25,103 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:25,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:25,104 INFO L82 PathProgramCache]: Analyzing trace with hash -251737839, now seen corresponding path program 1 times [2020-07-10 15:27:25,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:25,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508571047] [2020-07-10 15:27:25,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:25,308 INFO L280 TraceCheckUtils]: 0: Hoare triple {125#true} assume true; {125#true} is VALID [2020-07-10 15:27:25,309 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {125#true} {125#true} #45#return; {125#true} is VALID [2020-07-10 15:27:25,309 INFO L263 TraceCheckUtils]: 0: Hoare triple {125#true} call ULTIMATE.init(); {125#true} is VALID [2020-07-10 15:27:25,309 INFO L280 TraceCheckUtils]: 1: Hoare triple {125#true} assume true; {125#true} is VALID [2020-07-10 15:27:25,310 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {125#true} {125#true} #45#return; {125#true} is VALID [2020-07-10 15:27:25,310 INFO L263 TraceCheckUtils]: 3: Hoare triple {125#true} call #t~ret2 := main(); {125#true} is VALID [2020-07-10 15:27:25,312 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 [2020-07-10 15:27:25,314 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 [2020-07-10 15:27:25,315 INFO L280 TraceCheckUtils]: 6: Hoare triple {129#(= 0 main_~x~0)} assume !false; {129#(= 0 main_~x~0)} is VALID [2020-07-10 15:27:25,318 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 [2020-07-10 15:27:25,320 INFO L280 TraceCheckUtils]: 8: Hoare triple {130#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {131#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:27:25,321 INFO L280 TraceCheckUtils]: 9: Hoare triple {131#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {126#false} is VALID [2020-07-10 15:27:25,322 INFO L280 TraceCheckUtils]: 10: Hoare triple {126#false} assume !false; {126#false} is VALID [2020-07-10 15:27:25,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:27:25,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508571047] [2020-07-10 15:27:25,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:25,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:27:25,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99136400] [2020-07-10 15:27:25,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:27:25,328 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:25,328 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:27:25,348 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:25,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:27:25,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:25,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:27:25,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:27:25,350 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-07-10 15:27:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:25,470 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 15:27:25,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 15:27:25,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:27:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:25,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:27:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-10 15:27:25,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:27:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-10 15:27:25,482 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 15 transitions. [2020-07-10 15:27:25,518 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:25,519 INFO L225 Difference]: With dead ends: 15 [2020-07-10 15:27:25,519 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:27:25,521 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 [2020-07-10 15:27:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:27:25,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:27:25,523 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:25,523 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:27:25,523 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:27:25,524 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:27:25,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:25,524 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:27:25,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:27:25,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:25,525 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:25,526 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:27:25,527 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:27:25,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:25,528 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:27:25,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:27:25,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:25,528 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:25,529 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:25,529 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:25,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:27:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:27:25,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-07-10 15:27:25,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:25,531 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:27:25,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:27:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:27:25,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:25,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:27:25,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:27:25,609 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 15:27:25,609 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:27:25,609 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:27:25,610 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:27:25,610 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:27:25,610 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:27:25,612 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-10 15:27:25,612 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-10 15:27:25,612 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-10 15:27:25,612 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-10 15:27:25,612 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2020-07-10 15:27:25,613 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 26) no Hoare annotation was computed. [2020-07-10 15:27:25,613 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= 0 main_~x~0) [2020-07-10 15:27:25,613 INFO L268 CegarLoopResult]: For program point L23-1(lines 21 24) no Hoare annotation was computed. [2020-07-10 15:27:25,613 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-07-10 15:27:25,614 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 24) the Hoare annotation is: (= 0 main_~x~0) [2020-07-10 15:27:25,614 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 24) the Hoare annotation is: false [2020-07-10 15:27:25,614 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 26) no Hoare annotation was computed. [2020-07-10 15:27:25,614 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-07-10 15:27:25,615 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 7 12) no Hoare annotation was computed. [2020-07-10 15:27:25,615 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-07-10 15:27:25,615 INFO L268 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-07-10 15:27:25,615 INFO L268 CegarLoopResult]: For program point L8-2(lines 7 12) no Hoare annotation was computed. [2020-07-10 15:27:25,615 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-07-10 15:27:25,620 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:27:25,621 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:27:25,621 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 15:27:25,621 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:27:25,622 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:27:25,622 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:27:25,623 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:27:25,623 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:27:25,623 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 15:27:25,623 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 15:27:25,623 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:27:25,623 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:27:25,624 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:27:25,624 WARN L170 areAnnotationChecker]: L5-2 has no Hoare annotation [2020-07-10 15:27:25,624 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:27:25,626 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:27:25,627 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:27:25,627 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-10 15:27:25,627 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:27:25,627 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:27:25,628 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:27:25,628 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:27:25,628 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:27:25,628 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:27:25,629 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. [2020-07-10 15:27:25,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:27:25 BoogieIcfgContainer [2020-07-10 15:27:25,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:27:25,654 INFO L168 Benchmark]: Toolchain (without parser) took 2214.01 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 91.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:25,656 INFO L168 Benchmark]: CDTParser took 1.84 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-10 15:27:25,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.01 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 91.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:25,671 INFO L168 Benchmark]: Boogie Preprocessor took 126.76 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 91.7 MB in the beginning and 181.6 MB in the end (delta: -89.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:25,672 INFO L168 Benchmark]: RCFGBuilder took 426.86 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 165.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:25,673 INFO L168 Benchmark]: TraceAbstraction took 1337.18 ms. Allocated memory is still 202.9 MB. Free memory was 164.4 MB in the beginning and 91.0 MB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:25,677 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 1.84 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.01 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 91.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.76 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 91.7 MB in the beginning and 181.6 MB in the end (delta: -89.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.86 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 165.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1337.18 ms. Allocated memory is still 202.9 MB. Free memory was 164.4 MB in the beginning and 91.0 MB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 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: 1.1s, 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...