/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 0.1.25-72570d3 [2020-08-22 19:05:45,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:05:45,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:05:45,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:05:45,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:05:45,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:05:45,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:05:45,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:05:45,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:05:45,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:05:45,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:05:45,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:05:45,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:05:45,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:05:45,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:05:45,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:05:45,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:05:45,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:05:45,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:05:45,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:05:45,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:05:45,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:05:45,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:05:45,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:05:45,243 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:05:45,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:05:45,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:05:45,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:05:45,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:05:45,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:05:45,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:05:45,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:05:45,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:05:45,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:05:45,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:05:45,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:05:45,246 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:05:45,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:05:45,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:05:45,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:05:45,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:05:45,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:05:45,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:05:45,247 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:05:45,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:05:45,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:05:45,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:05:45,583 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:05:45,584 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:05:45,584 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test29-2.c [2020-08-22 19:05:45,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ac3effe/b2c79766eba44219afafe67bb41c52f6/FLAG61069d2f1 [2020-08-22 19:05:46,064 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:05:46,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test29-2.c [2020-08-22 19:05:46,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ac3effe/b2c79766eba44219afafe67bb41c52f6/FLAG61069d2f1 [2020-08-22 19:05:46,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ac3effe/b2c79766eba44219afafe67bb41c52f6 [2020-08-22 19:05:46,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:05:46,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:05:46,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:05:46,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:05:46,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:05:46,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f08e484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46, skipping insertion in model container [2020-08-22 19:05:46,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:05:46,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:05:46,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:05:46,650 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:05:46,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:05:46,678 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:05:46,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46 WrapperNode [2020-08-22 19:05:46,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:05:46,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:05:46,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:05:46,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:05:46,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (1/1) ... [2020-08-22 19:05:46,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:05:46,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:05:46,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:05:46,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:05:46,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (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 [2020-08-22 19:05:46,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:05:46,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:05:46,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:05:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:05:47,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:05:47,126 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 19:05:47,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:05:47 BoogieIcfgContainer [2020-08-22 19:05:47,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:05:47,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:05:47,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:05:47,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:05:47,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:05:46" (1/3) ... [2020-08-22 19:05:47,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc68021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:05:47, skipping insertion in model container [2020-08-22 19:05:47,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:46" (2/3) ... [2020-08-22 19:05:47,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc68021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:05:47, skipping insertion in model container [2020-08-22 19:05:47,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:05:47" (3/3) ... [2020-08-22 19:05:47,140 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-2.c [2020-08-22 19:05:47,153 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:05:47,161 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:05:47,178 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:05:47,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:05:47,204 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:05:47,205 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:05:47,205 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:05:47,205 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:05:47,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:05:47,205 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:05:47,205 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:05:47,222 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-08-22 19:05:47,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 19:05:47,236 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:47,237 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] [2020-08-22 19:05:47,238 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:47,246 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-08-22 19:05:47,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:47,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996901266] [2020-08-22 19:05:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:47,320 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:47,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:05:47,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996901266] [2020-08-22 19:05:47,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:47,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 19:05:47,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610639612] [2020-08-22 19:05:47,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 19:05:47,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:47,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 19:05:47,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 19:05:47,502 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-08-22 19:05:47,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:47,639 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-08-22 19:05:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 19:05:47,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-08-22 19:05:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:47,652 INFO L225 Difference]: With dead ends: 54 [2020-08-22 19:05:47,652 INFO L226 Difference]: Without dead ends: 29 [2020-08-22 19:05:47,656 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 [2020-08-22 19:05:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-08-22 19:05:47,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-08-22 19:05:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-08-22 19:05:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-08-22 19:05:47,698 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-08-22 19:05:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:47,699 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-08-22 19:05:47,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 19:05:47,699 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-08-22 19:05:47,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 19:05:47,700 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:47,701 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] [2020-08-22 19:05:47,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:05:47,702 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:47,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:47,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-08-22 19:05:47,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:47,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333627052] [2020-08-22 19:05:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:47,706 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:05:47,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333627052] [2020-08-22 19:05:47,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:47,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:05:47,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165025403] [2020-08-22 19:05:47,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:05:47,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:47,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:05:47,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:05:47,834 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2020-08-22 19:05:47,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:47,978 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-08-22 19:05:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 19:05:47,979 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-08-22 19:05:47,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:47,980 INFO L225 Difference]: With dead ends: 52 [2020-08-22 19:05:47,980 INFO L226 Difference]: Without dead ends: 42 [2020-08-22 19:05:47,982 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 [2020-08-22 19:05:47,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-08-22 19:05:47,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-08-22 19:05:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-22 19:05:47,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-08-22 19:05:47,995 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2020-08-22 19:05:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:47,996 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-08-22 19:05:47,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:05:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-08-22 19:05:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 19:05:47,997 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:47,997 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] [2020-08-22 19:05:47,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:05:47,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:47,999 INFO L82 PathProgramCache]: Analyzing trace with hash -316312164, now seen corresponding path program 1 times [2020-08-22 19:05:47,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:47,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349892224] [2020-08-22 19:05:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:48,001 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:05:48,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349892224] [2020-08-22 19:05:48,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:48,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:05:48,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795665710] [2020-08-22 19:05:48,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:05:48,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:48,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:05:48,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:05:48,108 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 8 states. [2020-08-22 19:05:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:48,267 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-08-22 19:05:48,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 19:05:48,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-08-22 19:05:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:48,269 INFO L225 Difference]: With dead ends: 42 [2020-08-22 19:05:48,269 INFO L226 Difference]: Without dead ends: 28 [2020-08-22 19:05:48,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:05:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-08-22 19:05:48,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-08-22 19:05:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-22 19:05:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-08-22 19:05:48,278 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2020-08-22 19:05:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:48,278 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-08-22 19:05:48,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:05:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-08-22 19:05:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 19:05:48,280 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:48,280 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] [2020-08-22 19:05:48,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:05:48,280 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:48,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:48,281 INFO L82 PathProgramCache]: Analyzing trace with hash -497457956, now seen corresponding path program 1 times [2020-08-22 19:05:48,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:48,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804242212] [2020-08-22 19:05:48,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:48,283 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:48,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:05:48,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804242212] [2020-08-22 19:05:48,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:48,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:05:48,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077271350] [2020-08-22 19:05:48,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:05:48,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:48,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:05:48,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:05:48,415 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 8 states. [2020-08-22 19:05:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:48,537 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-08-22 19:05:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 19:05:48,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-08-22 19:05:48,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:48,538 INFO L225 Difference]: With dead ends: 28 [2020-08-22 19:05:48,538 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:05:48,539 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 [2020-08-22 19:05:48,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:05:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:05:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:05:48,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:05:48,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-08-22 19:05:48,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:48,540 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:05:48,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:05:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:05:48,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:05:48,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:05:48,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:05:48,900 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,901 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,901 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,902 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|)) [2020-08-22 19:05:48,902 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,902 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,903 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,903 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,903 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:05:48,903 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 11 29) the Hoare annotation is: true [2020-08-22 19:05:48,904 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse1) (and .cse0 (not (= main_~pd~0.base |main_~#d2~0.base|)) .cse1))) [2020-08-22 19:05:48,904 INFO L264 CegarLoopResult]: At program point L19-1(lines 16 20) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 (not (= main_~pd~0.base |main_~#d2~0.base|)) .cse1) (and .cse0 (= |main_~#d2~0.offset| main_~pd~0.offset) (= (select (select |#memory_int| |main_~#d2~0.base|) |main_~#d2~0.offset|) 0) .cse1))) [2020-08-22 19:05:48,904 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,905 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,905 INFO L264 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,905 INFO L264 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 .cse1 (not (= |main_#t~ite1.base| |main_~#d2~0.base|))) (and .cse0 (= |main_#t~ite1.offset| |main_~#d2~0.offset|) .cse1))) [2020-08-22 19:05:48,906 INFO L264 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= main_~pd~0.base |main_~#d2~0.base|)) (.cse3 (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) (.cse2 (= |main_#t~ite1.base| |main_~#d2~0.base|))) (or (and .cse0 (= |main_#t~ite1.offset| |main_~#d2~0.offset|) (= |main_~#d2~0.offset| main_~pd~0.offset) .cse1 .cse2 .cse3) (and .cse0 (not .cse1) .cse3 (not .cse2)))) [2020-08-22 19:05:48,906 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: false [2020-08-22 19:05:48,906 INFO L264 CegarLoopResult]: At program point L16(lines 16 20) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse1) (and .cse0 (not (= main_~pd~0.base |main_~#d2~0.base|)) .cse1))) [2020-08-22 19:05:48,906 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-08-22 19:05:48,907 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |main_~#d1~0.base|) 1)) (.cse1 (= main_~pd~0.base |main_~#d2~0.base|)) (.cse2 (not (= |main_~#d1~0.base| |main_~#d2~0.base|)))) (or (and .cse0 (= |main_~#d2~0.offset| main_~pd~0.offset) .cse1 (= (select (select |#memory_int| |main_~#d2~0.base|) |main_~#d2~0.offset|) 0) .cse2) (and .cse0 (not |main_#t~short3|) (not .cse1) .cse2))) [2020-08-22 19:05:48,907 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |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|) 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,907 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (= |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|) 0) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,908 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= main_~pd~0.base |main_~#d2~0.base|)) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,908 INFO L264 CegarLoopResult]: At program point L21-4(lines 21 23) the Hoare annotation is: (not |main_#t~short3|) [2020-08-22 19:05:48,908 INFO L264 CegarLoopResult]: At program point L21-5(line 21) the Hoare annotation is: false [2020-08-22 19:05:48,908 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: false [2020-08-22 19:05:48,908 INFO L264 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: (not |main_#t~short3|) [2020-08-22 19:05:48,909 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (= (select |#valid| |main_~#d1~0.base|) 1) [2020-08-22 19:05:48,909 INFO L264 CegarLoopResult]: At program point L21-8(line 21) the Hoare annotation is: (not |main_#t~short3|) [2020-08-22 19:05:48,909 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 11 29) the Hoare annotation is: true [2020-08-22 19:05:48,909 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,910 INFO L271 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: true [2020-08-22 19:05:48,910 INFO L271 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: true [2020-08-22 19:05:48,910 INFO L271 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: true [2020-08-22 19:05:48,910 INFO L271 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: true [2020-08-22 19:05:48,910 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-08-22 19:05:48,911 INFO L264 CegarLoopResult]: At program point L13-7(line 13) the Hoare annotation is: false [2020-08-22 19:05:48,911 INFO L264 CegarLoopResult]: At program point L13-8(line 13) the Hoare annotation is: false [2020-08-22 19:05:48,911 INFO L264 CegarLoopResult]: At program point L13-9(line 13) the Hoare annotation is: false [2020-08-22 19:05:48,911 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) the Hoare annotation is: false [2020-08-22 19:05:48,912 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-08-22 19:05:48,912 INFO L264 CegarLoopResult]: At program point L22(lines 12 29) the Hoare annotation is: false [2020-08-22 19:05:48,912 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,912 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (= (select |#valid| |main_~#d1~0.base|) 1) (not (= |main_~#d1~0.base| |main_~#d2~0.base|))) [2020-08-22 19:05:48,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:05:48 BoogieIcfgContainer [2020-08-22 19:05:48,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:05:48,929 INFO L168 Benchmark]: Toolchain (without parser) took 2500.10 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 103.2 MB in the beginning and 103.5 MB in the end (delta: -298.5 kB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:48,930 INFO L168 Benchmark]: CDTParser took 1.27 ms. Allocated memory is still 146.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:05:48,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.82 ms. Allocated memory is still 146.3 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:48,932 INFO L168 Benchmark]: Boogie Preprocessor took 127.91 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 93.1 MB in the beginning and 180.9 MB in the end (delta: -87.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:48,933 INFO L168 Benchmark]: RCFGBuilder took 323.63 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 164.4 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:48,934 INFO L168 Benchmark]: TraceAbstraction took 1793.79 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 163.8 MB in the beginning and 103.5 MB in the end (delta: 60.2 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:48,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27 ms. Allocated memory is still 146.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.82 ms. Allocated memory is still 146.3 MB. Free memory was 103.0 MB in the beginning and 93.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.91 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 93.1 MB in the beginning and 180.9 MB in the end (delta: -87.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 323.63 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 164.4 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1793.79 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 163.8 MB in the beginning and 103.5 MB in the end (delta: 60.2 MB). Peak memory consumption was 92.7 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: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 108 SDslu, 246 SDs, 0 SdLazy, 227 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s 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, 371 HoareAnnotationTreeSize, 45 FomulaSimplifications, 206 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 29 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...