/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/ldv-regression/test28-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:29:33,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:29:33,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:29:33,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:29:33,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:29:33,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:29:33,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:29:33,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:29:33,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:29:33,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:29:33,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:29:33,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:29:33,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:29:33,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:29:33,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:29:33,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:29:33,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:29:33,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:29:33,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:29:34,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:29:34,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:29:34,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:29:34,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:29:34,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:29:34,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:29:34,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:29:34,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:29:34,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:29:34,027 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 13:29:34,054 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:29:34,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:29:34,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:29:34,060 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:29:34,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:29:34,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:29:34,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:29:34,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:29:34,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:29:34,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:29:34,061 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:29:34,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:29:34,062 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:29:34,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:29:34,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:29:34,063 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:29:34,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:29:34,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:29:34,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:29:34,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:29:34,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:29:34,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:29:34,065 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:29:34,340 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:29:34,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:29:34,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:29:34,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:29:34,360 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:29:34,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28-2.c [2020-07-17 13:29:34,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342239bcb/db39891bc1784135b0fa6e1792b3dcc2/FLAGc2abb0598 [2020-07-17 13:29:34,875 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:29:34,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-2.c [2020-07-17 13:29:34,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342239bcb/db39891bc1784135b0fa6e1792b3dcc2/FLAGc2abb0598 [2020-07-17 13:29:35,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342239bcb/db39891bc1784135b0fa6e1792b3dcc2 [2020-07-17 13:29:35,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:29:35,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:29:35,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:29:35,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:29:35,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:29:35,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d890f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35, skipping insertion in model container [2020-07-17 13:29:35,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:29:35,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:29:35,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:29:35,482 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:29:35,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:29:35,513 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:29:35,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35 WrapperNode [2020-07-17 13:29:35,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:29:35,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:29:35,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:29:35,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:29:35,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (1/1) ... [2020-07-17 13:29:35,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:29:35,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:29:35,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:29:35,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:29:35,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (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 13:29:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:29:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:29:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:29:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:29:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:29:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:29:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:29:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:29:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:29:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:29:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:29:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:29:35,926 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:29:35,927 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 13:29:35,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:29:35 BoogieIcfgContainer [2020-07-17 13:29:35,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:29:35,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:29:35,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:29:35,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:29:35,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:29:35" (1/3) ... [2020-07-17 13:29:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dc8232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:29:35, skipping insertion in model container [2020-07-17 13:29:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:29:35" (2/3) ... [2020-07-17 13:29:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dc8232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:29:35, skipping insertion in model container [2020-07-17 13:29:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:29:35" (3/3) ... [2020-07-17 13:29:35,939 INFO L109 eAbstractionObserver]: Analyzing ICFG test28-2.c [2020-07-17 13:29:35,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:29:35,968 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:29:35,989 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:29:36,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:29:36,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:29:36,014 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:29:36,015 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:29:36,015 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:29:36,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:29:36,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:29:36,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:29:36,035 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-17 13:29:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-17 13:29:36,048 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:29:36,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:29:36,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:29:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:29:36,058 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-07-17 13:29:36,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:29:36,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2313773] [2020-07-17 13:29:36,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:29:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:36,311 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 13:29:36,313 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:29:36,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2313773] [2020-07-17 13:29:36,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:29:36,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 13:29:36,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426493981] [2020-07-17 13:29:36,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 13:29:36,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:29:36,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 13:29:36,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 13:29:36,352 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-07-17 13:29:36,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:29:36,568 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-07-17 13:29:36,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 13:29:36,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-17 13:29:36,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:29:36,592 INFO L225 Difference]: With dead ends: 54 [2020-07-17 13:29:36,593 INFO L226 Difference]: Without dead ends: 29 [2020-07-17 13:29:36,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 13:29:36,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-17 13:29:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-17 13:29:36,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-17 13:29:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-07-17 13:29:36,659 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-07-17 13:29:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:29:36,660 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-07-17 13:29:36,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 13:29:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-17 13:29:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 13:29:36,662 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:29:36,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:29:36,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:29:36,664 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:29:36,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:29:36,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-07-17 13:29:36,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:29:36,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290942685] [2020-07-17 13:29:36,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:29:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:36,791 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 13:29:36,792 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:29:36,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290942685] [2020-07-17 13:29:36,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:29:36,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 13:29:36,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012733118] [2020-07-17 13:29:36,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 13:29:36,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:29:36,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 13:29:36,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:29:36,796 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2020-07-17 13:29:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:29:36,959 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-07-17 13:29:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 13:29:36,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-07-17 13:29:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:29:36,962 INFO L225 Difference]: With dead ends: 52 [2020-07-17 13:29:36,962 INFO L226 Difference]: Without dead ends: 42 [2020-07-17 13:29:36,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-07-17 13:29:36,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-17 13:29:36,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-07-17 13:29:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-17 13:29:36,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-07-17 13:29:36,977 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2020-07-17 13:29:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:29:36,977 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-07-17 13:29:36,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 13:29:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-07-17 13:29:36,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 13:29:36,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:29:36,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:29:36,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:29:36,980 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:29:36,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:29:36,980 INFO L82 PathProgramCache]: Analyzing trace with hash -316312164, now seen corresponding path program 1 times [2020-07-17 13:29:36,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:29:36,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42515461] [2020-07-17 13:29:36,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:29:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:37,202 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 13:29:37,203 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:29:37,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42515461] [2020-07-17 13:29:37,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:29:37,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 13:29:37,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260507505] [2020-07-17 13:29:37,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 13:29:37,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:29:37,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 13:29:37,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 13:29:37,208 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 9 states. [2020-07-17 13:29:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:29:37,409 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-07-17 13:29:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 13:29:37,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-07-17 13:29:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:29:37,411 INFO L225 Difference]: With dead ends: 42 [2020-07-17 13:29:37,411 INFO L226 Difference]: Without dead ends: 28 [2020-07-17 13:29:37,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:29:37,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-17 13:29:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-17 13:29:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-17 13:29:37,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-07-17 13:29:37,420 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2020-07-17 13:29:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:29:37,420 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-07-17 13:29:37,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 13:29:37,421 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-07-17 13:29:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 13:29:37,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:29:37,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:29:37,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:29:37,422 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:29:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:29:37,423 INFO L82 PathProgramCache]: Analyzing trace with hash -497457956, now seen corresponding path program 1 times [2020-07-17 13:29:37,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:29:37,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490546706] [2020-07-17 13:29:37,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:29:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:29:37,528 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 13:29:37,529 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:29:37,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490546706] [2020-07-17 13:29:37,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:29:37,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 13:29:37,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194239414] [2020-07-17 13:29:37,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 13:29:37,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:29:37,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 13:29:37,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-17 13:29:37,531 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 8 states. [2020-07-17 13:29:37,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:29:37,645 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-07-17 13:29:37,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 13:29:37,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-07-17 13:29:37,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:29:37,646 INFO L225 Difference]: With dead ends: 28 [2020-07-17 13:29:37,646 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 13:29:37,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-17 13:29:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 13:29:37,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 13:29:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 13:29:37,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 13:29:37,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-07-17 13:29:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:29:37,649 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 13:29:37,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 13:29:37,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 13:29:37,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 13:29:37,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:29:37,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 13:29:38,106 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,106 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,107 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 13:29:38,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,108 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,108 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,108 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,108 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 13:29:38,108 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-07-17 13:29:38,109 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 10 28) the Hoare annotation is: true [2020-07-17 13:29:38,109 INFO L264 CegarLoopResult]: At program point L15(lines 15 19) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (not (= main_~pd~0.base |main_~#d2~0.base|))))) [2020-07-17 13:29:38,109 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-07-17 13:29:38,109 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse3 (= main_~pd~0.base |main_~#d2~0.base|)) (.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and .cse0 .cse1 .cse2 (not |main_#t~short3|) (not .cse3)) (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) .cse3 .cse0 .cse1 .cse2))) [2020-07-17 13:29:38,110 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= main_~pd~0.base |main_~#d2~0.base|) (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,110 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= 0 |main_#t~mem2|) (= main_~pd~0.base |main_~#d2~0.base|) (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,112 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|)) (not (= main_~pd~0.base |main_~#d2~0.base|))) [2020-07-17 13:29:38,112 INFO L264 CegarLoopResult]: At program point L20-4(lines 20 22) the Hoare annotation is: (not |main_#t~short3|) [2020-07-17 13:29:38,112 INFO L264 CegarLoopResult]: At program point L20-5(line 20) the Hoare annotation is: false [2020-07-17 13:29:38,113 INFO L264 CegarLoopResult]: At program point L20-6(line 20) the Hoare annotation is: false [2020-07-17 13:29:38,113 INFO L264 CegarLoopResult]: At program point L20-7(line 20) the Hoare annotation is: (not |main_#t~short3|) [2020-07-17 13:29:38,113 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (= 1 (select |#valid| |main_~#d1~0.base|)) [2020-07-17 13:29:38,113 INFO L264 CegarLoopResult]: At program point L20-8(line 20) the Hoare annotation is: (not |main_#t~short3|) [2020-07-17 13:29:38,113 INFO L264 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,113 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-07-17 13:29:38,114 INFO L271 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-07-17 13:29:38,114 INFO L271 CegarLoopResult]: At program point L12-4(line 12) the Hoare annotation is: true [2020-07-17 13:29:38,114 INFO L271 CegarLoopResult]: At program point L12-5(line 12) the Hoare annotation is: true [2020-07-17 13:29:38,114 INFO L264 CegarLoopResult]: At program point L12-6(line 12) the Hoare annotation is: false [2020-07-17 13:29:38,114 INFO L264 CegarLoopResult]: At program point L12-7(line 12) the Hoare annotation is: false [2020-07-17 13:29:38,114 INFO L264 CegarLoopResult]: At program point L12-8(line 12) the Hoare annotation is: false [2020-07-17 13:29:38,115 INFO L264 CegarLoopResult]: At program point L12-9(line 12) the Hoare annotation is: false [2020-07-17 13:29:38,115 INFO L264 CegarLoopResult]: At program point L21(lines 11 28) the Hoare annotation is: false [2020-07-17 13:29:38,115 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,115 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 10 28) the Hoare annotation is: true [2020-07-17 13:29:38,116 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,116 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: false [2020-07-17 13:29:38,116 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 13:29:38,117 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (not (= main_~pd~0.base |main_~#d2~0.base|))))) [2020-07-17 13:29:38,117 INFO L264 CegarLoopResult]: At program point L18-1(lines 15 19) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and .cse0 .cse1 .cse2 (not (= main_~pd~0.base |main_~#d2~0.base|))) (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) .cse0 .cse1 .cse2))) [2020-07-17 13:29:38,117 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,117 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,117 INFO L264 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 0 |main_~#d2~0.offset|) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-17 13:29:38,118 INFO L264 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 0 |main_~#d2~0.offset|)) (.cse2 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and .cse0 .cse1 (= |main_#t~ite1.offset| 0) .cse2) (and .cse0 .cse1 .cse2 (not (= |main_#t~ite1.base| |main_~#d2~0.base|))))) [2020-07-17 13:29:38,118 INFO L264 CegarLoopResult]: At program point L14-5(line 14) the Hoare annotation is: (let ((.cse3 (= main_~pd~0.base |main_~#d2~0.base|)) (.cse2 (= |main_#t~ite1.base| |main_~#d2~0.base|)) (.cse0 (= 0 |main_~#d2~0.offset|)) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) .cse0 .cse1 (not .cse2) (not .cse3)) (and (= |main_~#d2~0.offset| main_~pd~0.offset) .cse3 .cse2 .cse0 (= |main_#t~ite1.offset| 0) .cse1 (not (= |main_~#d1~0.base| |main_#t~ite1.base|))))) [2020-07-17 13:29:38,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:29:38 BoogieIcfgContainer [2020-07-17 13:29:38,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:29:38,139 INFO L168 Benchmark]: Toolchain (without parser) took 2865.92 ms. Allocated memory was 140.0 MB in the beginning and 243.8 MB in the end (delta: 103.8 MB). Free memory was 104.8 MB in the beginning and 212.3 MB in the end (delta: -107.5 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. [2020-07-17 13:29:38,142 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 140.0 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 13:29:38,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.50 ms. Allocated memory is still 140.0 MB. Free memory was 104.3 MB in the beginning and 94.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:29:38,145 INFO L168 Benchmark]: Boogie Preprocessor took 131.93 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 94.6 MB in the beginning and 183.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-17 13:29:38,150 INFO L168 Benchmark]: RCFGBuilder took 285.20 ms. Allocated memory is still 205.0 MB. Free memory was 182.6 MB in the beginning and 166.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-07-17 13:29:38,152 INFO L168 Benchmark]: TraceAbstraction took 2204.33 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 166.3 MB in the beginning and 212.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 108.7 MB. Max. memory is 7.1 GB. [2020-07-17 13:29:38,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 140.0 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.50 ms. Allocated memory is still 140.0 MB. Free memory was 104.3 MB in the beginning and 94.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.93 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 94.6 MB in the beginning and 183.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.20 ms. Allocated memory is still 205.0 MB. Free memory was 182.6 MB in the beginning and 166.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2204.33 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 166.3 MB in the beginning and 212.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 108.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 10]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 133 SDslu, 244 SDs, 0 SdLazy, 230 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 62 NumberOfFragments, 442 HoareAnnotationTreeSize, 45 FomulaSimplifications, 211 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.3s 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...