/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:54:07,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:54:07,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:54:07,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:54:07,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:54:07,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:54:07,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:54:07,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:54:07,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:54:07,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:54:07,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:54:07,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:54:07,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:54:07,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:54:07,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:54:07,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:54:07,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:54:07,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:54:07,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:54:07,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:54:07,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:54:07,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:54:07,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:54:07,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:54:07,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:54:07,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:54:07,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:54:07,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:54:07,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 14:54:07,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:54:07,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:54:07,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:54:07,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:54:07,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:54:07,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:54:07,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:54:07,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:54:07,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:54:07,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:54:07,263 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:54:07,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:54:07,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:54:07,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:54:07,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:54:07,264 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:54:07,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:54:07,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:54:07,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:54:07,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:54:07,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:54:07,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:54:07,265 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:54:07,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:54:07,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:54:07,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:54:07,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:54:07,576 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:54:07,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c [2020-07-17 14:54:07,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/419827466/a7bc282beec143edb2e5aae261b5abc9/FLAGaae794994 [2020-07-17 14:54:08,106 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:54:08,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c [2020-07-17 14:54:08,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/419827466/a7bc282beec143edb2e5aae261b5abc9/FLAGaae794994 [2020-07-17 14:54:08,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/419827466/a7bc282beec143edb2e5aae261b5abc9 [2020-07-17 14:54:08,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:54:08,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:54:08,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:54:08,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:54:08,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:54:08,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f24f45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08, skipping insertion in model container [2020-07-17 14:54:08,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:54:08,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:54:08,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:54:08,731 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:54:08,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:54:08,772 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:54:08,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08 WrapperNode [2020-07-17 14:54:08,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:54:08,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:54:08,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:54:08,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:54:08,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (1/1) ... [2020-07-17 14:54:08,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:54:08,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:54:08,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:54:08,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:54:08,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (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 14:54:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:54:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:54:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 14:54:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 14:54:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-17 14:54:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:54:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:54:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:54:09,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:54:09,219 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:54:09,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:54:09 BoogieIcfgContainer [2020-07-17 14:54:09,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:54:09,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:54:09,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:54:09,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:54:09,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:54:08" (1/3) ... [2020-07-17 14:54:09,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a142775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:54:09, skipping insertion in model container [2020-07-17 14:54:09,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:08" (2/3) ... [2020-07-17 14:54:09,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a142775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:54:09, skipping insertion in model container [2020-07-17 14:54:09,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:54:09" (3/3) ... [2020-07-17 14:54:09,233 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2020-07-17 14:54:09,248 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:54:09,271 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:54:09,318 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:54:09,348 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:54:09,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:54:09,348 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:54:09,349 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:54:09,349 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:54:09,349 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:54:09,349 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:54:09,349 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:54:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-17 14:54:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 14:54:09,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:09,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:54:09,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:09,406 INFO L82 PathProgramCache]: Analyzing trace with hash 664980376, now seen corresponding path program 1 times [2020-07-17 14:54:09,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:09,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70409804] [2020-07-17 14:54:09,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:09,551 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 14:54:09,554 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:09,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70409804] [2020-07-17 14:54:09,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:09,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-17 14:54:09,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824031327] [2020-07-17 14:54:09,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-17 14:54:09,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:09,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-17 14:54:09,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 14:54:09,582 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-07-17 14:54:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:09,613 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-07-17 14:54:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-17 14:54:09,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-07-17 14:54:09,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:09,625 INFO L225 Difference]: With dead ends: 55 [2020-07-17 14:54:09,625 INFO L226 Difference]: Without dead ends: 32 [2020-07-17 14:54:09,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 14:54:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-17 14:54:09,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-07-17 14:54:09,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-17 14:54:09,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-07-17 14:54:09,674 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19 [2020-07-17 14:54:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:09,675 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-07-17 14:54:09,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-17 14:54:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-07-17 14:54:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 14:54:09,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:09,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:54:09,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:54:09,678 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:09,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:09,678 INFO L82 PathProgramCache]: Analyzing trace with hash 645586435, now seen corresponding path program 1 times [2020-07-17 14:54:09,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:09,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515327926] [2020-07-17 14:54:09,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:09,797 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 14:54:09,798 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:09,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515327926] [2020-07-17 14:54:09,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:09,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 14:54:09,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59443907] [2020-07-17 14:54:09,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 14:54:09,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:09,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 14:54:09,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 14:54:09,802 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2020-07-17 14:54:09,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:09,898 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-07-17 14:54:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 14:54:09,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-07-17 14:54:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:09,901 INFO L225 Difference]: With dead ends: 38 [2020-07-17 14:54:09,901 INFO L226 Difference]: Without dead ends: 33 [2020-07-17 14:54:09,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 14:54:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-17 14:54:09,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-17 14:54:09,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-17 14:54:09,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-07-17 14:54:09,914 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2020-07-17 14:54:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:09,914 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-07-17 14:54:09,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 14:54:09,915 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-17 14:54:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-17 14:54:09,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:09,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:54:09,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:54:09,917 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:09,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:09,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1512571145, now seen corresponding path program 1 times [2020-07-17 14:54:09,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:09,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290120915] [2020-07-17 14:54:09,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:10,024 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 14:54:10,024 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:10,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290120915] [2020-07-17 14:54:10,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:10,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:54:10,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132116075] [2020-07-17 14:54:10,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:54:10,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:10,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:54:10,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:54:10,028 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states. [2020-07-17 14:54:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:10,076 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-07-17 14:54:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 14:54:10,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-07-17 14:54:10,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:10,078 INFO L225 Difference]: With dead ends: 33 [2020-07-17 14:54:10,078 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 14:54:10,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 14:54:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 14:54:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 14:54:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 14:54:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 14:54:10,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-07-17 14:54:10,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:10,081 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 14:54:10,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:54:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 14:54:10,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 14:54:10,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:54:10,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 14:54:10,217 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 14:54:10,218 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 14:54:10,218 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 14:54:10,218 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 14:54:10,218 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 14:54:10,218 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 14:54:10,219 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-17 14:54:10,219 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-17 14:54:10,219 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-07-17 14:54:10,219 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-07-17 14:54:10,219 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-17 14:54:10,220 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,220 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,220 INFO L271 CegarLoopResult]: At program point L31-2(line 31) the Hoare annotation is: true [2020-07-17 14:54:10,220 INFO L264 CegarLoopResult]: At program point L27(lines 27 32) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,221 INFO L271 CegarLoopResult]: At program point L27-2(lines 24 33) the Hoare annotation is: true [2020-07-17 14:54:10,221 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 16 38) the Hoare annotation is: true [2020-07-17 14:54:10,221 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,221 INFO L271 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-07-17 14:54:10,221 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-17 14:54:10,222 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-17 14:54:10,222 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-07-17 14:54:10,222 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,222 INFO L264 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,223 INFO L264 CegarLoopResult]: At program point L28-2(line 28) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,223 INFO L264 CegarLoopResult]: At program point L24-2(lines 24 33) the Hoare annotation is: (or (<= main_~z~0 100) (< 99 main_~x~0)) [2020-07-17 14:54:10,223 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-17 14:54:10,223 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-07-17 14:54:10,224 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-17 14:54:10,224 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-17 14:54:10,224 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 16 38) the Hoare annotation is: true [2020-07-17 14:54:10,224 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,224 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 38) the Hoare annotation is: true [2020-07-17 14:54:10,225 INFO L264 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,225 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,225 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,225 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (< 100 main_~z~0) [2020-07-17 14:54:10,226 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-17 14:54:10,226 INFO L271 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-07-17 14:54:10,226 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-17 14:54:10,226 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-07-17 14:54:10,226 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-07-17 14:54:10,227 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-07-17 14:54:10,227 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 7 12) the Hoare annotation is: true [2020-07-17 14:54:10,227 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 14:54:10,227 INFO L264 CegarLoopResult]: At program point L8(lines 8 10) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 14:54:10,228 INFO L271 CegarLoopResult]: At program point L8-2(lines 7 12) the Hoare annotation is: true [2020-07-17 14:54:10,228 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 14:54:10,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 02:54:10 BoogieIcfgContainer [2020-07-17 14:54:10,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 14:54:10,245 INFO L168 Benchmark]: Toolchain (without parser) took 1739.46 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 99.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:10,246 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 145.2 MB. Free memory is still 120.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 14:54:10,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.73 ms. Allocated memory is still 145.2 MB. Free memory was 101.9 MB in the beginning and 92.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:10,249 INFO L168 Benchmark]: Boogie Preprocessor took 118.61 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 92.3 MB in the beginning and 181.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:10,250 INFO L168 Benchmark]: RCFGBuilder took 325.61 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 166.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:10,250 INFO L168 Benchmark]: TraceAbstraction took 1017.07 ms. Allocated memory is still 202.9 MB. Free memory was 166.3 MB in the beginning and 99.6 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:10,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 145.2 MB. Free memory is still 120.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.73 ms. Allocated memory is still 145.2 MB. Free memory was 101.9 MB in the beginning and 92.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.61 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 92.3 MB in the beginning and 181.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.61 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 166.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1017.07 ms. Allocated memory is still 202.9 MB. Free memory was 166.3 MB in the beginning and 99.6 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 15 SDslu, 165 SDs, 0 SdLazy, 48 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 55 PreInvPairs, 67 NumberOfFragments, 84 HoareAnnotationTreeSize, 55 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...