/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 0.1.25-3af5e1f [2020-09-04 16:40:44,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:40:44,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:40:44,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 16:40:44,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:40:44,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:40:44,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:40:44,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:40:44,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:40:44,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:40:44,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:40:44,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:40:44,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:40:44,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:40:44,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:40:44,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:40:44,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:40:44,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:40:44,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:40:44,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:40:44,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:40:44,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:40:44,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:40:44,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:40:44,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:40:44,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:40:44,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:40:44,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:40:44,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:40:44,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:40:44,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:40:44,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:40:44,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:40:44,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:40:44,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:40:44,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:40:44,732 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:40:44,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:40:44,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:40:44,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:40:44,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:40:44,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:40:44,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:40:44,734 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:40:45,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:40:45,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:40:45,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:40:45,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:40:45,226 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:40:45,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28-2.c [2020-09-04 16:40:45,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91defe606/fa46d33ae43e4674b8f73f83b097e629/FLAG15a9f173e [2020-09-04 16:40:45,817 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:40:45,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test28-2.c [2020-09-04 16:40:45,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91defe606/fa46d33ae43e4674b8f73f83b097e629/FLAG15a9f173e [2020-09-04 16:40:46,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91defe606/fa46d33ae43e4674b8f73f83b097e629 [2020-09-04 16:40:46,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:40:46,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:40:46,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:46,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:40:46,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:40:46,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472599de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46, skipping insertion in model container [2020-09-04 16:40:46,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:40:46,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:40:46,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:46,483 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:40:46,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:46,523 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:40:46,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46 WrapperNode [2020-09-04 16:40:46,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:46,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:40:46,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:40:46,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:40:46,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... [2020-09-04 16:40:46,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:40:46,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:40:46,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:40:46,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:40:46,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:40:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:40:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:40:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:40:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:40:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:40:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:40:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:40:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:40:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:40:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:40:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:40:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:40:47,028 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:40:47,028 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:40:47,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:47 BoogieIcfgContainer [2020-09-04 16:40:47,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:40:47,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:40:47,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:40:47,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:40:47,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:46" (1/3) ... [2020-09-04 16:40:47,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf095d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:47, skipping insertion in model container [2020-09-04 16:40:47,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:46" (2/3) ... [2020-09-04 16:40:47,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf095d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:47, skipping insertion in model container [2020-09-04 16:40:47,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:47" (3/3) ... [2020-09-04 16:40:47,045 INFO L109 eAbstractionObserver]: Analyzing ICFG test28-2.c [2020-09-04 16:40:47,062 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:40:47,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:40:47,100 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:40:47,131 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:40:47,131 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:40:47,131 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:40:47,131 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:40:47,131 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:40:47,132 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:40:47,132 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:40:47,132 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:40:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-04 16:40:47,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-04 16:40:47,167 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:47,168 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] [2020-09-04 16:40:47,169 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:47,176 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-09-04 16:40:47,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:47,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105140650] [2020-09-04 16:40:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:47,258 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:47,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:47,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105140650] [2020-09-04 16:40:47,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:47,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:40:47,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296856069] [2020-09-04 16:40:47,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:40:47,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:47,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:40:47,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:40:47,486 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-09-04 16:40:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:47,647 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-09-04 16:40:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:40:47,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-04 16:40:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:47,664 INFO L225 Difference]: With dead ends: 54 [2020-09-04 16:40:47,664 INFO L226 Difference]: Without dead ends: 29 [2020-09-04 16:40:47,669 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 [2020-09-04 16:40:47,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-04 16:40:47,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-04 16:40:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-04 16:40:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-09-04 16:40:47,714 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-09-04 16:40:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:47,715 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-09-04 16:40:47,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:40:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-09-04 16:40:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-04 16:40:47,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:47,716 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] [2020-09-04 16:40:47,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:40:47,717 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:47,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:47,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-09-04 16:40:47,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:47,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210686960] [2020-09-04 16:40:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:47,721 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:47,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:47,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210686960] [2020-09-04 16:40:47,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:47,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 16:40:47,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309931893] [2020-09-04 16:40:47,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 16:40:47,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:47,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 16:40:47,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:40:47,848 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2020-09-04 16:40:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:48,025 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-09-04 16:40:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 16:40:48,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-09-04 16:40:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:48,028 INFO L225 Difference]: With dead ends: 52 [2020-09-04 16:40:48,028 INFO L226 Difference]: Without dead ends: 42 [2020-09-04 16:40:48,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-04 16:40:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-04 16:40:48,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-09-04 16:40:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 16:40:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-09-04 16:40:48,045 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2020-09-04 16:40:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:48,045 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-09-04 16:40:48,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 16:40:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-09-04 16:40:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-04 16:40:48,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:48,047 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] [2020-09-04 16:40:48,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:40:48,048 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:48,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:48,049 INFO L82 PathProgramCache]: Analyzing trace with hash -316312164, now seen corresponding path program 1 times [2020-09-04 16:40:48,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:48,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409256638] [2020-09-04 16:40:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:48,052 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:48,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:48,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409256638] [2020-09-04 16:40:48,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:48,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 16:40:48,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471308703] [2020-09-04 16:40:48,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 16:40:48,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:48,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 16:40:48,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 16:40:48,256 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 9 states. [2020-09-04 16:40:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:48,451 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-09-04 16:40:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 16:40:48,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-09-04 16:40:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:48,453 INFO L225 Difference]: With dead ends: 42 [2020-09-04 16:40:48,453 INFO L226 Difference]: Without dead ends: 28 [2020-09-04 16:40:48,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-09-04 16:40:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-04 16:40:48,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-04 16:40:48,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-04 16:40:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-09-04 16:40:48,462 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2020-09-04 16:40:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:48,463 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-09-04 16:40:48,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 16:40:48,463 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-09-04 16:40:48,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-04 16:40:48,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:48,465 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] [2020-09-04 16:40:48,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:40:48,465 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:48,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:48,466 INFO L82 PathProgramCache]: Analyzing trace with hash -497457956, now seen corresponding path program 1 times [2020-09-04 16:40:48,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:48,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560290476] [2020-09-04 16:40:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:48,468 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:48,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:48,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560290476] [2020-09-04 16:40:48,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:48,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 16:40:48,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901958821] [2020-09-04 16:40:48,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 16:40:48,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:48,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 16:40:48,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:40:48,564 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 8 states. [2020-09-04 16:40:48,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:48,677 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-09-04 16:40:48,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 16:40:48,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-09-04 16:40:48,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:48,678 INFO L225 Difference]: With dead ends: 28 [2020-09-04 16:40:48,679 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:40:48,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-04 16:40:48,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:40:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:40:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:40:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:40:48,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-09-04 16:40:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:48,681 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:40:48,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 16:40:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:40:48,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:40:48,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:40:48,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:40:49,227 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,227 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,228 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,228 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:49,228 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,228 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,229 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,229 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,229 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:40:49,229 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-09-04 16:40:49,230 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 10 28) the Hoare annotation is: true [2020-09-04 16:40:49,230 INFO L264 CegarLoopResult]: At program point L15(lines 15 19) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= |main_~#d2~0.offset| 0)) (.cse2 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (not (= main_~pd~0.base |main_~#d2~0.base|)) .cse2) (and .cse0 .cse1 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse2))) [2020-09-04 16:40:49,230 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-09-04 16:40:49,231 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= |main_~#d2~0.offset| 0)) (.cse2 (= main_~pd~0.base |main_~#d2~0.base|)) (.cse3 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse2 (= (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)) 0) .cse3) (and .cse0 .cse1 (not |main_#t~short3|) (not .cse2) .cse3))) [2020-09-04 16:40:49,231 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) (= (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)) 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,231 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (= |main_~#d2~0.offset| main_~pd~0.offset) (= main_~pd~0.base |main_~#d2~0.base|) (= |main_#t~mem2| 0) (= (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)) 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,232 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= main_~pd~0.base |main_~#d2~0.base|)) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,232 INFO L264 CegarLoopResult]: At program point L20-4(lines 20 22) the Hoare annotation is: (not |main_#t~short3|) [2020-09-04 16:40:49,232 INFO L264 CegarLoopResult]: At program point L20-5(line 20) the Hoare annotation is: false [2020-09-04 16:40:49,232 INFO L264 CegarLoopResult]: At program point L20-6(line 20) the Hoare annotation is: false [2020-09-04 16:40:49,233 INFO L264 CegarLoopResult]: At program point L20-7(line 20) the Hoare annotation is: (not |main_#t~short3|) [2020-09-04 16:40:49,233 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (= (select |#valid| |main_~#d1~0.base|) 1) [2020-09-04 16:40:49,233 INFO L271 CegarLoopResult]: At program point L20-8(line 20) the Hoare annotation is: true [2020-09-04 16:40:49,233 INFO L264 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,234 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-09-04 16:40:49,234 INFO L271 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-09-04 16:40:49,234 INFO L271 CegarLoopResult]: At program point L12-4(line 12) the Hoare annotation is: true [2020-09-04 16:40:49,234 INFO L271 CegarLoopResult]: At program point L12-5(line 12) the Hoare annotation is: true [2020-09-04 16:40:49,234 INFO L264 CegarLoopResult]: At program point L12-6(line 12) the Hoare annotation is: false [2020-09-04 16:40:49,235 INFO L264 CegarLoopResult]: At program point L12-7(line 12) the Hoare annotation is: false [2020-09-04 16:40:49,235 INFO L264 CegarLoopResult]: At program point L12-8(line 12) the Hoare annotation is: false [2020-09-04 16:40:49,235 INFO L264 CegarLoopResult]: At program point L12-9(line 12) the Hoare annotation is: false [2020-09-04 16:40:49,235 INFO L264 CegarLoopResult]: At program point L21(lines 11 28) the Hoare annotation is: false [2020-09-04 16:40:49,236 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,236 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 10 28) the Hoare annotation is: true [2020-09-04 16:40:49,236 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,236 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: false [2020-09-04 16:40:49,237 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-04 16:40:49,237 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= |main_~#d2~0.offset| 0)) (.cse2 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (not (= main_~pd~0.base |main_~#d2~0.base|)) .cse2) (and .cse0 .cse1 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse2))) [2020-09-04 16:40:49,237 INFO L264 CegarLoopResult]: At program point L18-1(lines 15 19) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= |main_~#d2~0.offset| 0)) (.cse2 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (not (= main_~pd~0.base |main_~#d2~0.base|)) .cse2) (and .cse0 .cse1 (= |main_~#d2~0.offset| main_~pd~0.offset) (= (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)) 0) .cse2))) [2020-09-04 16:40:49,238 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,238 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,238 INFO L264 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |main_~#d2~0.offset| 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-09-04 16:40:49,238 INFO L264 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= |main_~#d2~0.offset| 0)) (.cse2 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (= |main_#t~ite1.offset| 0) .cse2) (and .cse0 .cse1 .cse2 (not (= |main_#t~ite1.base| |main_~#d2~0.base|))))) [2020-09-04 16:40:49,239 INFO L264 CegarLoopResult]: At program point L14-5(line 14) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= |main_~#d2~0.offset| 0)) (.cse2 (= main_~pd~0.base |main_~#d2~0.base|)) (.cse4 (= |main_#t~ite1.base| |main_~#d2~0.base|)) (.cse3 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (not .cse2) .cse3 (not .cse4)) (and .cse0 .cse1 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse2 (= |main_#t~ite1.offset| 0) .cse4 .cse3))) [2020-09-04 16:40:49,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:49 BoogieIcfgContainer [2020-09-04 16:40:49,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:40:49,260 INFO L168 Benchmark]: Toolchain (without parser) took 3100.97 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 100.6 MB in the beginning and 83.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:49,262 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 16:40:49,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.69 ms. Allocated memory is still 144.7 MB. Free memory was 100.4 MB in the beginning and 90.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:49,264 INFO L168 Benchmark]: Boogie Preprocessor took 148.24 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 90.5 MB in the beginning and 180.4 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:49,265 INFO L168 Benchmark]: RCFGBuilder took 361.10 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 164.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:49,266 INFO L168 Benchmark]: TraceAbstraction took 2221.52 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 164.1 MB in the beginning and 83.9 MB in the end (delta: 80.2 MB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:49,271 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.69 ms. Allocated memory is still 144.7 MB. Free memory was 100.4 MB in the beginning and 90.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.24 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 90.5 MB in the beginning and 180.4 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.10 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 164.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2221.52 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 164.1 MB in the beginning and 83.9 MB in the end (delta: 80.2 MB). Peak memory consumption was 111.7 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 132 SDslu, 245 SDs, 0 SdLazy, 230 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 12 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, 441 HoareAnnotationTreeSize, 45 FomulaSimplifications, 211 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...