/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/ldv-regression/test_while_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:30:47,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:30:47,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:30:47,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-17 22:30:47,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:30:47,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:30:47,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:30:47,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:30:47,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:30:47,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:30:47,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:30:47,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:30:47,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:30:47,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:30:47,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:30:47,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:30:47,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:30:47,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:30:47,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:30:47,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:30:47,614 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 22:30:47,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:30:47,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:30:47,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:30:47,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:30:47,653 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:30:47,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:30:47,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:30:47,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:30:47,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:30:47,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:30:47,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:30:47,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:30:47,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:30:47,657 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:30:47,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:30:47,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:30:47,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:30:47,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:30:47,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:30:47,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:30:47,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:30:47,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:30:47,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:30:47,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:30:47,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:30:47,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:30:47,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:30:47,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:30:47,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:30:47,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:30:47,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:30:47,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:30:47,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:30:47,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:30:47,971 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:30:47,972 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-07-17 22:30:48,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759836c64/096c92487a04433aad95a9645287b73e/FLAG7cc176518 [2020-07-17 22:30:48,546 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:30:48,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-07-17 22:30:48,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759836c64/096c92487a04433aad95a9645287b73e/FLAG7cc176518 [2020-07-17 22:30:48,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759836c64/096c92487a04433aad95a9645287b73e [2020-07-17 22:30:48,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:30:48,986 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:30:48,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:30:48,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:30:48,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:30:48,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:30:48" (1/1) ... [2020-07-17 22:30:48,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10fc4017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:48, skipping insertion in model container [2020-07-17 22:30:48,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:30:48" (1/1) ... [2020-07-17 22:30:49,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:30:49,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:30:49,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:30:49,186 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:30:49,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:30:49,221 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:30:49,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49 WrapperNode [2020-07-17 22:30:49,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:30:49,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:30:49,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:30:49,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:30:49,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (1/1) ... [2020-07-17 22:30:49,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:30:49,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:30:49,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:30:49,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:30:49,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (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 22:30:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:30:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:30:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-17 22:30:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:30:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:30:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-17 22:30:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:30:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:30:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:30:49,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:30:49,827 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 22:30:49,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:30:49 BoogieIcfgContainer [2020-07-17 22:30:49,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:30:49,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:30:49,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:30:49,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:30:49,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:30:48" (1/3) ... [2020-07-17 22:30:49,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8853791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:30:49, skipping insertion in model container [2020-07-17 22:30:49,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:49" (2/3) ... [2020-07-17 22:30:49,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8853791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:30:49, skipping insertion in model container [2020-07-17 22:30:49,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:30:49" (3/3) ... [2020-07-17 22:30:49,844 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2020-07-17 22:30:49,854 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:30:49,861 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:30:49,875 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:30:49,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:30:49,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:30:49,900 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:30:49,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:30:49,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:30:49,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:30:49,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:30:49,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:30:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-17 22:30:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-17 22:30:49,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:49,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:49,930 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:49,937 INFO L82 PathProgramCache]: Analyzing trace with hash 676687463, now seen corresponding path program 1 times [2020-07-17 22:30:49,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:49,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929677320] [2020-07-17 22:30:49,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:50,141 INFO L280 TraceCheckUtils]: 0: Hoare triple {20#true} assume true; {20#true} is VALID [2020-07-17 22:30:50,142 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20#true} {20#true} #30#return; {20#true} is VALID [2020-07-17 22:30:50,144 INFO L263 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {20#true} is VALID [2020-07-17 22:30:50,145 INFO L280 TraceCheckUtils]: 1: Hoare triple {20#true} assume true; {20#true} is VALID [2020-07-17 22:30:50,145 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20#true} {20#true} #30#return; {20#true} is VALID [2020-07-17 22:30:50,146 INFO L263 TraceCheckUtils]: 3: Hoare triple {20#true} call #t~ret1 := main(); {20#true} is VALID [2020-07-17 22:30:50,147 INFO L280 TraceCheckUtils]: 4: Hoare triple {20#true} ~i~0 := 0; {24#(<= main_~i~0 0)} is VALID [2020-07-17 22:30:50,149 INFO L280 TraceCheckUtils]: 5: Hoare triple {24#(<= main_~i~0 0)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {25#(<= main_~i~0 1)} is VALID [2020-07-17 22:30:50,151 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#(<= main_~i~0 1)} assume !(3 != ~i~0); {21#false} is VALID [2020-07-17 22:30:50,151 INFO L263 TraceCheckUtils]: 7: Hoare triple {21#false} call __blast_assert(); {21#false} is VALID [2020-07-17 22:30:50,152 INFO L280 TraceCheckUtils]: 8: Hoare triple {21#false} assume !false; {21#false} is VALID [2020-07-17 22:30:50,153 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 22:30:50,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929677320] [2020-07-17 22:30:50,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:30:50,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:30:50,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898843440] [2020-07-17 22:30:50,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-17 22:30:50,165 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:30:50,169 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:30:50,203 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:50,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:30:50,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:30:50,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:30:50,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:30:50,213 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2020-07-17 22:30:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:50,344 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2020-07-17 22:30:50,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:30:50,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-17 22:30:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:30:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:30:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2020-07-17 22:30:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:30:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2020-07-17 22:30:50,360 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 40 transitions. [2020-07-17 22:30:50,438 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 22:30:50,450 INFO L225 Difference]: With dead ends: 30 [2020-07-17 22:30:50,450 INFO L226 Difference]: Without dead ends: 13 [2020-07-17 22:30:50,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:30:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-07-17 22:30:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-17 22:30:50,599 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:30:50,599 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2020-07-17 22:30:50,600 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2020-07-17 22:30:50,600 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2020-07-17 22:30:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:50,603 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-17 22:30:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-17 22:30:50,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:50,605 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:50,605 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2020-07-17 22:30:50,605 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2020-07-17 22:30:50,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:50,609 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-17 22:30:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-17 22:30:50,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:50,610 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:50,610 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:30:50,610 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:30:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:30:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-17 22:30:50,614 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2020-07-17 22:30:50,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:30:50,615 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-17 22:30:50,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:30:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-17 22:30:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:30:50,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:50,616 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:50,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:30:50,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1754257002, now seen corresponding path program 1 times [2020-07-17 22:30:50,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:50,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657378893] [2020-07-17 22:30:50,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:50,688 INFO L280 TraceCheckUtils]: 0: Hoare triple {116#true} assume true; {116#true} is VALID [2020-07-17 22:30:50,689 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {116#true} {116#true} #30#return; {116#true} is VALID [2020-07-17 22:30:50,689 INFO L263 TraceCheckUtils]: 0: Hoare triple {116#true} call ULTIMATE.init(); {116#true} is VALID [2020-07-17 22:30:50,689 INFO L280 TraceCheckUtils]: 1: Hoare triple {116#true} assume true; {116#true} is VALID [2020-07-17 22:30:50,690 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {116#true} {116#true} #30#return; {116#true} is VALID [2020-07-17 22:30:50,690 INFO L263 TraceCheckUtils]: 3: Hoare triple {116#true} call #t~ret1 := main(); {116#true} is VALID [2020-07-17 22:30:50,691 INFO L280 TraceCheckUtils]: 4: Hoare triple {116#true} ~i~0 := 0; {120#(<= main_~i~0 0)} is VALID [2020-07-17 22:30:50,693 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#(<= main_~i~0 0)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {121#(<= main_~i~0 1)} is VALID [2020-07-17 22:30:50,694 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#(<= main_~i~0 1)} assume 3 != ~i~0; {121#(<= main_~i~0 1)} is VALID [2020-07-17 22:30:50,696 INFO L280 TraceCheckUtils]: 7: Hoare triple {121#(<= main_~i~0 1)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {122#(<= main_~i~0 2)} is VALID [2020-07-17 22:30:50,697 INFO L280 TraceCheckUtils]: 8: Hoare triple {122#(<= main_~i~0 2)} assume !(3 != ~i~0); {117#false} is VALID [2020-07-17 22:30:50,697 INFO L263 TraceCheckUtils]: 9: Hoare triple {117#false} call __blast_assert(); {117#false} is VALID [2020-07-17 22:30:50,698 INFO L280 TraceCheckUtils]: 10: Hoare triple {117#false} assume !false; {117#false} is VALID [2020-07-17 22:30:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:30:50,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657378893] [2020-07-17 22:30:50,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850331596] [2020-07-17 22:30:50,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:30:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:50,729 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 22:30:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:50,743 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:30:50,817 INFO L263 TraceCheckUtils]: 0: Hoare triple {116#true} call ULTIMATE.init(); {116#true} is VALID [2020-07-17 22:30:50,818 INFO L280 TraceCheckUtils]: 1: Hoare triple {116#true} assume true; {116#true} is VALID [2020-07-17 22:30:50,818 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {116#true} {116#true} #30#return; {116#true} is VALID [2020-07-17 22:30:50,819 INFO L263 TraceCheckUtils]: 3: Hoare triple {116#true} call #t~ret1 := main(); {116#true} is VALID [2020-07-17 22:30:50,820 INFO L280 TraceCheckUtils]: 4: Hoare triple {116#true} ~i~0 := 0; {120#(<= main_~i~0 0)} is VALID [2020-07-17 22:30:50,822 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#(<= main_~i~0 0)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {121#(<= main_~i~0 1)} is VALID [2020-07-17 22:30:50,823 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#(<= main_~i~0 1)} assume 3 != ~i~0; {121#(<= main_~i~0 1)} is VALID [2020-07-17 22:30:50,824 INFO L280 TraceCheckUtils]: 7: Hoare triple {121#(<= main_~i~0 1)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {122#(<= main_~i~0 2)} is VALID [2020-07-17 22:30:50,826 INFO L280 TraceCheckUtils]: 8: Hoare triple {122#(<= main_~i~0 2)} assume !(3 != ~i~0); {117#false} is VALID [2020-07-17 22:30:50,826 INFO L263 TraceCheckUtils]: 9: Hoare triple {117#false} call __blast_assert(); {117#false} is VALID [2020-07-17 22:30:50,827 INFO L280 TraceCheckUtils]: 10: Hoare triple {117#false} assume !false; {117#false} is VALID [2020-07-17 22:30:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:30:50,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:30:50,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-17 22:30:50,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406102439] [2020-07-17 22:30:50,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-17 22:30:50,831 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:30:50,831 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:30:50,850 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 22:30:50,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:30:50,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:30:50,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:30:50,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:30:50,852 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2020-07-17 22:30:50,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:50,927 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-07-17 22:30:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:30:50,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-17 22:30:50,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:30:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:30:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-17 22:30:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:30:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-17 22:30:50,933 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 18 transitions. [2020-07-17 22:30:50,978 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:50,980 INFO L225 Difference]: With dead ends: 18 [2020-07-17 22:30:50,980 INFO L226 Difference]: Without dead ends: 15 [2020-07-17 22:30:50,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:30:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-17 22:30:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-07-17 22:30:50,991 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:30:50,992 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2020-07-17 22:30:50,992 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2020-07-17 22:30:50,992 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2020-07-17 22:30:50,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:50,994 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-17 22:30:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-17 22:30:50,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:50,995 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:50,995 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2020-07-17 22:30:50,995 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2020-07-17 22:30:50,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:50,997 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-17 22:30:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-17 22:30:50,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:50,998 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:50,998 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:30:50,998 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:30:50,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-17 22:30:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-07-17 22:30:51,000 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-07-17 22:30:51,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:30:51,001 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-07-17 22:30:51,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:30:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-07-17 22:30:51,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 22:30:51,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:51,002 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:51,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-17 22:30:51,217 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:51,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2083501651, now seen corresponding path program 2 times [2020-07-17 22:30:51,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:51,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632098402] [2020-07-17 22:30:51,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:30:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:30:51,252 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:30:51,252 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:30:51,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 22:30:51,272 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:30:51,272 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:30:51,272 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:30:51,273 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-17 22:30:51,274 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-17 22:30:51,275 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-17 22:30:51,275 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:30:51,275 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-17 22:30:51,275 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-17 22:30:51,275 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:30:51,275 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:30:51,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:30:51 BoogieIcfgContainer [2020-07-17 22:30:51,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:30:51,281 INFO L168 Benchmark]: Toolchain (without parser) took 2295.98 ms. Allocated memory was 146.3 MB in the beginning and 233.3 MB in the end (delta: 87.0 MB). Free memory was 103.9 MB in the beginning and 192.9 MB in the end (delta: -88.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:30:51,282 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:30:51,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.38 ms. Allocated memory is still 146.3 MB. Free memory was 103.5 MB in the beginning and 94.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:51,284 INFO L168 Benchmark]: Boogie Preprocessor took 152.95 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 94.4 MB in the beginning and 185.3 MB in the end (delta: -90.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:51,285 INFO L168 Benchmark]: RCFGBuilder took 454.58 ms. Allocated memory is still 205.5 MB. Free memory was 185.3 MB in the beginning and 171.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:51,286 INFO L168 Benchmark]: TraceAbstraction took 1440.20 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 170.2 MB in the beginning and 192.9 MB in the end (delta: -22.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:51,290 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 0.22 ms. Allocated memory is still 146.3 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.38 ms. Allocated memory is still 146.3 MB. Free memory was 103.5 MB in the beginning and 94.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.95 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 94.4 MB in the beginning and 185.3 MB in the end (delta: -90.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.58 ms. Allocated memory is still 205.5 MB. Free memory was 185.3 MB in the beginning and 171.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1440.20 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 170.2 MB in the beginning and 192.9 MB in the end (delta: -22.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int i=0; VAL [i=0] [L13] COND TRUE i<5 [L14] i++ VAL [i=1] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=1] [L13] COND TRUE i<5 [L14] i++ VAL [i=2] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=2] [L13] COND TRUE i<5 [L14] i++ VAL [i=3] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=3] [L16] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 38 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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 incorrect! Received shutdown request...