/usr/bin/java -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/loop-industry-pattern/mod3.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:58:17,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:58:17,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:58:17,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:58:17,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:58:17,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:58:17,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:58:17,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:58:17,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:58:17,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:58:17,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:58:17,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:58:17,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:58:17,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:58:17,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:58:17,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:58:17,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:58:17,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:58:17,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:58:17,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:58:17,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:58:17,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:58:17,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:58:17,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:58:17,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:58:17,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:58:17,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:58:17,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:58:17,162 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 [2020-08-22 16:58:17,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:58:17,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:58:17,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:58:17,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:58:17,219 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:58:17,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:58:17,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:58:17,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:58:17,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:58:17,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:58:17,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:58:17,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:58:17,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:58:17,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:58:17,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:58:17,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:58:17,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:58:17,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:58:17,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:58:17,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:58:17,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:58:17,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:58:17,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:58:17,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:58:17,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:58:17,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:58:17,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:58:17,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:58:17,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:58:17,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:58:17,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:58:17,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:58:17,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:58:17,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:58:17,557 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:58:17,558 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c [2020-08-22 16:58:17,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7144cc271/ac824476e7ea422c9b1957d3f6f495c2/FLAGf9d4975aa [2020-08-22 16:58:18,125 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:58:18,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c [2020-08-22 16:58:18,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7144cc271/ac824476e7ea422c9b1957d3f6f495c2/FLAGf9d4975aa [2020-08-22 16:58:18,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7144cc271/ac824476e7ea422c9b1957d3f6f495c2 [2020-08-22 16:58:18,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:58:18,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:58:18,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:58:18,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:58:18,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:58:18,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4501bda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18, skipping insertion in model container [2020-08-22 16:58:18,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:58:18,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:58:18,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:58:18,722 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:58:18,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:58:18,849 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:58:18,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18 WrapperNode [2020-08-22 16:58:18,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:58:18,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:58:18,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:58:18,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:58:18,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (1/1) ... [2020-08-22 16:58:18,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:58:18,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:58:18,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:58:18,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:58:18,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (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 [2020-08-22 16:58:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:58:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:58:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:58:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:58:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:58:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 16:58:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:58:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:58:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:58:19,224 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:58:19,224 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 16:58:19,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:58:19 BoogieIcfgContainer [2020-08-22 16:58:19,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:58:19,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:58:19,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:58:19,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:58:19,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:58:18" (1/3) ... [2020-08-22 16:58:19,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91e1726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:58:19, skipping insertion in model container [2020-08-22 16:58:19,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:58:18" (2/3) ... [2020-08-22 16:58:19,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91e1726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:58:19, skipping insertion in model container [2020-08-22 16:58:19,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:58:19" (3/3) ... [2020-08-22 16:58:19,236 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2020-08-22 16:58:19,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:58:19,264 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:58:19,300 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:58:19,348 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:58:19,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:58:19,348 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:58:19,348 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:58:19,348 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:58:19,349 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:58:19,349 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:58:19,349 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:58:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-08-22 16:58:19,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-22 16:58:19,370 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:58:19,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:58:19,371 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:58:19,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:58:19,376 INFO L82 PathProgramCache]: Analyzing trace with hash 453243256, now seen corresponding path program 1 times [2020-08-22 16:58:19,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:58:19,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121149951] [2020-08-22 16:58:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:58:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:58:19,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:58:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:58:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:58:19,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121149951] [2020-08-22 16:58:19,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:58:19,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:58:19,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642555516] [2020-08-22 16:58:19,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:58:19,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:58:19,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:58:19,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:58:19,872 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2020-08-22 16:58:28,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:58:28,483 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-08-22 16:58:28,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:58:28,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-08-22 16:58:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:58:28,497 INFO L225 Difference]: With dead ends: 71 [2020-08-22 16:58:28,498 INFO L226 Difference]: Without dead ends: 35 [2020-08-22 16:58:28,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:58:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-08-22 16:58:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-08-22 16:58:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-08-22 16:58:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2020-08-22 16:58:28,538 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 15 [2020-08-22 16:58:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:58:28,538 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2020-08-22 16:58:28,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:58:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2020-08-22 16:58:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 16:58:28,539 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:58:28,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:58:28,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:58:28,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:58:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:58:28,541 INFO L82 PathProgramCache]: Analyzing trace with hash -386324053, now seen corresponding path program 1 times [2020-08-22 16:58:28,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:58:28,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74771636] [2020-08-22 16:58:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:58:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:58:28,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:58:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:58:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:58:28,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74771636] [2020-08-22 16:58:28,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:58:28,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:58:28,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116015377] [2020-08-22 16:58:28,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:58:28,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:58:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:58:28,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:58:28,832 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand 5 states. [2020-08-22 16:58:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:58:37,380 INFO L93 Difference]: Finished difference Result 55 states and 72 transitions. [2020-08-22 16:58:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:58:37,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-22 16:58:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:58:37,382 INFO L225 Difference]: With dead ends: 55 [2020-08-22 16:58:37,382 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:58:37,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:58:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:58:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:58:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:58:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:58:37,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-08-22 16:58:37,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:58:37,385 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:58:37,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:58:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:58:37,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:58:37,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:58:37,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:58:37,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:58:37,509 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_22_0~0 |old(~__tmp_22_0~0)|) (= ~__tmp_22_1~0 |old(~__tmp_22_1~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_65~0 |old(~__return_65~0)|) (= ~__tmp_25_1~0 |old(~__tmp_25_1~0)|) (= ~__tmp_31_0~0 |old(~__tmp_31_0~0)|) (= ~__tmp_28_0~0 |old(~__tmp_28_0~0)|) (= ~__tmp_25_0~0 |old(~__tmp_25_0~0)|)) [2020-08-22 16:58:37,509 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:58:37,509 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:58:37,509 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 16:58:37,509 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:58:37,510 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:58:37,510 INFO L268 CegarLoopResult]: For program point L93(lines 93 102) no Hoare annotation was computed. [2020-08-22 16:58:37,510 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 145) no Hoare annotation was computed. [2020-08-22 16:58:37,510 INFO L264 CegarLoopResult]: At program point L40(lines 22 139) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296))))))) [2020-08-22 16:58:37,510 INFO L268 CegarLoopResult]: For program point L65(lines 65 80) no Hoare annotation was computed. [2020-08-22 16:58:37,511 INFO L268 CegarLoopResult]: For program point L86(lines 86 108) no Hoare annotation was computed. [2020-08-22 16:58:37,511 INFO L268 CegarLoopResult]: For program point L20(lines 20 144) no Hoare annotation was computed. [2020-08-22 16:58:37,511 INFO L268 CegarLoopResult]: For program point L115(lines 115 137) no Hoare annotation was computed. [2020-08-22 16:58:37,511 INFO L268 CegarLoopResult]: For program point L45(lines 45 82) no Hoare annotation was computed. [2020-08-22 16:58:37,511 INFO L271 CegarLoopResult]: At program point L136(lines 14 145) the Hoare annotation is: true [2020-08-22 16:58:37,511 INFO L268 CegarLoopResult]: For program point L33(lines 33 138) no Hoare annotation was computed. [2020-08-22 16:58:37,512 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-08-22 16:58:37,512 INFO L268 CegarLoopResult]: For program point L54(lines 54 81) no Hoare annotation was computed. [2020-08-22 16:58:37,512 INFO L264 CegarLoopResult]: At program point L50(lines 22 139) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296))))))) [2020-08-22 16:58:37,512 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 145) no Hoare annotation was computed. [2020-08-22 16:58:37,512 INFO L271 CegarLoopResult]: At program point L133(lines 33 138) the Hoare annotation is: true [2020-08-22 16:58:37,513 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-08-22 16:58:37,513 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 145) the Hoare annotation is: (and (= |old(~__tmp_22_1~0)| ~__tmp_22_1~0) (= |old(~__tmp_22_0~0)| ~__tmp_22_0~0) (= |old(~__return_65~0)| ~__return_65~0) (= |old(~__tmp_25_1~0)| ~__tmp_25_1~0) (= |old(~__tmp_25_0~0)| ~__tmp_25_0~0) (= |old(~__tmp_31_0~0)| ~__tmp_31_0~0) (= |old(~__tmp_28_0~0)| ~__tmp_28_0~0)) [2020-08-22 16:58:37,513 INFO L264 CegarLoopResult]: At program point L59(lines 34 110) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296))))))) [2020-08-22 16:58:37,513 INFO L271 CegarLoopResult]: At program point L121(lines 33 138) the Hoare annotation is: true [2020-08-22 16:58:37,514 INFO L268 CegarLoopResult]: For program point L22(lines 22 139) no Hoare annotation was computed. [2020-08-22 16:58:37,514 INFO L268 CegarLoopResult]: For program point L43(lines 43 109) no Hoare annotation was computed. [2020-08-22 16:58:37,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:58:37 BoogieIcfgContainer [2020-08-22 16:58:37,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:58:37,537 INFO L168 Benchmark]: Toolchain (without parser) took 19049.89 ms. Allocated memory was 143.1 MB in the beginning and 229.6 MB in the end (delta: 86.5 MB). Free memory was 106.4 MB in the beginning and 165.2 MB in the end (delta: -58.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:58:37,538 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:58:37,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.48 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 106.2 MB in the beginning and 183.6 MB in the end (delta: -77.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:58:37,540 INFO L168 Benchmark]: Boogie Preprocessor took 40.60 ms. Allocated memory is still 204.5 MB. Free memory was 183.6 MB in the beginning and 181.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:58:37,541 INFO L168 Benchmark]: RCFGBuilder took 337.00 ms. Allocated memory is still 204.5 MB. Free memory was 181.5 MB in the beginning and 165.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:58:37,542 INFO L168 Benchmark]: TraceAbstraction took 18303.99 ms. Allocated memory was 204.5 MB in the beginning and 229.6 MB in the end (delta: 25.2 MB). Free memory was 164.7 MB in the beginning and 165.2 MB in the end (delta: -562.9 kB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:58:37,546 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.48 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 106.2 MB in the beginning and 183.6 MB in the end (delta: -77.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.60 ms. Allocated memory is still 204.5 MB. Free memory was 183.6 MB in the beginning and 181.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.00 ms. Allocated memory is still 204.5 MB. Free memory was 181.5 MB in the beginning and 165.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18303.99 ms. Allocated memory was 204.5 MB in the beginning and 229.6 MB in the end (delta: 25.2 MB). Free memory was 164.7 MB in the beginning and 165.2 MB in the end (delta: -562.9 kB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: 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: 34]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 26 SDslu, 77 SDs, 0 SdLazy, 125 SolverSat, 7 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 16.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=1, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 175 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 5844 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...