/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/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:05:20,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:05:20,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:05:20,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:05:20,947 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 19:05:20,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:05:20,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:05:20,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:05:20,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:05:20,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:05:20,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:05:20,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:05:20,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:05:20,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:05:20,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:05:20,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:05:20,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:05:20,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:05:20,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:05:20,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:05:20,964 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:05:20,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:05:20,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:05:20,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:05:20,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:05:20,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:05:20,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:05:20,965 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:05:21,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:05:21,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:05:21,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:05:21,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:05:21,348 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:05:21,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-08-22 19:05:21,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e16f99a/ff071f737bb642739544fbb5b797333c/FLAG9cbd28d68 [2020-08-22 19:05:22,068 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:05:22,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c [2020-08-22 19:05:22,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e16f99a/ff071f737bb642739544fbb5b797333c/FLAG9cbd28d68 [2020-08-22 19:05:22,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e16f99a/ff071f737bb642739544fbb5b797333c [2020-08-22 19:05:22,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:05:22,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:05:22,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:05:22,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:05:22,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:05:22,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ef95ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22, skipping insertion in model container [2020-08-22 19:05:22,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:05:22,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:05:22,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:05:22,716 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:05:22,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:05:22,761 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:05:22,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22 WrapperNode [2020-08-22 19:05:22,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:05:22,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:05:22,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:05:22,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:05:22,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (1/1) ... [2020-08-22 19:05:22,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:05:22,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:05:22,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:05:22,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:05:22,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (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 19:05:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:05:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:05:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-08-22 19:05:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:05:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:05:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:05:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 19:05:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-08-22 19:05:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:05:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:05:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 19:05:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:05:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:05:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:05:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:05:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:05:23,391 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:05:23,392 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 19:05:23,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:05:23 BoogieIcfgContainer [2020-08-22 19:05:23,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:05:23,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:05:23,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:05:23,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:05:23,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:05:22" (1/3) ... [2020-08-22 19:05:23,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a164e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:05:23, skipping insertion in model container [2020-08-22 19:05:23,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:22" (2/3) ... [2020-08-22 19:05:23,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a164e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:05:23, skipping insertion in model container [2020-08-22 19:05:23,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:05:23" (3/3) ... [2020-08-22 19:05:23,411 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2020-08-22 19:05:23,428 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:05:23,439 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:05:23,459 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:05:23,501 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:05:23,503 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:05:23,503 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:05:23,504 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:05:23,504 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:05:23,504 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:05:23,504 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:05:23,504 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:05:23,524 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-08-22 19:05:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-22 19:05:23,540 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:23,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:05:23,542 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:23,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:23,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1040052544, now seen corresponding path program 1 times [2020-08-22 19:05:23,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:23,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603591167] [2020-08-22 19:05:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:23,634 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:23,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:23,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:05:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:23,999 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 19:05:24,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603591167] [2020-08-22 19:05:24,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:24,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:05:24,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467553076] [2020-08-22 19:05:24,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:05:24,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:24,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:05:24,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:05:24,047 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states. [2020-08-22 19:05:24,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:24,430 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2020-08-22 19:05:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 19:05:24,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-22 19:05:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:24,449 INFO L225 Difference]: With dead ends: 93 [2020-08-22 19:05:24,450 INFO L226 Difference]: Without dead ends: 59 [2020-08-22 19:05:24,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:05:24,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-22 19:05:24,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-08-22 19:05:24,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-22 19:05:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-08-22 19:05:24,535 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 43 [2020-08-22 19:05:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:24,536 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-08-22 19:05:24,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:05:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-08-22 19:05:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 19:05:24,539 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:24,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:05:24,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:05:24,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:24,541 INFO L82 PathProgramCache]: Analyzing trace with hash -981249608, now seen corresponding path program 1 times [2020-08-22 19:05:24,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:24,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155530900] [2020-08-22 19:05:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:24,546 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:24,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:24,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:05:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:24,776 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 19:05:24,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155530900] [2020-08-22 19:05:24,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:24,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:05:24,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62766994] [2020-08-22 19:05:24,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:05:24,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:24,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:05:24,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:05:24,781 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-08-22 19:05:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:25,024 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2020-08-22 19:05:25,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:05:25,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-08-22 19:05:25,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:25,027 INFO L225 Difference]: With dead ends: 75 [2020-08-22 19:05:25,028 INFO L226 Difference]: Without dead ends: 59 [2020-08-22 19:05:25,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:05:25,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-22 19:05:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-08-22 19:05:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-22 19:05:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-08-22 19:05:25,047 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 46 [2020-08-22 19:05:25,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:25,048 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-08-22 19:05:25,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:05:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-08-22 19:05:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 19:05:25,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:25,051 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, 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 19:05:25,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:05:25,052 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:25,053 INFO L82 PathProgramCache]: Analyzing trace with hash 176769226, now seen corresponding path program 1 times [2020-08-22 19:05:25,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:25,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101453157] [2020-08-22 19:05:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:25,057 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:25,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:05:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:25,242 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 19:05:25,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101453157] [2020-08-22 19:05:25,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:25,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:05:25,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415591997] [2020-08-22 19:05:25,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:05:25,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:25,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:05:25,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:05:25,246 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 8 states. [2020-08-22 19:05:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:25,512 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-08-22 19:05:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 19:05:25,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-08-22 19:05:25,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:25,514 INFO L225 Difference]: With dead ends: 61 [2020-08-22 19:05:25,515 INFO L226 Difference]: Without dead ends: 55 [2020-08-22 19:05:25,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 19:05:25,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-08-22 19:05:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-08-22 19:05:25,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-22 19:05:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-08-22 19:05:25,529 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49 [2020-08-22 19:05:25,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:25,530 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-08-22 19:05:25,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:05:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-08-22 19:05:25,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 19:05:25,531 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:25,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:05:25,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:05:25,532 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:25,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:25,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1988535102, now seen corresponding path program 1 times [2020-08-22 19:05:25,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:25,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657982815] [2020-08-22 19:05:25,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:25,535 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:25,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:25,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:05:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:25,710 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 19:05:25,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657982815] [2020-08-22 19:05:25,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:25,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:05:25,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383549763] [2020-08-22 19:05:25,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:05:25,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:25,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:05:25,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:05:25,713 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 6 states. [2020-08-22 19:05:25,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:25,923 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-08-22 19:05:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 19:05:25,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-08-22 19:05:25,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:25,927 INFO L225 Difference]: With dead ends: 55 [2020-08-22 19:05:25,927 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:05:25,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:05:25,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:05:25,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:05:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:05:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:05:25,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-08-22 19:05:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:25,937 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:05:25,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:05:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:05:25,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:05:25,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:05:25,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:05:26,900 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,900 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,901 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2020-08-22 19:05:26,901 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 19:05:26,902 INFO L271 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-08-22 19:05:26,902 INFO L271 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: true [2020-08-22 19:05:26,902 INFO L271 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: true [2020-08-22 19:05:26,903 INFO L271 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-08-22 19:05:26,903 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,903 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 7 10) the Hoare annotation is: true [2020-08-22 19:05:26,903 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-08-22 19:05:26,903 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-08-22 19:05:26,904 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-08-22 19:05:26,904 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-08-22 19:05:26,904 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-08-22 19:05:26,904 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-08-22 19:05:26,904 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 7 10) the Hoare annotation is: true [2020-08-22 19:05:26,904 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,905 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,905 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,905 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:05:26,905 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: false [2020-08-22 19:05:26,907 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 12 32) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-08-22 19:05:26,907 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,907 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,908 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,908 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,908 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,908 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,909 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,909 INFO L264 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,909 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,909 INFO L264 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,910 INFO L264 CegarLoopResult]: At program point L19-6(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,910 INFO L264 CegarLoopResult]: At program point L19-7(line 19) the Hoare annotation is: false [2020-08-22 19:05:26,910 INFO L264 CegarLoopResult]: At program point L19-8(line 19) the Hoare annotation is: false [2020-08-22 19:05:26,910 INFO L264 CegarLoopResult]: At program point L19-9(line 19) the Hoare annotation is: false [2020-08-22 19:05:26,911 INFO L264 CegarLoopResult]: At program point L19-10(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,911 INFO L264 CegarLoopResult]: At program point L19-11(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,911 INFO L264 CegarLoopResult]: At program point L19-12(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,911 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-08-22 19:05:26,914 INFO L264 CegarLoopResult]: At program point L24(lines 24 26) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (= |main_#t~mem10| 60) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,914 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: false [2020-08-22 19:05:26,915 INFO L264 CegarLoopResult]: At program point L24-2(line 24) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-08-22 19:05:26,915 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,915 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,915 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,915 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false [2020-08-22 19:05:26,916 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,916 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,916 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,916 INFO L264 CegarLoopResult]: At program point L17-3(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,916 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-08-22 19:05:26,919 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 12 32) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-08-22 19:05:26,919 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-08-22 19:05:26,919 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-08-22 19:05:26,919 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-08-22 19:05:26,919 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-08-22 19:05:26,920 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: false [2020-08-22 19:05:26,920 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-08-22 19:05:26,920 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) the Hoare annotation is: false [2020-08-22 19:05:26,920 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-08-22 19:05:26,921 INFO L264 CegarLoopResult]: At program point L18(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,921 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,921 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,921 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-08-22 19:05:26,921 INFO L264 CegarLoopResult]: At program point L18-4(lines 18 19) the Hoare annotation is: false [2020-08-22 19:05:26,922 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-08-22 19:05:26,922 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-08-22 19:05:26,922 INFO L264 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-08-22 19:05:26,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:05:26 BoogieIcfgContainer [2020-08-22 19:05:26,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:05:26,975 INFO L168 Benchmark]: Toolchain (without parser) took 4513.35 ms. Allocated memory was 144.7 MB in the beginning and 248.5 MB in the end (delta: 103.8 MB). Free memory was 100.9 MB in the beginning and 116.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:26,978 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.2 MB in the beginning and 118.8 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 19:05:26,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.84 ms. Allocated memory is still 144.7 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:26,984 INFO L168 Benchmark]: Boogie Preprocessor took 154.48 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 91.0 MB in the beginning and 179.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:26,993 INFO L168 Benchmark]: RCFGBuilder took 479.57 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 160.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:26,994 INFO L168 Benchmark]: TraceAbstraction took 3565.41 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 159.5 MB in the beginning and 116.0 MB in the end (delta: 43.5 MB). Peak memory consumption was 111.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:27,003 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 119.2 MB in the beginning and 118.8 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 303.84 ms. Allocated memory is still 144.7 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 154.48 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 91.0 MB in the beginning and 179.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.57 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 160.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3565.41 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 159.5 MB in the beginning and 116.0 MB in the end (delta: 43.5 MB). Peak memory consumption was 111.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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: 7]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 166 SDslu, 399 SDs, 0 SdLazy, 383 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 70 PreInvPairs, 87 NumberOfFragments, 618 HoareAnnotationTreeSize, 70 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 314 FormulaSimplificationTreeSizeReductionInter, 0.7s 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...