/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:06:17,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:06:17,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:06:17,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 22:06:17,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:06:17,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:06:17,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:06:17,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:06:17,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:06:17,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:06:17,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:06:17,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:06:17,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:06:17,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:06:17,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:06:17,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:06:17,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 22:06:17,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:06:17,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:06:17,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:06:17,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:06:17,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:06:17,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:06:17,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:06:17,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:06:17,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:06:17,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:06:17,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:06:17,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:06:17,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:06:17,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:06:17,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:06:17,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:06:17,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:06:17,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:06:17,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:06:17,443 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:06:17,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:06:17,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:06:17,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:06:17,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:06:17,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:06:17,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:06:17,445 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 22:06:17,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:06:17,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:06:17,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:06:17,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:06:17,976 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:06:17,978 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c [2020-09-04 22:06:18,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a370d7f45/ea30d842035040858de53a7f80d6929d/FLAGcd61aa388 [2020-09-04 22:06:18,643 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:06:18,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test16.c [2020-09-04 22:06:18,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a370d7f45/ea30d842035040858de53a7f80d6929d/FLAGcd61aa388 [2020-09-04 22:06:18,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a370d7f45/ea30d842035040858de53a7f80d6929d [2020-09-04 22:06:18,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:06:18,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:06:18,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:06:18,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:06:19,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:06:19,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:06:18" (1/1) ... [2020-09-04 22:06:19,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cc40f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19, skipping insertion in model container [2020-09-04 22:06:19,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:06:18" (1/1) ... [2020-09-04 22:06:19,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:06:19,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:06:19,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:06:19,317 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:06:19,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:06:19,355 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:06:19,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19 WrapperNode [2020-09-04 22:06:19,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:06:19,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:06:19,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:06:19,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:06:19,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... [2020-09-04 22:06:19,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:06:19,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:06:19,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:06:19,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:06:19,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:06:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:06:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:06:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-09-04 22:06:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:06:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:06:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 22:06:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:06:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:06:19,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:06:19,901 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 22:06:19,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:06:19 BoogieIcfgContainer [2020-09-04 22:06:19,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:06:19,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:06:19,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:06:19,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:06:19,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:06:18" (1/3) ... [2020-09-04 22:06:19,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e730f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:06:19, skipping insertion in model container [2020-09-04 22:06:19,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:19" (2/3) ... [2020-09-04 22:06:19,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e730f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:06:19, skipping insertion in model container [2020-09-04 22:06:19,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:06:19" (3/3) ... [2020-09-04 22:06:19,919 INFO L109 eAbstractionObserver]: Analyzing ICFG test16.c [2020-09-04 22:06:19,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:06:19,944 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:06:19,980 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:06:20,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:06:20,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:06:20,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:06:20,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:06:20,015 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:06:20,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:06:20,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:06:20,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:06:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-09-04 22:06:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-04 22:06:20,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:06:20,053 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] [2020-09-04 22:06:20,054 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:06:20,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:06:20,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2010514145, now seen corresponding path program 1 times [2020-09-04 22:06:20,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:06:20,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682159740] [2020-09-04 22:06:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:06:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:06:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:06:20,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682159740] [2020-09-04 22:06:20,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:06:20,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 22:06:20,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633557203] [2020-09-04 22:06:20,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 22:06:20,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:06:20,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 22:06:20,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-04 22:06:20,849 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 15 states. [2020-09-04 22:06:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:06:21,773 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-09-04 22:06:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 22:06:21,776 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 29 [2020-09-04 22:06:21,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:06:21,788 INFO L225 Difference]: With dead ends: 46 [2020-09-04 22:06:21,789 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 22:06:21,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2020-09-04 22:06:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 22:06:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 22:06:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 22:06:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 22:06:21,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-04 22:06:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:06:21,842 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 22:06:21,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 22:06:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 22:06:21,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 22:06:21,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:06:21,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 22:06:22,379 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-09-04 22:06:23,310 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-09-04 22:06:23,538 INFO L264 CegarLoopResult]: At program point L5-4(line 5) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pa~0.base |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-09-04 22:06:23,539 INFO L264 CegarLoopResult]: At program point L5-5(line 5) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse1 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 .cse1) (= .cse1 |equal_#t~mem0|) (= .cse0 .cse2) (= |equal_#t~mem1| |equal_#t~mem0|))) (not (= .cse2 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,539 INFO L264 CegarLoopResult]: At program point L5-6(line 5) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,540 INFO L264 CegarLoopResult]: At program point equalEXIT(lines 4 12) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,540 INFO L271 CegarLoopResult]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2020-09-04 22:06:23,540 INFO L264 CegarLoopResult]: At program point equalFINAL(lines 4 12) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,541 INFO L264 CegarLoopResult]: At program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pa~0.base |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-09-04 22:06:23,541 INFO L264 CegarLoopResult]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pa~0.base |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-09-04 22:06:23,542 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,542 INFO L264 CegarLoopResult]: At program point L4(lines 4 12) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (not (= .cse0 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= (select (select |#memory_int| equal_~a.base) equal_~a.offset) .cse0) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,542 INFO L264 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (let ((.cse1 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 .cse1) (= .cse1 |equal_#t~mem0|) (= .cse0 .cse2))) (not (= ~pa~0.base |~#a~0.base|)) (not (= .cse2 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,542 INFO L264 CegarLoopResult]: At program point L5-2(lines 5 7) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse1 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 .cse1) (= .cse1 |equal_#t~mem0|) (= .cse0 .cse2) (= |equal_#t~mem1| |equal_#t~mem0|))) (not (= .cse2 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| ~pa~0.base))) [2020-09-04 22:06:23,543 INFO L264 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pa~0.base |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-09-04 22:06:23,543 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:23,543 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 22:06:23,543 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:23,543 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-09-04 22:06:23,543 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 22:06:23,544 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (= (select |#valid| |~#a~0.base|) 1) [2020-09-04 22:06:23,544 INFO L264 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (= (select |#valid| |~#a~0.base|) 1) [2020-09-04 22:06:23,544 INFO L264 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 22:06:23,544 INFO L264 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 22:06:23,544 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pa~0.base |old(~pa~0.base)|) (= ~pb~0.base |old(~pb~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~pb~0.offset |old(~pb~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|)) [2020-09-04 22:06:23,545 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 22:06:23,545 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (= |~#b~0.base| ~pb~0.base) (not (= |~#b~0.base| ~pa~0.base)) (= ~pa~0.base |~#a~0.base|) (= (select |#valid| |~#a~0.base|) 1) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) [2020-09-04 22:06:23,545 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 22:06:23,545 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 22:06:23,545 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (= |~#b~0.base| ~pb~0.base) (not (= |~#b~0.base| ~pa~0.base)) (= ~pa~0.base |~#a~0.base|) (= (select |#valid| |~#a~0.base|) 1) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) [2020-09-04 22:06:23,546 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 28) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~pa~0.base |old(~pa~0.base)|) (= |old(~pa~0.offset)| ~pa~0.offset) (= |old(~pb~0.base)| ~pb~0.base) (= |old(~pb~0.offset)| ~pb~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,546 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 17 28) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,546 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,547 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,547 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 17 28) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,547 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (or (and (= |~#b~0.base| ~pb~0.base) (= (select (select (store |#memory_int| ~pa~0.base (store (select |#memory_int| ~pa~0.base) ~pa~0.offset |main_#t~mem2|)) |~#b~0.base|) |~#b~0.offset|) |main_#t~mem2|) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,547 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#b~0.base| |~#a~0.base|) (and (= |~#b~0.base| ~pb~0.base) (= (select (select (store |#memory_int| ~pa~0.base (store (select |#memory_int| ~pa~0.base) ~pa~0.offset |main_#t~mem2|)) |~#b~0.base|) |~#b~0.offset|) |main_#t~mem2|) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|))) [2020-09-04 22:06:23,548 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,548 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,548 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,548 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 22:06:23,568 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,571 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:06:23 BoogieIcfgContainer [2020-09-04 22:06:23,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:06:23,596 INFO L168 Benchmark]: Toolchain (without parser) took 4601.11 ms. Allocated memory was 145.8 MB in the beginning and 249.0 MB in the end (delta: 103.3 MB). Free memory was 103.4 MB in the beginning and 158.4 MB in the end (delta: -55.0 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:23,597 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 145.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 22:06:23,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.92 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:23,599 INFO L168 Benchmark]: Boogie Preprocessor took 40.92 ms. Allocated memory is still 145.8 MB. Free memory was 93.5 MB in the beginning and 92.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:23,600 INFO L168 Benchmark]: RCFGBuilder took 510.07 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 91.8 MB in the beginning and 167.0 MB in the end (delta: -75.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:23,602 INFO L168 Benchmark]: TraceAbstraction took 3683.58 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 166.3 MB in the beginning and 158.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 117.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:23,607 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 145.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.92 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.92 ms. Allocated memory is still 145.8 MB. Free memory was 93.5 MB in the beginning and 92.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 510.07 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 91.8 MB in the beginning and 167.0 MB in the end (delta: -75.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3683.58 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 166.3 MB in the beginning and 158.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 117.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 4]: Loop Invariant [2020-09-04 22:06:23,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((!(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a]) || !(a == pa)) || !(pb == b)) || !(pb == b)) || !(a == pa)) || pa == b) || !(\valid[a] == 1)) || !(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) - ProcedureContractResult [Line: 4]: Procedure Contract for equal [2020-09-04 22:06:23,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure equal: (((((((!(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) || !(\valid[a] == 1)) || !(pa == a)) || (unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b] && unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b])) || !(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a])) || !(pb == b)) || !(b == pb)) || !(pa == a)) || b == pa - ProcedureContractResult [Line: 17]: Procedure Contract for main [2020-09-04 22:06:23,638 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,638 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 22:06:23,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure main: (!(\valid[a] == 1) || ((((b == pb && pa == a) && pa == a) && unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) && pb == b)) || b == a - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 110 SDslu, 94 SDs, 0 SdLazy, 141 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 39 PreInvPairs, 46 NumberOfFragments, 1309 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 39 FomulaSimplificationsInter, 885 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 6664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...