/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/recursive-with-pointer/simple-recursive.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:15:26,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:15:26,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:15:26,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:15:26,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:15:26,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:15:26,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:15:26,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:15:26,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:15:26,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:15:26,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:15:26,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:15:26,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:15:26,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:15:26,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:15:26,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:15:26,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:15:26,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:15:26,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:15:26,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:15:26,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:15:26,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:15:26,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:15:26,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:15:26,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 13:15:26,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 13:15:26,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 13:15:26,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 13:15:26,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 13:15:26,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 13:15:26,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 13:15:26,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 13:15:26,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 13:15:26,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 13:15:26,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 13:15:26,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 13:15:26,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 13:15:26,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 13:15:26,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:15:26,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:15:26,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:15:26,275 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 13:15:26,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:15:26,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:15:26,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:15:26,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:15:26,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:15:26,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:15:26,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:15:26,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:15:26,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:15:26,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:15:26,286 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:15:26,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:15:26,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:15:26,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:15:26,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:15:26,287 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:15:26,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:15:26,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:15:26,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:15:26,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:15:26,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:15:26,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:15:26,289 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:15:26,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:15:26,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:15:26,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:15:26,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:15:26,564 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:15:26,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-07-17 13:15:26,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1b739d0/263545f0db094bcd823c95e7ba241e34/FLAG41d79c81d [2020-07-17 13:15:27,124 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:15:27,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-07-17 13:15:27,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1b739d0/263545f0db094bcd823c95e7ba241e34/FLAG41d79c81d [2020-07-17 13:15:27,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1b739d0/263545f0db094bcd823c95e7ba241e34 [2020-07-17 13:15:27,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:15:27,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:15:27,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:15:27,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:15:27,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:15:27,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e89a1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27, skipping insertion in model container [2020-07-17 13:15:27,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:15:27,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:15:27,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:15:27,690 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:15:27,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:15:27,722 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:15:27,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27 WrapperNode [2020-07-17 13:15:27,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:15:27,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:15:27,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:15:27,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:15:27,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (1/1) ... [2020-07-17 13:15:27,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:15:27,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:15:27,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:15:27,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:15:27,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (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 13:15:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:15:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:15:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2020-07-17 13:15:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-07-17 13:15:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:15:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:15:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 13:15:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:15:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:15:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:15:28,099 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:15:28,099 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 13:15:28,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:15:28 BoogieIcfgContainer [2020-07-17 13:15:28,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:15:28,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:15:28,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:15:28,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:15:28,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:15:27" (1/3) ... [2020-07-17 13:15:28,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5936c141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:15:28, skipping insertion in model container [2020-07-17 13:15:28,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:15:27" (2/3) ... [2020-07-17 13:15:28,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5936c141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:15:28, skipping insertion in model container [2020-07-17 13:15:28,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:15:28" (3/3) ... [2020-07-17 13:15:28,112 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2020-07-17 13:15:28,122 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:15:28,131 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:15:28,150 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:15:28,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:15:28,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:15:28,175 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:15:28,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:15:28,176 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:15:28,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:15:28,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:15:28,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:15:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-17 13:15:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 13:15:28,209 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:28,210 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] [2020-07-17 13:15:28,212 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:28,220 INFO L82 PathProgramCache]: Analyzing trace with hash 474032392, now seen corresponding path program 1 times [2020-07-17 13:15:28,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:28,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652367645] [2020-07-17 13:15:28,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:28,554 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 13:15:28,560 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:28,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652367645] [2020-07-17 13:15:28,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:28,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 13:15:28,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224708864] [2020-07-17 13:15:28,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 13:15:28,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:28,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 13:15:28,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:15:28,587 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 7 states. [2020-07-17 13:15:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:28,898 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2020-07-17 13:15:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 13:15:28,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-07-17 13:15:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:28,910 INFO L225 Difference]: With dead ends: 65 [2020-07-17 13:15:28,910 INFO L226 Difference]: Without dead ends: 37 [2020-07-17 13:15:28,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-07-17 13:15:28,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-17 13:15:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-07-17 13:15:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-17 13:15:28,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-07-17 13:15:28,963 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2020-07-17 13:15:28,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:28,963 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-07-17 13:15:28,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 13:15:28,964 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-07-17 13:15:28,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-17 13:15:28,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:28,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1] [2020-07-17 13:15:28,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:15:28,967 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:28,967 INFO L82 PathProgramCache]: Analyzing trace with hash 705842607, now seen corresponding path program 1 times [2020-07-17 13:15:28,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:28,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366066096] [2020-07-17 13:15:28,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:29,205 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 13:15:29,207 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:29,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366066096] [2020-07-17 13:15:29,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:29,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 13:15:29,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271064821] [2020-07-17 13:15:29,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 13:15:29,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:29,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 13:15:29,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:15:29,211 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 14 states. [2020-07-17 13:15:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:29,699 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-07-17 13:15:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-17 13:15:29,700 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2020-07-17 13:15:29,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:29,703 INFO L225 Difference]: With dead ends: 55 [2020-07-17 13:15:29,703 INFO L226 Difference]: Without dead ends: 49 [2020-07-17 13:15:29,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2020-07-17 13:15:29,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-17 13:15:29,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-07-17 13:15:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-07-17 13:15:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2020-07-17 13:15:29,733 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 34 [2020-07-17 13:15:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:29,734 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2020-07-17 13:15:29,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 13:15:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2020-07-17 13:15:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 13:15:29,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:29,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:29,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:15:29,737 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:29,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:29,739 INFO L82 PathProgramCache]: Analyzing trace with hash 180793302, now seen corresponding path program 2 times [2020-07-17 13:15:29,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:29,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490593181] [2020-07-17 13:15:29,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:30,077 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 13:15:30,080 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:30,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490593181] [2020-07-17 13:15:30,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:30,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-07-17 13:15:30,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070525378] [2020-07-17 13:15:30,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-17 13:15:30,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:30,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-17 13:15:30,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2020-07-17 13:15:30,084 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 20 states. [2020-07-17 13:15:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:30,967 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2020-07-17 13:15:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-17 13:15:30,967 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 46 [2020-07-17 13:15:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:30,969 INFO L225 Difference]: With dead ends: 67 [2020-07-17 13:15:30,969 INFO L226 Difference]: Without dead ends: 61 [2020-07-17 13:15:30,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=1444, Unknown=0, NotChecked=0, Total=1722 [2020-07-17 13:15:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-17 13:15:30,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-07-17 13:15:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-17 13:15:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2020-07-17 13:15:30,984 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 46 [2020-07-17 13:15:30,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:30,984 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2020-07-17 13:15:30,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-17 13:15:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2020-07-17 13:15:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 13:15:30,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:30,987 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:30,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:15:30,987 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:30,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:30,988 INFO L82 PathProgramCache]: Analyzing trace with hash -68284547, now seen corresponding path program 3 times [2020-07-17 13:15:30,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:30,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351999745] [2020-07-17 13:15:30,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:31,437 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 13:15:31,439 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:31,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351999745] [2020-07-17 13:15:31,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:31,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-07-17 13:15:31,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510040360] [2020-07-17 13:15:31,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-17 13:15:31,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:31,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-17 13:15:31,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2020-07-17 13:15:31,443 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 26 states. [2020-07-17 13:15:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:32,669 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2020-07-17 13:15:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-17 13:15:32,670 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 58 [2020-07-17 13:15:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:32,672 INFO L225 Difference]: With dead ends: 79 [2020-07-17 13:15:32,672 INFO L226 Difference]: Without dead ends: 73 [2020-07-17 13:15:32,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=482, Invalid=2710, Unknown=0, NotChecked=0, Total=3192 [2020-07-17 13:15:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-17 13:15:32,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-07-17 13:15:32,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-17 13:15:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2020-07-17 13:15:32,688 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 58 [2020-07-17 13:15:32,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:32,689 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2020-07-17 13:15:32,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-17 13:15:32,689 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2020-07-17 13:15:32,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-17 13:15:32,690 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:32,691 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:32,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:15:32,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:32,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:32,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1585959772, now seen corresponding path program 4 times [2020-07-17 13:15:32,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:32,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219151105] [2020-07-17 13:15:32,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:33,253 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 13:15:33,254 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:33,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219151105] [2020-07-17 13:15:33,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:33,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-07-17 13:15:33,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694462040] [2020-07-17 13:15:33,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-07-17 13:15:33,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:33,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-07-17 13:15:33,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=883, Unknown=0, NotChecked=0, Total=992 [2020-07-17 13:15:33,260 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 32 states. [2020-07-17 13:15:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:34,875 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2020-07-17 13:15:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-17 13:15:34,876 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 70 [2020-07-17 13:15:34,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:34,878 INFO L225 Difference]: With dead ends: 91 [2020-07-17 13:15:34,878 INFO L226 Difference]: Without dead ends: 85 [2020-07-17 13:15:34,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=741, Invalid=4371, Unknown=0, NotChecked=0, Total=5112 [2020-07-17 13:15:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-17 13:15:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2020-07-17 13:15:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-17 13:15:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2020-07-17 13:15:34,908 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 70 [2020-07-17 13:15:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:34,908 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2020-07-17 13:15:34,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-07-17 13:15:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2020-07-17 13:15:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-17 13:15:34,910 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:34,910 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:34,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 13:15:34,911 INFO L427 AbstractCegarLoop]: === Iteration 6 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1974781771, now seen corresponding path program 5 times [2020-07-17 13:15:34,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:34,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691718235] [2020-07-17 13:15:34,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:35,611 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 13:15:35,616 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:35,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691718235] [2020-07-17 13:15:35,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:35,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2020-07-17 13:15:35,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102188218] [2020-07-17 13:15:35,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-07-17 13:15:35,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:35,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-07-17 13:15:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2020-07-17 13:15:35,619 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 38 states. [2020-07-17 13:15:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:37,615 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2020-07-17 13:15:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-07-17 13:15:37,615 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 82 [2020-07-17 13:15:37,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:37,617 INFO L225 Difference]: With dead ends: 103 [2020-07-17 13:15:37,619 INFO L226 Difference]: Without dead ends: 97 [2020-07-17 13:15:37,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1055, Invalid=6427, Unknown=0, NotChecked=0, Total=7482 [2020-07-17 13:15:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-07-17 13:15:37,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2020-07-17 13:15:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-07-17 13:15:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2020-07-17 13:15:37,649 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 82 [2020-07-17 13:15:37,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:37,653 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2020-07-17 13:15:37,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-07-17 13:15:37,653 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2020-07-17 13:15:37,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-17 13:15:37,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:37,655 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:37,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 13:15:37,656 INFO L427 AbstractCegarLoop]: === Iteration 7 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:37,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:37,656 INFO L82 PathProgramCache]: Analyzing trace with hash 961781618, now seen corresponding path program 6 times [2020-07-17 13:15:37,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:37,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102865194] [2020-07-17 13:15:37,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:38,506 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 13:15:38,512 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:38,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102865194] [2020-07-17 13:15:38,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:38,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2020-07-17 13:15:38,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423751471] [2020-07-17 13:15:38,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-07-17 13:15:38,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:38,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-07-17 13:15:38,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1699, Unknown=0, NotChecked=0, Total=1892 [2020-07-17 13:15:38,515 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 44 states. [2020-07-17 13:15:41,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:41,328 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2020-07-17 13:15:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-17 13:15:41,329 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 94 [2020-07-17 13:15:41,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:41,330 INFO L225 Difference]: With dead ends: 115 [2020-07-17 13:15:41,331 INFO L226 Difference]: Without dead ends: 109 [2020-07-17 13:15:41,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2285 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1424, Invalid=8878, Unknown=0, NotChecked=0, Total=10302 [2020-07-17 13:15:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-17 13:15:41,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2020-07-17 13:15:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-17 13:15:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2020-07-17 13:15:41,351 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 94 [2020-07-17 13:15:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:41,352 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2020-07-17 13:15:41,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-07-17 13:15:41,352 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2020-07-17 13:15:41,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-17 13:15:41,354 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:41,354 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:41,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 13:15:41,355 INFO L427 AbstractCegarLoop]: === Iteration 8 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:41,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:41,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1667527961, now seen corresponding path program 7 times [2020-07-17 13:15:41,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:41,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396066742] [2020-07-17 13:15:41,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:42,439 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 13:15:42,443 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:42,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396066742] [2020-07-17 13:15:42,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:42,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2020-07-17 13:15:42,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088021819] [2020-07-17 13:15:42,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-07-17 13:15:42,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:42,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-07-17 13:15:42,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=2206, Unknown=0, NotChecked=0, Total=2450 [2020-07-17 13:15:42,446 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 50 states. [2020-07-17 13:15:45,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:45,727 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2020-07-17 13:15:45,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-07-17 13:15:45,728 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 106 [2020-07-17 13:15:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:45,730 INFO L225 Difference]: With dead ends: 127 [2020-07-17 13:15:45,730 INFO L226 Difference]: Without dead ends: 121 [2020-07-17 13:15:45,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3083 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1848, Invalid=11724, Unknown=0, NotChecked=0, Total=13572 [2020-07-17 13:15:45,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-07-17 13:15:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2020-07-17 13:15:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-17 13:15:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2020-07-17 13:15:45,747 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 106 [2020-07-17 13:15:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:45,748 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2020-07-17 13:15:45,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-07-17 13:15:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2020-07-17 13:15:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-17 13:15:45,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:45,750 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:45,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 13:15:45,751 INFO L427 AbstractCegarLoop]: === Iteration 9 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:45,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:45,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1856567232, now seen corresponding path program 8 times [2020-07-17 13:15:45,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:45,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422584415] [2020-07-17 13:15:45,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:46,950 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 13:15:46,951 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:46,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422584415] [2020-07-17 13:15:46,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:46,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2020-07-17 13:15:46,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834864086] [2020-07-17 13:15:46,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-07-17 13:15:46,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:46,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-07-17 13:15:46,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=2779, Unknown=0, NotChecked=0, Total=3080 [2020-07-17 13:15:46,956 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 56 states. [2020-07-17 13:15:51,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:51,281 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2020-07-17 13:15:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-17 13:15:51,281 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 118 [2020-07-17 13:15:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:51,283 INFO L225 Difference]: With dead ends: 139 [2020-07-17 13:15:51,283 INFO L226 Difference]: Without dead ends: 133 [2020-07-17 13:15:51,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4000 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2327, Invalid=14965, Unknown=0, NotChecked=0, Total=17292 [2020-07-17 13:15:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-17 13:15:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2020-07-17 13:15:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-17 13:15:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2020-07-17 13:15:51,300 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 118 [2020-07-17 13:15:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:51,300 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2020-07-17 13:15:51,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-07-17 13:15:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2020-07-17 13:15:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-17 13:15:51,302 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:51,303 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:51,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 13:15:51,303 INFO L427 AbstractCegarLoop]: === Iteration 10 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:51,304 INFO L82 PathProgramCache]: Analyzing trace with hash -151316249, now seen corresponding path program 9 times [2020-07-17 13:15:51,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:51,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581643186] [2020-07-17 13:15:51,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:15:53,041 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 13:15:53,047 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:15:53,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581643186] [2020-07-17 13:15:53,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:15:53,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2020-07-17 13:15:53,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465695791] [2020-07-17 13:15:53,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-07-17 13:15:53,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:15:53,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-07-17 13:15:53,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=3418, Unknown=0, NotChecked=0, Total=3782 [2020-07-17 13:15:53,050 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 62 states. [2020-07-17 13:15:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:15:58,372 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2020-07-17 13:15:58,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-07-17 13:15:58,373 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 130 [2020-07-17 13:15:58,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:15:58,375 INFO L225 Difference]: With dead ends: 151 [2020-07-17 13:15:58,375 INFO L226 Difference]: Without dead ends: 145 [2020-07-17 13:15:58,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5121 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2875, Invalid=18881, Unknown=0, NotChecked=0, Total=21756 [2020-07-17 13:15:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-17 13:15:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-07-17 13:15:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-17 13:15:58,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2020-07-17 13:15:58,391 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 130 [2020-07-17 13:15:58,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:15:58,391 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2020-07-17 13:15:58,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-07-17 13:15:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2020-07-17 13:15:58,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-17 13:15:58,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:15:58,394 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:15:58,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 13:15:58,394 INFO L427 AbstractCegarLoop]: === Iteration 11 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:15:58,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:15:58,394 INFO L82 PathProgramCache]: Analyzing trace with hash -830445810, now seen corresponding path program 10 times [2020-07-17 13:15:58,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:15:58,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167423475] [2020-07-17 13:15:58,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:15:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:00,818 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 13:16:00,819 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:00,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167423475] [2020-07-17 13:16:00,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:00,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2020-07-17 13:16:00,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901093346] [2020-07-17 13:16:00,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-07-17 13:16:00,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:00,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-07-17 13:16:00,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=4561, Unknown=0, NotChecked=0, Total=4970 [2020-07-17 13:16:00,821 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand 71 states. [2020-07-17 13:16:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:05,533 INFO L93 Difference]: Finished difference Result 158 states and 159 transitions. [2020-07-17 13:16:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-07-17 13:16:05,533 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 142 [2020-07-17 13:16:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:05,534 INFO L225 Difference]: With dead ends: 158 [2020-07-17 13:16:05,534 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 13:16:05,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8785 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3361, Invalid=24695, Unknown=0, NotChecked=0, Total=28056 [2020-07-17 13:16:05,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 13:16:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 13:16:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 13:16:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 13:16:05,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2020-07-17 13:16:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:05,538 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 13:16:05,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-07-17 13:16:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 13:16:05,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 13:16:05,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 13:16:05,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 13:16:06,596 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 137 [2020-07-17 13:16:06,998 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 126 [2020-07-17 13:16:07,133 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-07-17 13:16:07,281 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-07-17 13:16:07,737 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2020-07-17 13:16:08,099 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-07-17 13:16:08,614 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2020-07-17 13:16:09,135 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 158 [2020-07-17 13:16:09,379 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-07-17 13:16:09,803 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 139 [2020-07-17 13:16:10,228 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 136 [2020-07-17 13:16:10,581 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 121 [2020-07-17 13:16:10,903 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-07-17 13:16:11,244 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-07-17 13:16:11,429 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-07-17 13:16:11,434 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,434 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,435 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,435 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 13:16:11,435 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,435 INFO L271 CegarLoopResult]: At program point fooEXIT(lines 9 18) the Hoare annotation is: true [2020-07-17 13:16:11,436 INFO L264 CegarLoopResult]: At program point fooENTRY(lines 9 18) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= 13 .cse0)) (and (<= .cse1 13) (<= 13 .cse1)) (not (<= .cse0 13))) (or (not (= 20 .cse0)) (= 20 .cse1)) (or (not (<= .cse0 14)) (not (<= 14 .cse0)) (and (<= .cse1 14) (<= 14 .cse1))) (or (not (= 10 .cse0)) (= 10 .cse1)) (or (not (<= .cse0 12)) (and (<= 12 .cse1) (<= .cse1 12)) (not (<= 12 .cse0))) (or (not (<= 15 .cse0)) (and (<= 15 .cse1) (<= .cse1 15)) (not (<= .cse0 15))) (or (not (<= 11 .cse0)) (and (<= .cse1 11) (<= 11 .cse1)) (not (<= .cse0 11))) (or (not (<= 19 .cse0)) (not (<= .cse0 19)) (and (<= 19 .cse1) (<= .cse1 19))) (or (and (<= 17 .cse1) (<= .cse1 17)) (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 18 .cse0)) (and (<= 18 .cse1) (<= .cse1 18)) (not (<= .cse0 18))) (or (not (<= 16 .cse0)) (and (<= 16 .cse1) (<= .cse1 16)) (not (<= .cse0 16))))) [2020-07-17 13:16:11,436 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (not (= 20 .cse0)) (or (not (<= .cse0 12)) (not (<= 12 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0))) (or (not (<= 19 .cse0)) (not (<= .cse0 19))) (not (= 10 .cse0)) (or (not (<= 11 .cse0)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (not (<= .cse0 13))) (or (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (not (<= .cse0 18))))) [2020-07-17 13:16:11,437 INFO L264 CegarLoopResult]: At program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (not (= 20 .cse0)) (or (not (<= .cse0 12)) (not (<= 12 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0))) (or (not (<= 19 .cse0)) (not (<= .cse0 19))) (not (= 10 .cse0)) (or (not (<= 11 .cse0)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (not (<= .cse0 13))) (or (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (not (<= .cse0 18))))) [2020-07-17 13:16:11,437 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (= 20 .cse0)) (and (= 20 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (= 20 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)))) (or (not (<= .cse0 12)) (not (<= 12 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0))) (or (not (<= 19 .cse0)) (not (<= .cse0 19))) (not (= 10 .cse0)) (or (not (<= 11 .cse0)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (not (<= .cse0 13))) (or (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (not (<= .cse0 18))))) [2020-07-17 13:16:11,438 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse2 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (not (= 20 .cse0)) (or (not (<= .cse0 12)) (and (<= 12 .cse1) (<= .cse1 12) (<= .cse2 12) (<= 12 .cse2)) (not (<= 12 .cse0))) (or (not (<= 13 .cse0)) (and (<= 13 .cse2) (<= .cse1 13) (<= .cse2 13) (<= 13 .cse1)) (not (<= .cse0 13))) (or (not (<= 11 .cse0)) (and (<= .cse1 11) (<= 11 .cse2) (<= 11 .cse1) (<= .cse2 11)) (not (<= .cse0 11))) (or (and (<= 15 .cse2) (<= 15 .cse1) (<= .cse1 15) (<= .cse2 15)) (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (and (<= 18 .cse2) (<= 18 .cse1) (<= .cse2 18) (<= .cse1 18)) (not (<= .cse0 18))) (or (not (= 10 .cse0)) (and (= 10 .cse2) (= 10 .cse1))) (or (not (<= 19 .cse0)) (not (<= .cse0 19)) (and (<= 19 .cse1) (<= .cse2 19) (<= 19 .cse2))) (or (not (<= .cse0 17)) (not (<= 17 .cse0)) (and (<= 17 .cse2) (<= .cse2 17) (<= 17 .cse1) (<= .cse1 17))) (or (not (<= .cse0 14)) (not (<= 14 .cse0)) (and (<= .cse1 14) (<= .cse2 14) (<= 14 .cse2) (<= 14 .cse1))) (or (not (<= 16 .cse0)) (and (<= 16 .cse1) (<= .cse2 16) (<= .cse1 16) (<= 16 .cse2)) (not (<= .cse0 16))))) [2020-07-17 13:16:11,438 INFO L264 CegarLoopResult]: At program point L12-1(lines 12 17) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (= 20 .cse0)) (and (= 20 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (= 20 |foo_#t~mem3|) (= 20 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)))) (or (not (<= .cse0 12)) (not (<= 12 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0))) (or (not (<= 19 .cse0)) (not (<= .cse0 19))) (not (= 10 .cse0)) (or (not (<= 11 .cse0)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (not (<= .cse0 13))) (or (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (not (<= .cse0 18))))) [2020-07-17 13:16:11,439 INFO L264 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse2 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= .cse0 12)) (and (<= 12 .cse1) (<= .cse1 12) (<= .cse2 12) (<= 12 .cse2)) (not (<= 12 .cse0))) (or (not (<= 11 .cse0)) (and (<= .cse1 11) (<= 11 .cse2) (<= 11 .cse1) (<= .cse2 11)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (and (<= 13 .cse2) (<= .cse1 13) (<= .cse2 13) (<= 13 .cse1)) (not (<= .cse0 13))) (or (and (<= 15 .cse2) (<= 15 .cse1) (<= .cse1 15) (<= .cse2 15)) (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (and (<= 18 .cse2) (<= 18 .cse1) (<= .cse2 18) (<= .cse1 18)) (not (<= .cse0 18))) (or (not (= 20 .cse0)) (and (= 20 .cse2) (= 20 .cse1))) (or (not (<= 19 .cse0)) (not (<= .cse0 19)) (and (<= 19 .cse1) (<= .cse2 19) (<= 19 .cse2) (<= .cse1 19))) (or (not (= 10 .cse0)) (and (= 10 .cse2) (= 10 .cse1))) (or (not (<= .cse0 17)) (not (<= 17 .cse0)) (and (<= 17 .cse2) (<= .cse2 17) (<= 17 .cse1) (<= .cse1 17))) (or (not (<= .cse0 14)) (not (<= 14 .cse0)) (and (<= .cse1 14) (<= .cse2 14) (<= 14 .cse2) (<= 14 .cse1))) (or (not (<= 16 .cse0)) (and (<= 16 .cse1) (<= .cse2 16) (<= .cse1 16) (<= 16 .cse2)) (not (<= .cse0 16))))) [2020-07-17 13:16:11,439 INFO L264 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: (not (= 10 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) [2020-07-17 13:16:11,440 INFO L264 CegarLoopResult]: At program point L10-1(lines 10 17) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| foo_~p.base) foo_~p.offset))) (let ((.cse3 (<= .cse2 |foo_#t~mem2|)) (.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= .cse0 14)) (not (<= 14 .cse0)) (and (<= .cse1 14) (<= |foo_#t~mem2| 14) (<= .cse2 14) (<= 14 .cse2) (<= 14 .cse1))) (or (not (<= 11 .cse0)) (and (<= .cse1 11) (<= 11 .cse2) (<= .cse2 11) (<= 11 .cse1) (<= |foo_#t~mem2| 11)) (not (<= .cse0 11))) (or (and (<= 17 .cse2) (<= .cse2 17) (<= 17 .cse1) (<= .cse1 17) (<= |foo_#t~mem2| 17)) (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (= 10 .cse0)) (and (= 10 |foo_#t~mem2|) (= 10 .cse2) (= 10 .cse1))) (or (not (<= 16 .cse0)) (and (<= 16 .cse1) (<= .cse2 16) (<= |foo_#t~mem2| 16) (<= .cse1 16) (<= 16 .cse2)) (not (<= .cse0 16))) (or (not (<= .cse0 12)) (not (<= 12 .cse0)) (and (<= |foo_#t~mem2| 12) (<= 12 .cse1) (<= .cse1 12) (<= .cse2 12) (<= 12 .cse2))) (or (not (<= 13 .cse0)) (and (<= 13 .cse2) (<= .cse1 13) (<= |foo_#t~mem2| 13) (<= .cse2 13) (<= 13 .cse1)) (not (<= .cse0 13))) (or (not (= 20 .cse0)) (and (= 20 .cse2) .cse3 (= 20 .cse1))) (or (not (<= 19 .cse0)) (not (<= .cse0 19)) (and .cse3 (<= 19 .cse1) (<= 19 .cse2) (<= |foo_#t~mem2| 19) (<= .cse1 19))) (or (not (<= 18 .cse0)) (not (<= .cse0 18)) (and (<= 18 .cse2) (<= |foo_#t~mem2| 18) (<= 18 .cse1) (<= .cse2 18) (<= .cse1 18))) (or (not (<= 15 .cse0)) (and (<= 15 .cse2) (<= |foo_#t~mem2| 15) (<= 15 .cse1) (<= .cse1 15) (<= .cse2 15)) (not (<= .cse0 15)))))) [2020-07-17 13:16:11,440 INFO L264 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (not (= 20 .cse0)) (or (not (<= .cse0 12)) (not (<= 12 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0))) (or (not (<= 19 .cse0)) (not (<= .cse0 19))) (not (= 10 .cse0)) (or (not (<= 11 .cse0)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (not (<= .cse0 13))) (or (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (not (<= .cse0 18))))) [2020-07-17 13:16:11,440 INFO L264 CegarLoopResult]: At program point L10-2(line 10) the Hoare annotation is: (let ((.cse3 (<= |foo_#t~mem2| 19)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse2 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (not (= 20 .cse0)) (or (not (<= .cse0 12)) (and (<= |foo_#t~mem2| 13) (<= 12 .cse1) (<= .cse1 12) (<= .cse2 12) (<= 12 .cse2)) (not (<= 12 .cse0))) (or (and (<= |foo_#t~mem2| 11) (= 10 .cse2) (= 10 .cse1)) (not (= 10 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0)) (and (<= .cse1 14) (<= |foo_#t~mem2| 15) (<= .cse2 14) (<= 14 .cse2) (<= 14 .cse1))) (or (not (<= 19 .cse0)) (not (<= .cse0 19)) (and (<= .cse2 |foo_#t~mem2|) (<= 19 .cse1) (<= 19 .cse2) .cse3)) (or (not (<= 13 .cse0)) (and (<= 13 .cse2) (<= |foo_#t~mem2| 14) (<= .cse1 13) (<= .cse2 13) (<= 13 .cse1)) (not (<= .cse0 13))) (or (and (<= 15 .cse2) (<= 15 .cse1) (<= |foo_#t~mem2| 16) (<= .cse1 15) (<= .cse2 15)) (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 11 .cse0)) (and (<= .cse1 11) (<= |foo_#t~mem2| 12) (<= 11 .cse2) (<= .cse2 11) (<= 11 .cse1)) (not (<= .cse0 11))) (or (not (<= 18 .cse0)) (and (<= 18 .cse2) (<= 18 .cse1) (<= .cse2 18) (<= .cse1 18) .cse3) (not (<= .cse0 18))) (or (not (<= 16 .cse0)) (and (<= 16 .cse1) (<= .cse2 16) (<= .cse1 16) (<= 16 .cse2) (<= |foo_#t~mem2| 17)) (not (<= .cse0 16))) (or (not (<= .cse0 17)) (not (<= 17 .cse0)) (and (<= |foo_#t~mem2| 18) (<= 17 .cse2) (<= .cse2 17) (<= 17 .cse1) (<= .cse1 17))))) [2020-07-17 13:16:11,441 INFO L264 CegarLoopResult]: At program point L10-3(line 10) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= .cse0 12)) (not (<= 12 .cse0))) (or (not (<= .cse0 14)) (not (<= 14 .cse0))) (or (not (<= 19 .cse0)) (not (<= .cse0 19))) (not (= 10 .cse0)) (or (not (<= 11 .cse0)) (not (<= .cse0 11))) (or (not (<= 13 .cse0)) (not (<= .cse0 13))) (or (not (<= .cse0 17)) (not (<= 17 .cse0))) (or (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (= 20 .cse0)) (let ((.cse1 (select (select |#memory_int| foo_~p.base) foo_~p.offset))) (and (= 20 .cse1) (<= .cse1 |foo_#t~mem2|) (= 20 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))))) (or (not (<= 15 .cse0)) (not (<= .cse0 15))) (or (not (<= 18 .cse0)) (not (<= .cse0 18))))) [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point L10-4(lines 9 18) the Hoare annotation is: true [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 13:16:11,441 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 26) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 20 26) the Hoare annotation is: true [2020-07-17 13:16:11,441 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-07-17 13:16:11,442 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 20 26) the Hoare annotation is: true [2020-07-17 13:16:11,442 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-07-17 13:16:11,442 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (= 10 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset)) [2020-07-17 13:16:11,442 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 13:16:11,442 INFO L271 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-07-17 13:16:11,442 INFO L264 CegarLoopResult]: At program point L20(lines 20 26) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 13:16:11,442 INFO L271 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: true [2020-07-17 13:16:11,442 INFO L271 CegarLoopResult]: At program point L22-3(line 22) the Hoare annotation is: true [2020-07-17 13:16:11,443 INFO L264 CegarLoopResult]: At program point L5-4(line 5) the Hoare annotation is: (let ((.cse3 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|))) (let ((.cse1 (<= 18 .cse3)) (.cse2 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse0 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (and (or (and (= 20 .cse0) (= 19 |plus_#t~post1|) .cse1) (not (<= .cse2 19)) (not (<= 19 .cse2))) (or (not (<= .cse2 15)) (and (<= 15 .cse3) (<= .cse0 16) (<= .cse3 16) (<= 16 .cse0) (<= |plus_#t~post1| 15) (<= 15 |plus_#t~post1|)) (not (<= 15 .cse2))) (or (not (<= 12 .cse2)) (not (<= .cse2 12)) (and (<= .cse0 13) (<= 12 |plus_#t~post1|) (<= 12 .cse3) (<= |plus_#t~post1| 12) (<= 13 .cse0) (<= .cse3 13))) (or (and (<= .cse0 14) (<= 14 .cse0) (<= 13 |plus_#t~post1|) (<= 13 .cse3) (<= .cse3 14) (<= |plus_#t~post1| 13)) (not (<= .cse2 13)) (not (<= 13 .cse2))) (or (not (= 10 .cse2)) (and (<= .cse3 11) (<= .cse0 11) (<= 11 .cse0) (= 10 |plus_#t~post1|))) (or (and (<= .cse0 19) .cse1 (<= |plus_#t~post1| 18) (<= 18 |plus_#t~post1|) (<= 19 .cse0)) (not (<= 18 .cse2)) (not (<= .cse2 18))) (or (not (<= .cse2 14)) (and (<= .cse3 15) (<= 14 .cse3) (<= 15 .cse0) (<= 14 |plus_#t~post1|) (<= .cse0 15) (<= |plus_#t~post1| 14)) (not (<= 14 .cse2))) (or (not (<= 16 .cse2)) (not (<= .cse2 16)) (and (<= 16 .cse3) (<= |plus_#t~post1| 16) (<= 17 .cse0) (<= .cse3 17) (<= 16 |plus_#t~post1|) (<= .cse0 17))) (or (and (<= 11 |plus_#t~post1|) (<= 12 .cse0) (<= .cse3 12) (<= .cse0 12) (<= |plus_#t~post1| 11) (<= 11 .cse3)) (not (<= .cse2 11)) (not (<= 11 .cse2))) (or (not (<= 17 .cse2)) (not (<= .cse2 17)) (and (<= .cse3 18) (<= |plus_#t~post1| 17) (<= 17 .cse3) (<= 18 .cse0) (<= 17 |plus_#t~post1|) (<= .cse0 18)))))) [2020-07-17 13:16:11,443 INFO L271 CegarLoopResult]: At program point plusFINAL(lines 4 7) the Hoare annotation is: true [2020-07-17 13:16:11,444 INFO L264 CegarLoopResult]: At program point plusENTRY(lines 4 7) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (and (<= .cse0 18) (<= 18 .cse0)) (not (<= 18 .cse1)) (not (<= .cse1 18))) (or (not (<= .cse1 14)) (and (<= 14 .cse0) (<= .cse0 14)) (not (<= 14 .cse1))) (or (and (<= .cse0 17) (<= 17 .cse0)) (not (<= 17 .cse1)) (not (<= .cse1 17))) (or (not (<= .cse1 15)) (not (<= 15 .cse1)) (and (<= 15 .cse0) (<= .cse0 15))) (or (not (<= 16 .cse1)) (and (<= 16 .cse0) (<= .cse0 16)) (not (<= .cse1 16))) (or (not (= 10 .cse1)) (= 10 .cse0)) (or (not (<= .cse1 19)) (and (<= .cse0 19) (<= 19 .cse0)) (not (<= 19 .cse1))) (or (not (<= 12 .cse1)) (and (<= .cse0 12) (<= 12 .cse0)) (not (<= .cse1 12))) (or (and (<= 13 .cse0) (<= .cse0 13)) (not (<= .cse1 13)) (not (<= 13 .cse1))) (or (not (<= .cse1 11)) (and (<= .cse0 11) (<= 11 .cse0)) (not (<= 11 .cse1))))) [2020-07-17 13:16:11,444 INFO L271 CegarLoopResult]: At program point plusEXIT(lines 4 7) the Hoare annotation is: true [2020-07-17 13:16:11,444 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (let ((.cse3 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|))) (let ((.cse2 (<= 18 .cse3)) (.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (and (or (not (<= .cse0 19)) (and (= 20 .cse1) .cse2) (not (<= 19 .cse0))) (or (not (<= 12 .cse0)) (and (<= .cse1 13) (<= 12 .cse3) (<= 13 .cse1) (<= .cse3 13)) (not (<= .cse0 12))) (or (and (<= .cse1 19) .cse2 (<= 19 .cse1)) (not (<= 18 .cse0)) (not (<= .cse0 18))) (or (not (<= .cse0 13)) (not (<= 13 .cse0)) (and (<= .cse1 14) (<= 14 .cse1) (<= 13 .cse3) (<= .cse3 14))) (or (not (<= .cse0 11)) (not (<= 11 .cse0)) (and (<= 12 .cse1) (<= .cse3 12) (<= .cse1 12) (<= 11 .cse3))) (or (and (<= 16 .cse3) (<= 17 .cse1) (<= .cse3 17) (<= .cse1 17)) (not (<= 16 .cse0)) (not (<= .cse0 16))) (or (not (<= 17 .cse0)) (and (<= .cse3 18) (<= 17 .cse3) (<= 18 .cse1) (<= .cse1 18)) (not (<= .cse0 17))) (or (not (<= .cse0 15)) (not (<= 15 .cse0)) (and (<= 15 .cse3) (<= .cse1 16) (<= .cse3 16) (<= 16 .cse1))) (or (not (<= .cse0 14)) (and (<= .cse3 15) (<= 14 .cse3) (<= 15 .cse1) (<= .cse1 15)) (not (<= 14 .cse0))) (or (not (= 10 .cse0)) (and (<= .cse3 11) (<= .cse1 11) (<= 11 .cse1)))))) [2020-07-17 13:16:11,445 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse0 (select (select |#memory_int| plus_~p.base) plus_~p.offset)) (.cse2 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (and (<= .cse0 14) (<= 14 .cse1) (<= 14 .cse0) (<= .cse1 14)) (not (<= .cse2 14)) (not (<= 14 .cse2))) (or (and (<= 12 .cse0) (<= .cse1 12) (<= .cse0 12) (<= 12 .cse1)) (not (<= 12 .cse2)) (not (<= .cse2 12))) (or (not (= 10 .cse2)) (and (= 10 .cse1) (= 10 .cse0))) (or (not (<= .cse2 11)) (not (<= 11 .cse2)) (and (<= .cse1 11) (<= .cse0 11) (<= 11 .cse0) (<= 11 .cse1))) (or (not (<= .cse2 15)) (and (<= 15 .cse1) (<= .cse1 15) (<= 15 .cse0) (<= .cse0 15)) (not (<= 15 .cse2))) (or (and (<= .cse1 19) (<= .cse0 19) (<= 19 .cse1) (<= 19 .cse0)) (not (<= .cse2 19)) (not (<= 19 .cse2))) (or (and (<= 16 .cse1) (<= .cse0 16) (<= .cse1 16) (<= 16 .cse0)) (not (<= 16 .cse2)) (not (<= .cse2 16))) (or (not (<= .cse2 13)) (not (<= 13 .cse2)) (and (<= .cse0 13) (<= 13 .cse1) (<= 13 .cse0) (<= .cse1 13))) (or (and (<= .cse1 18) (<= 18 .cse1) (<= 18 .cse0) (<= .cse0 18)) (not (<= 18 .cse2)) (not (<= .cse2 18))) (or (not (<= 17 .cse2)) (and (<= 17 .cse0) (<= .cse1 17) (<= 17 .cse1) (<= .cse0 17)) (not (<= .cse2 17))))) [2020-07-17 13:16:11,446 INFO L264 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse2 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (and (or (not (<= 12 .cse0)) (and (<= |plus_#t~mem0| 12) (<= 12 |plus_#t~mem0|) (<= 12 .cse1) (<= .cse2 12) (<= .cse1 12) (<= 12 .cse2)) (not (<= .cse0 12))) (or (not (<= .cse0 15)) (not (<= 15 .cse0)) (and (<= 15 .cse2) (<= .cse2 15) (<= 15 .cse1) (<= 15 |plus_#t~mem0|) (<= |plus_#t~mem0| 15) (<= .cse1 15))) (or (not (= 10 .cse0)) (and (= 10 .cse2) (= 10 .cse1) (= 10 |plus_#t~mem0|))) (or (not (<= .cse0 13)) (not (<= 13 .cse0)) (and (<= .cse1 13) (<= 13 .cse2) (<= 13 .cse1) (<= |plus_#t~mem0| 13) (<= .cse2 13) (<= 13 |plus_#t~mem0|))) (or (and (<= .cse2 11) (<= 11 |plus_#t~mem0|) (<= .cse1 11) (<= 11 .cse1) (<= |plus_#t~mem0| 11) (<= 11 .cse2)) (not (<= .cse0 11)) (not (<= 11 .cse0))) (or (not (<= .cse0 19)) (not (<= 19 .cse0)) (and (<= .cse2 19) (<= |plus_#t~mem0| 19) (<= 19 |plus_#t~mem0|) (<= .cse1 19) (<= 19 .cse2) (<= 19 .cse1))) (or (not (<= .cse0 14)) (and (<= .cse1 14) (<= 14 .cse2) (<= 14 |plus_#t~mem0|) (<= |plus_#t~mem0| 14) (<= 14 .cse1) (<= .cse2 14)) (not (<= 14 .cse0))) (or (and (<= .cse2 18) (<= 18 |plus_#t~mem0|) (<= 18 .cse2) (<= 18 .cse1) (<= |plus_#t~mem0| 18) (<= .cse1 18)) (not (<= 18 .cse0)) (not (<= .cse0 18))) (or (and (<= 17 .cse1) (<= .cse2 17) (<= |plus_#t~mem0| 17) (<= 17 .cse2) (<= 17 |plus_#t~mem0|) (<= .cse1 17)) (not (<= 17 .cse0)) (not (<= .cse0 17))) (or (not (<= 16 .cse0)) (not (<= .cse0 16)) (and (<= 16 .cse2) (<= .cse1 16) (<= .cse2 16) (<= 16 |plus_#t~mem0|) (<= 16 .cse1) (<= |plus_#t~mem0| 16))))) [2020-07-17 13:16:11,446 INFO L264 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| plus_~p.base) plus_~p.offset)) (.cse0 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse2 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (and (= 10 .cse0) (= 10 .cse1) (= 10 |plus_#t~post1|) (= 10 |plus_#t~mem0|)) (not (= 10 .cse2))) (or (not (<= .cse2 15)) (not (<= 15 .cse2)) (and (<= 15 .cse0) (<= .cse0 15) (<= 15 .cse1) (<= 15 |plus_#t~mem0|) (<= |plus_#t~mem0| 15) (<= |plus_#t~post1| 15) (<= 15 |plus_#t~post1|) (<= .cse1 15))) (or (and (<= 11 |plus_#t~post1|) (<= .cse0 11) (<= 11 |plus_#t~mem0|) (<= .cse1 11) (<= |plus_#t~post1| 11) (<= 11 .cse1) (<= |plus_#t~mem0| 11) (<= 11 .cse0)) (not (<= .cse2 11)) (not (<= 11 .cse2))) (or (not (<= 17 .cse2)) (not (<= .cse2 17)) (and (<= 17 .cse1) (<= .cse0 17) (<= |plus_#t~post1| 17) (<= |plus_#t~mem0| 17) (<= 17 .cse0) (<= 17 |plus_#t~mem0|) (<= 17 |plus_#t~post1|) (<= .cse1 17))) (or (not (<= 16 .cse2)) (not (<= .cse2 16)) (and (<= 16 .cse0) (<= |plus_#t~post1| 16) (<= .cse1 16) (<= .cse0 16) (<= 16 |plus_#t~mem0|) (<= 16 |plus_#t~post1|) (<= 16 .cse1) (<= |plus_#t~mem0| 16))) (or (not (<= .cse2 19)) (not (<= 19 .cse2)) (and (<= .cse0 19) (<= |plus_#t~mem0| 19) (<= 19 |plus_#t~mem0|) (= 19 |plus_#t~post1|) (<= .cse1 19) (<= 19 .cse0) (<= 19 .cse1))) (or (and (<= .cse0 18) (<= 18 |plus_#t~mem0|) (<= 18 .cse0) (<= |plus_#t~post1| 18) (<= 18 .cse1) (<= |plus_#t~mem0| 18) (<= .cse1 18) (<= 18 |plus_#t~post1|)) (not (<= 18 .cse2)) (not (<= .cse2 18))) (or (and (<= .cse1 14) (<= 14 .cse0) (<= 14 |plus_#t~mem0|) (<= 14 |plus_#t~post1|) (<= |plus_#t~mem0| 14) (<= 14 .cse1) (<= .cse0 14) (<= |plus_#t~post1| 14)) (not (<= .cse2 14)) (not (<= 14 .cse2))) (or (and (<= |plus_#t~mem0| 12) (<= 12 |plus_#t~mem0|) (<= 12 .cse1) (<= .cse0 12) (<= .cse1 12) (<= 12 |plus_#t~post1|) (<= 12 .cse0) (<= |plus_#t~post1| 12)) (not (<= 12 .cse2)) (not (<= .cse2 12))) (or (and (<= .cse1 13) (<= 13 |plus_#t~post1|) (<= 13 .cse0) (<= 13 .cse1) (<= |plus_#t~mem0| 13) (<= |plus_#t~post1| 13) (<= .cse0 13) (<= 13 |plus_#t~mem0|)) (not (<= .cse2 13)) (not (<= 13 .cse2))))) [2020-07-17 13:16:11,447 INFO L264 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|))) (let ((.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| plus_~p.base) plus_~p.offset)) (.cse3 (<= 18 .cse2))) (and (or (not (<= .cse0 13)) (not (<= 13 .cse0)) (and (<= .cse1 14) (<= 14 .cse1) (<= 13 |plus_#t~post1|) (<= 13 .cse2) (<= |plus_#t~mem0| 13) (<= .cse2 14) (<= |plus_#t~post1| 13) (<= 13 |plus_#t~mem0|))) (or (and (<= 18 |plus_#t~mem0|) (<= .cse1 19) .cse3 (<= |plus_#t~post1| 18) (<= |plus_#t~mem0| 18) (<= 18 |plus_#t~post1|) (<= 19 .cse1)) (not (<= 18 .cse0)) (not (<= .cse0 18))) (or (and (<= 15 .cse2) (<= .cse1 16) (<= .cse2 16) (<= 15 |plus_#t~mem0|) (<= 16 .cse1) (<= |plus_#t~mem0| 15) (<= |plus_#t~post1| 15) (<= 15 |plus_#t~post1|)) (not (<= .cse0 15)) (not (<= 15 .cse0))) (or (not (<= .cse0 11)) (not (<= 11 .cse0)) (and (<= 11 |plus_#t~post1|) (<= 12 .cse1) (<= .cse2 12) (<= 11 |plus_#t~mem0|) (<= .cse1 12) (<= |plus_#t~post1| 11) (<= |plus_#t~mem0| 11) (<= 11 .cse2))) (or (not (<= 16 .cse0)) (not (<= .cse0 16)) (and (<= 16 .cse2) (<= |plus_#t~post1| 16) (<= 17 .cse1) (<= .cse2 17) (<= 16 |plus_#t~mem0|) (<= 16 |plus_#t~post1|) (<= |plus_#t~mem0| 16) (<= .cse1 17))) (or (not (= 10 .cse0)) (and (<= .cse2 11) (<= .cse1 11) (<= 11 .cse1) (= 10 |plus_#t~post1|) (= 10 |plus_#t~mem0|))) (or (not (<= 17 .cse0)) (not (<= .cse0 17)) (and (<= .cse2 18) (<= |plus_#t~post1| 17) (<= |plus_#t~mem0| 17) (<= 17 .cse2) (<= 18 .cse1) (<= 17 |plus_#t~mem0|) (<= 17 |plus_#t~post1|) (<= .cse1 18))) (or (not (<= .cse0 14)) (and (<= .cse2 15) (<= 14 .cse2) (<= 15 .cse1) (<= 14 |plus_#t~mem0|) (<= 14 |plus_#t~post1|) (<= |plus_#t~mem0| 14) (<= .cse1 15) (<= |plus_#t~post1| 14)) (not (<= 14 .cse0))) (or (and (<= |plus_#t~mem0| 12) (<= .cse1 13) (<= 12 |plus_#t~mem0|) (<= 12 |plus_#t~post1|) (<= 12 .cse2) (<= |plus_#t~post1| 12) (<= 13 .cse1) (<= .cse2 13)) (not (<= 12 .cse0)) (not (<= .cse0 12))) (or (not (<= .cse0 19)) (not (<= 19 .cse0)) (and (<= |plus_#t~mem0| 19) (= 20 .cse1) (<= 19 |plus_#t~mem0|) (= 19 |plus_#t~post1|) .cse3))))) [2020-07-17 13:16:11,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:16:11 BoogieIcfgContainer [2020-07-17 13:16:11,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:16:11,462 INFO L168 Benchmark]: Toolchain (without parser) took 44002.60 ms. Allocated memory was 136.8 MB in the beginning and 486.0 MB in the end (delta: 349.2 MB). Free memory was 102.0 MB in the beginning and 298.3 MB in the end (delta: -196.3 MB). Peak memory consumption was 363.7 MB. Max. memory is 7.1 GB. [2020-07-17 13:16:11,463 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 13:16:11,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.18 ms. Allocated memory is still 136.8 MB. Free memory was 101.6 MB in the beginning and 92.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-17 13:16:11,464 INFO L168 Benchmark]: Boogie Preprocessor took 103.37 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 92.1 MB in the beginning and 178.9 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:16:11,465 INFO L168 Benchmark]: RCFGBuilder took 277.36 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 162.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:16:11,466 INFO L168 Benchmark]: TraceAbstraction took 43354.60 ms. Allocated memory was 200.8 MB in the beginning and 486.0 MB in the end (delta: 285.2 MB). Free memory was 162.1 MB in the beginning and 298.3 MB in the end (delta: -136.2 MB). Peak memory consumption was 359.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:16:11,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.18 ms. Allocated memory is still 136.8 MB. Free memory was 101.6 MB in the beginning and 92.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.37 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 92.1 MB in the beginning and 178.9 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 277.36 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 162.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43354.60 ms. Allocated memory was 200.8 MB in the beginning and 486.0 MB in the end (delta: 285.2 MB). Free memory was 162.1 MB in the beginning and 298.3 MB in the end (delta: -136.2 MB). Peak memory consumption was 359.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 - ProcedureContractResult [Line: 9]: Procedure Contract for foo Derived contract for procedure foo: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 4]: Procedure Contract for plus Derived contract for procedure plus: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.3s, OverallIterations: 11, TraceHistogramMax: 11, AutomataDifference: 27.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 327 SDtfs, 1785 SDslu, 2852 SDs, 0 SdLazy, 8448 SolverSat, 430 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1069 GetRequests, 119 SyntacticMatches, 10 SemanticMatches, 940 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26894 ImplicationChecksByTransitivity, 28.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 20 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 287 PreInvPairs, 339 NumberOfFragments, 6555 HoareAnnotationTreeSize, 287 FomulaSimplifications, 148628 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 2770 FormulaSimplificationTreeSizeReductionInter, 5.3s 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...