/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/test29-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:24:40,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:24:40,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:24:40,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:24:40,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:24:40,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:24:40,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:24:40,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:24:40,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:24:40,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:24:40,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:24:40,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:24:40,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:24:40,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:24:40,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:24:40,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:24:40,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:24:40,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:24:40,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:24:40,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:24:40,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:24:40,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:24:40,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:24:40,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:24:40,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:24:40,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:24:40,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:24:40,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:24:40,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:24:40,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:24:40,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:24:40,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:24:40,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:24:40,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:24:40,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:24:40,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:24:40,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:24:40,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:24:40,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:24:40,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:24:40,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:24:40,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:24:40,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:24:40,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:24:40,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:24:40,345 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:24:40,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:24:40,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:24:40,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:24:40,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:24:40,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:24:40,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:24:40,349 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:24:40,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:24:40,349 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:24:40,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:24:40,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:24:40,350 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:24:40,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:24:40,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:24:40,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:24:40,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:24:40,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:24:40,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:24:40,353 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:24:40,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:24:40,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:24:40,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:24:40,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:24:40,654 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:24:40,655 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test29-2.c [2020-07-07 13:24:40,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91bce0c02/5e76f68b2c344d4eab7b08e81e6c2038/FLAG3bfe664aa [2020-07-07 13:24:41,227 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:24:41,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test29-2.c [2020-07-07 13:24:41,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91bce0c02/5e76f68b2c344d4eab7b08e81e6c2038/FLAG3bfe664aa [2020-07-07 13:24:41,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91bce0c02/5e76f68b2c344d4eab7b08e81e6c2038 [2020-07-07 13:24:41,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:24:41,613 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:24:41,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:41,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:24:41,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:24:41,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:41,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7822e28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41, skipping insertion in model container [2020-07-07 13:24:41,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:41,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:24:41,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:24:41,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:41,897 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:24:41,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:41,925 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:24:41,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41 WrapperNode [2020-07-07 13:24:41,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:41,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:24:41,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:24:41,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:24:42,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (1/1) ... [2020-07-07 13:24:42,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:24:42,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:24:42,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:24:42,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:24:42,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (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 [2020-07-07 13:24:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:24:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:24:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:24:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:24:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:24:42,401 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:24:42,401 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 13:24:42,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:42 BoogieIcfgContainer [2020-07-07 13:24:42,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:24:42,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:24:42,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:24:42,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:24:42,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:24:41" (1/3) ... [2020-07-07 13:24:42,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75237c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:42, skipping insertion in model container [2020-07-07 13:24:42,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:41" (2/3) ... [2020-07-07 13:24:42,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75237c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:42, skipping insertion in model container [2020-07-07 13:24:42,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:42" (3/3) ... [2020-07-07 13:24:42,416 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-2.c [2020-07-07 13:24:42,429 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:24:42,439 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:24:42,455 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:24:42,479 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:24:42,479 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:24:42,480 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:24:42,480 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:24:42,480 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:24:42,484 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:24:42,485 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:24:42,485 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:24:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-07 13:24:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 13:24:42,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:42,516 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] [2020-07-07 13:24:42,517 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:42,524 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-07-07 13:24:42,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:42,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248021270] [2020-07-07 13:24:42,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:42,769 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:42,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248021270] [2020-07-07 13:24:42,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:42,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:24:42,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725319884] [2020-07-07 13:24:42,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:24:42,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:42,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:24:42,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:24:42,801 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-07-07 13:24:42,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:42,965 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-07-07 13:24:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:24:42,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-07 13:24:42,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:42,980 INFO L225 Difference]: With dead ends: 54 [2020-07-07 13:24:42,980 INFO L226 Difference]: Without dead ends: 29 [2020-07-07 13:24:42,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:24:43,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-07 13:24:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-07 13:24:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-07 13:24:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-07-07 13:24:43,024 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-07-07 13:24:43,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:43,025 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-07-07 13:24:43,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:24:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-07 13:24:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:24:43,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:43,027 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] [2020-07-07 13:24:43,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:24:43,028 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:43,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-07-07 13:24:43,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:43,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763105283] [2020-07-07 13:24:43,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:43,187 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:43,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763105283] [2020-07-07 13:24:43,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:43,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 13:24:43,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397418318] [2020-07-07 13:24:43,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 13:24:43,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:43,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 13:24:43,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:24:43,191 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2020-07-07 13:24:43,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:43,348 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-07-07 13:24:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 13:24:43,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-07-07 13:24:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:43,351 INFO L225 Difference]: With dead ends: 52 [2020-07-07 13:24:43,351 INFO L226 Difference]: Without dead ends: 42 [2020-07-07 13:24:43,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:24:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-07 13:24:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-07-07 13:24:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-07 13:24:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-07-07 13:24:43,370 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2020-07-07 13:24:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:43,371 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-07-07 13:24:43,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 13:24:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-07-07 13:24:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:24:43,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:43,373 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] [2020-07-07 13:24:43,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:24:43,374 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:43,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:43,374 INFO L82 PathProgramCache]: Analyzing trace with hash -316312164, now seen corresponding path program 1 times [2020-07-07 13:24:43,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:43,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472254168] [2020-07-07 13:24:43,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:43,568 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:43,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472254168] [2020-07-07 13:24:43,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:43,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:24:43,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635665133] [2020-07-07 13:24:43,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:24:43,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:43,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:24:43,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:24:43,573 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 9 states. [2020-07-07 13:24:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:43,728 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-07-07 13:24:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 13:24:43,729 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-07-07 13:24:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:43,730 INFO L225 Difference]: With dead ends: 42 [2020-07-07 13:24:43,730 INFO L226 Difference]: Without dead ends: 28 [2020-07-07 13:24:43,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-07 13:24:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-07 13:24:43,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-07 13:24:43,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-07 13:24:43,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-07-07 13:24:43,740 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2020-07-07 13:24:43,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:43,740 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-07-07 13:24:43,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:24:43,740 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-07-07 13:24:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:24:43,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:43,742 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] [2020-07-07 13:24:43,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:24:43,742 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:43,743 INFO L82 PathProgramCache]: Analyzing trace with hash -497457956, now seen corresponding path program 1 times [2020-07-07 13:24:43,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:43,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6863480] [2020-07-07 13:24:43,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:43,836 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:43,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6863480] [2020-07-07 13:24:43,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:43,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:24:43,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722388212] [2020-07-07 13:24:43,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:24:43,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:43,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:24:43,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:24:43,839 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2020-07-07 13:24:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:43,949 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-07-07 13:24:43,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 13:24:43,950 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-07-07 13:24:43,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:43,950 INFO L225 Difference]: With dead ends: 28 [2020-07-07 13:24:43,951 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:24:43,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:24:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:24:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:24:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:24:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:24:43,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-07-07 13:24:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:43,953 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:24:43,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:24:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:24:43,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:24:43,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:24:43,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:24:44,297 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,298 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,298 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,298 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)|)) [2020-07-07 13:24:44,299 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,299 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,299 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,299 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,299 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:24:44,300 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 11 29) the Hoare annotation is: true [2020-07-07 13:24:44,300 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1) (and .cse0 .cse1 (= |main_~#d1~0.base| main_~pd~0.base)))) [2020-07-07 13:24:44,301 INFO L264 CegarLoopResult]: At program point L19-1(lines 16 20) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) |main_~#d2~0.offset|)) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1) (and .cse0 .cse1 (= |main_~#d1~0.base| main_~pd~0.base)))) [2020-07-07 13:24:44,302 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,302 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,303 INFO L264 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,305 INFO L264 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_#t~ite1.offset| |main_~#d2~0.offset|) .cse0 (= |main_#t~ite1.base| |main_~#d2~0.base|) .cse1) (and (= |main_~#d1~0.base| |main_#t~ite1.base|) .cse0 .cse1))) [2020-07-07 13:24:44,305 INFO L264 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d1~0.base| |main_#t~ite1.base|) .cse0 .cse1 (= |main_~#d1~0.base| main_~pd~0.base)) (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) (= |main_#t~ite1.offset| |main_~#d2~0.offset|) .cse0 (= |main_#t~ite1.base| |main_~#d2~0.base|) .cse1))) [2020-07-07 13:24:44,306 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: false [2020-07-07 13:24:44,306 INFO L264 CegarLoopResult]: At program point L16(lines 16 20) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1) (and .cse0 .cse1 (= |main_~#d1~0.base| main_~pd~0.base)))) [2020-07-07 13:24:44,306 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-07-07 13:24:44,306 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse0 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse1 (= 1 (select |#valid| |main_~#d1~0.base|)))) (or (and (= |main_~#d2~0.offset| main_~pd~0.offset) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) |main_~#d2~0.offset|)) (= main_~pd~0.base |main_~#d2~0.base|) .cse0 .cse1) (and .cse0 .cse1 (not |main_#t~short3|) (= |main_~#d1~0.base| main_~pd~0.base)))) [2020-07-07 13:24:44,307 INFO L264 CegarLoopResult]: At program point L21-1(line 21) 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|)) (= main_~pd~0.base |main_~#d2~0.base|) (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,307 INFO L264 CegarLoopResult]: At program point L21-2(line 21) 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|)) (= 0 |main_#t~mem2|) (= main_~pd~0.base |main_~#d2~0.base|) (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,307 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|)) (= |main_~#d1~0.base| main_~pd~0.base)) [2020-07-07 13:24:44,307 INFO L264 CegarLoopResult]: At program point L21-4(lines 21 23) the Hoare annotation is: (not |main_#t~short3|) [2020-07-07 13:24:44,308 INFO L264 CegarLoopResult]: At program point L21-5(line 21) the Hoare annotation is: false [2020-07-07 13:24:44,308 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: false [2020-07-07 13:24:44,308 INFO L264 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: (not |main_#t~short3|) [2020-07-07 13:24:44,308 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (= 1 (select |#valid| |main_~#d1~0.base|)) [2020-07-07 13:24:44,308 INFO L271 CegarLoopResult]: At program point L21-8(line 21) the Hoare annotation is: true [2020-07-07 13:24:44,309 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 11 29) the Hoare annotation is: true [2020-07-07 13:24:44,309 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,309 INFO L271 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: true [2020-07-07 13:24:44,309 INFO L271 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: true [2020-07-07 13:24:44,310 INFO L271 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: true [2020-07-07 13:24:44,311 INFO L271 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: true [2020-07-07 13:24:44,311 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-07-07 13:24:44,312 INFO L264 CegarLoopResult]: At program point L13-7(line 13) the Hoare annotation is: false [2020-07-07 13:24:44,312 INFO L264 CegarLoopResult]: At program point L13-8(line 13) the Hoare annotation is: false [2020-07-07 13:24:44,312 INFO L264 CegarLoopResult]: At program point L13-9(line 13) the Hoare annotation is: false [2020-07-07 13:24:44,313 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) the Hoare annotation is: false [2020-07-07 13:24:44,313 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-07 13:24:44,314 INFO L264 CegarLoopResult]: At program point L22(lines 12 29) the Hoare annotation is: false [2020-07-07 13:24:44,314 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,314 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= 1 (select |#valid| |main_~#d1~0.base|))) [2020-07-07 13:24:44,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:24:44 BoogieIcfgContainer [2020-07-07 13:24:44,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:24:44,333 INFO L168 Benchmark]: Toolchain (without parser) took 2718.94 ms. Allocated memory was 145.8 MB in the beginning and 234.4 MB in the end (delta: 88.6 MB). Free memory was 103.4 MB in the beginning and 112.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:44,336 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:24:44,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.41 ms. Allocated memory is still 145.8 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:44,339 INFO L168 Benchmark]: Boogie Preprocessor took 139.71 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.1 MB in the beginning and 181.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:44,344 INFO L168 Benchmark]: RCFGBuilder took 339.62 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 165.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:44,346 INFO L168 Benchmark]: TraceAbstraction took 1922.41 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 164.7 MB in the beginning and 112.6 MB in the end (delta: 52.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:44,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.41 ms. Allocated memory is still 145.8 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.71 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.1 MB in the beginning and 181.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 339.62 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 165.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1922.41 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 164.7 MB in the beginning and 112.6 MB in the end (delta: 52.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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: 12]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 11]: 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 112 SDslu, 231 SDs, 0 SdLazy, 228 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 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, 374 HoareAnnotationTreeSize, 45 FomulaSimplifications, 191 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.2s 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...