/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench/mannadiv.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:14:59,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:14:59,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:14:59,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:14:59,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:14:59,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:14:59,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:14:59,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:14:59,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:14:59,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:14:59,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:14:59,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:14:59,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:14:59,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:14:59,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:14:59,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:14:59,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:14:59,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:14:59,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:14:59,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:14:59,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:14:59,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:14:59,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:14:59,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:14:59,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 17:14:59,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:14:59,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:14:59,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:14:59,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 17:14:59,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:14:59,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:14:59,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:14:59,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:14:59,703 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:14:59,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:14:59,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:14:59,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:14:59,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:14:59,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:14:59,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:14:59,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:14:59,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:14:59,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:14:59,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:14:59,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:14:59,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:14:59,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:14:59,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:14:59,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:14:59,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:14:59,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:14:59,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:14:59,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:14:59,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:14:59,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:15:00,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:15:00,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:15:00,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:15:00,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:15:00,139 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:15:00,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/mannadiv.c [2021-01-06 17:15:00,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9ad70b88f/02a7b163dfe343e7a92e0efcdbc04ada/FLAG7f4925c1e [2021-01-06 17:15:00,761 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:15:00,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/mannadiv.c [2021-01-06 17:15:00,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9ad70b88f/02a7b163dfe343e7a92e0efcdbc04ada/FLAG7f4925c1e [2021-01-06 17:15:01,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9ad70b88f/02a7b163dfe343e7a92e0efcdbc04ada [2021-01-06 17:15:01,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:15:01,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:15:01,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:15:01,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:15:01,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:15:01,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4029a8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01, skipping insertion in model container [2021-01-06 17:15:01,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:15:01,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 17:15:01,430 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/mannadiv.c[573,586] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] left hand side expression in assignment: lhs: VariableLHS[~x2~0,] left hand side expression in assignment: lhs: VariableLHS[~y1~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] left hand side expression in assignment: lhs: VariableLHS[~y1~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] [2021-01-06 17:15:01,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:15:01,477 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 17:15:01,497 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/mannadiv.c[573,586] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] left hand side expression in assignment: lhs: VariableLHS[~x2~0,] left hand side expression in assignment: lhs: VariableLHS[~y1~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] left hand side expression in assignment: lhs: VariableLHS[~y1~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] [2021-01-06 17:15:01,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:15:01,541 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:15:01,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01 WrapperNode [2021-01-06 17:15:01,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:15:01,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:15:01,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:15:01,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:15:01,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:15:01,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:15:01,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:15:01,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:15:01,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... [2021-01-06 17:15:01,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:15:01,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:15:01,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:15:01,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:15:01,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:15:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:15:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:15:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:15:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:15:02,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:15:02,161 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-01-06 17:15:02,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:15:02 BoogieIcfgContainer [2021-01-06 17:15:02,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:15:02,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:15:02,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:15:02,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:15:02,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:15:01" (1/3) ... [2021-01-06 17:15:02,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2830abea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:15:02, skipping insertion in model container [2021-01-06 17:15:02,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:15:01" (2/3) ... [2021-01-06 17:15:02,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2830abea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:15:02, skipping insertion in model container [2021-01-06 17:15:02,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:15:02" (3/3) ... [2021-01-06 17:15:02,174 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv.c [2021-01-06 17:15:02,181 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:15:02,187 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-06 17:15:02,229 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-06 17:15:02,306 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:15:02,306 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:15:02,306 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:15:02,307 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:15:02,307 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:15:02,307 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:15:02,307 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:15:02,307 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:15:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-01-06 17:15:02,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 17:15:02,341 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:15:02,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:15:02,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:15:02,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:15:02,351 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2021-01-06 17:15:02,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:15:02,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262081053] [2021-01-06 17:15:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:15:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:15:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:15:02,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262081053] [2021-01-06 17:15:02,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:15:02,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 17:15:02,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650475949] [2021-01-06 17:15:02,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 17:15:02,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:15:02,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 17:15:02,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:15:02,562 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2021-01-06 17:15:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:15:02,583 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-01-06 17:15:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 17:15:02,585 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-01-06 17:15:02,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:15:02,594 INFO L225 Difference]: With dead ends: 37 [2021-01-06 17:15:02,595 INFO L226 Difference]: Without dead ends: 16 [2021-01-06 17:15:02,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:15:02,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-01-06 17:15:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-01-06 17:15:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-01-06 17:15:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-01-06 17:15:02,636 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2021-01-06 17:15:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:15:02,636 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-01-06 17:15:02,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 17:15:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-01-06 17:15:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 17:15:02,637 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:15:02,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:15:02,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 17:15:02,638 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:15:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:15:02,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2021-01-06 17:15:02,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:15:02,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951358300] [2021-01-06 17:15:02,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:15:02,661 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:15:02,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420954684] [2021-01-06 17:15:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:15:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:15:02,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 22 conjunts are in the unsatisfiable core [2021-01-06 17:15:02,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:15:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:15:02,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951358300] [2021-01-06 17:15:02,933 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:15:02,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420954684] [2021-01-06 17:15:02,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:15:02,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 17:15:02,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141479380] [2021-01-06 17:15:02,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:15:02,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:15:02,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:15:02,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:15:02,938 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 8 states. [2021-01-06 17:15:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:15:03,320 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-01-06 17:15:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 17:15:03,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2021-01-06 17:15:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:15:03,321 INFO L225 Difference]: With dead ends: 27 [2021-01-06 17:15:03,322 INFO L226 Difference]: Without dead ends: 25 [2021-01-06 17:15:03,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-01-06 17:15:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-01-06 17:15:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2021-01-06 17:15:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-01-06 17:15:03,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-01-06 17:15:03,329 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2021-01-06 17:15:03,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:15:03,330 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-01-06 17:15:03,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:15:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-01-06 17:15:03,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 17:15:03,331 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:15:03,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:15:03,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 17:15:03,545 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:15:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:15:03,547 INFO L82 PathProgramCache]: Analyzing trace with hash 636930749, now seen corresponding path program 1 times [2021-01-06 17:15:03,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:15:03,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819956545] [2021-01-06 17:15:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:15:03,565 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:15:03,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82518684] [2021-01-06 17:15:03,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:15:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:15:03,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-01-06 17:15:03,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:15:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:15:03,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819956545] [2021-01-06 17:15:03,887 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:15:03,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82518684] [2021-01-06 17:15:03,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:15:03,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 17:15:03,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838726634] [2021-01-06 17:15:03,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:15:03,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:15:03,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:15:03,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:15:03,896 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 9 states. [2021-01-06 17:15:04,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:15:04,126 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-01-06 17:15:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 17:15:04,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2021-01-06 17:15:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:15:04,129 INFO L225 Difference]: With dead ends: 18 [2021-01-06 17:15:04,129 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 17:15:04,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-01-06 17:15:04,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 17:15:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 17:15:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 17:15:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 17:15:04,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-01-06 17:15:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:15:04,135 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 17:15:04,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:15:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 17:15:04,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 17:15:04,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:15:04,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 17:15:04,475 INFO L189 CegarLoopUtils]: For program point L35-2(lines 35 48) no Hoare annotation was computed. [2021-01-06 17:15:04,475 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-01-06 17:15:04,475 INFO L189 CegarLoopUtils]: For program point L40(lines 40 47) no Hoare annotation was computed. [2021-01-06 17:15:04,476 INFO L185 CegarLoopUtils]: At program point L40-2(lines 35 48) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_main_~x2~0 0))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~x1~0)) (.cse3 (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 .cse2 .cse3 (<= ULTIMATE.start_main_~y3~0 ULTIMATE.start_main_~x1~0)) (and .cse0 (= ULTIMATE.start_main_~x1~0 ULTIMATE.start_main_~y3~0) .cse1 .cse2 (= ULTIMATE.start_main_~y2~0 0) .cse3))) [2021-01-06 17:15:04,476 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 17:15:04,476 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 17:15:04,476 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 17:15:04,477 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-01-06 17:15:04,477 INFO L189 CegarLoopUtils]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-01-06 17:15:04,477 INFO L185 CegarLoopUtils]: At program point L16-2(line 38) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~x2~0 0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~x1~0) (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))) (<= ULTIMATE.start_main_~y3~0 ULTIMATE.start_main_~x1~0)) [2021-01-06 17:15:04,477 INFO L189 CegarLoopUtils]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-01-06 17:15:04,477 INFO L189 CegarLoopUtils]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-01-06 17:15:04,477 INFO L189 CegarLoopUtils]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2021-01-06 17:15:04,477 INFO L192 CegarLoopUtils]: At program point L16-5(lines 15 21) the Hoare annotation is: true [2021-01-06 17:15:04,478 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 17:15:04,478 INFO L192 CegarLoopUtils]: At program point L50(lines 22 51) the Hoare annotation is: true [2021-01-06 17:15:04,478 INFO L189 CegarLoopUtils]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-01-06 17:15:04,478 INFO L189 CegarLoopUtils]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-01-06 17:15:04,478 INFO L189 CegarLoopUtils]: For program point L13(line 13) no Hoare annotation was computed. [2021-01-06 17:15:04,478 INFO L189 CegarLoopUtils]: For program point L13-2(line 13) no Hoare annotation was computed. [2021-01-06 17:15:04,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:15:04 BoogieIcfgContainer [2021-01-06 17:15:04,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:15:04,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:15:04,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:15:04,500 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:15:04,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:15:02" (3/4) ... [2021-01-06 17:15:04,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 17:15:04,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-01-06 17:15:04,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 17:15:04,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 17:15:04,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 17:15:04,570 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench/mannadiv.c-witness.graphml [2021-01-06 17:15:04,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:15:04,572 INFO L168 Benchmark]: Toolchain (without parser) took 3441.67 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 131.0 MB in the beginning and 124.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,573 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:15:04,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.41 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 121.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.25 ms. Allocated memory is still 156.2 MB. Free memory was 121.0 MB in the beginning and 119.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,575 INFO L168 Benchmark]: Boogie Preprocessor took 56.06 ms. Allocated memory is still 156.2 MB. Free memory was 119.5 MB in the beginning and 118.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,576 INFO L168 Benchmark]: RCFGBuilder took 497.75 ms. Allocated memory is still 156.2 MB. Free memory was 118.5 MB in the beginning and 105.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,576 INFO L168 Benchmark]: TraceAbstraction took 2334.34 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 105.0 MB in the beginning and 127.3 MB in the end (delta: -22.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,577 INFO L168 Benchmark]: Witness Printer took 69.86 ms. Allocated memory is still 187.7 MB. Free memory was 127.3 MB in the beginning and 124.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:15:04,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 410.41 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 121.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.25 ms. Allocated memory is still 156.2 MB. Free memory was 121.0 MB in the beginning and 119.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.06 ms. Allocated memory is still 156.2 MB. Free memory was 119.5 MB in the beginning and 118.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 497.75 ms. Allocated memory is still 156.2 MB. Free memory was 118.5 MB in the beginning and 105.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2334.34 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 105.0 MB in the beginning and 127.3 MB in the end (delta: -22.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. * Witness Printer took 69.86 ms. Allocated memory is still 187.7 MB. Free memory was 127.3 MB in the beginning and 124.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((!(x2 == 0) && 1 == cond) && cond == 1) && 0 <= x1) && x1 == y2 + y3 + y1 * x2) && y3 <= x1) || (((((!(x2 == 0) && x1 == y3) && cond == 1) && 0 <= x1) && y2 == 0) && x1 == y2 + y3 + y1 * x2) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((!(x2 == 0) && 1 == cond) && cond == 1) && 0 <= x1) && x1 == y2 + y3 + y1 * x2) && y3 <= x1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 85 SDslu, 27 SDs, 0 SdLazy, 76 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 78 HoareAnnotationTreeSize, 4 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1653 SizeOfPredicates, 20 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...