/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/test03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:19:09,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:19:09,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:19:09,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:19:09,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:19:09,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:19:09,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:19:09,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:19:09,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:19:09,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:19:09,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:19:09,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:19:09,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:19:09,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:19:09,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:19:09,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:19:09,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:19:09,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:19:09,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:19:09,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:19:09,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:19:09,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:19:09,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:19:09,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:19:09,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 22:19:09,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 22:19:09,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 22:19:09,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 22:19:09,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 22:19:09,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 22:19:09,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 22:19:09,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 22:19:09,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 22:19:09,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 22:19:09,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 22:19:09,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 22:19:09,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 22:19:09,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 22:19:09,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:19:09,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:19:09,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:19:09,087 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 22:19:09,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:19:09,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:19:09,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:19:09,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:19:09,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:19:09,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:19:09,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:19:09,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:19:09,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:19:09,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:19:09,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:19:09,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:19:09,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:19:09,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:19:09,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:19:09,099 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:19:09,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:19:09,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:19:09,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:19:09,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:19:09,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:19:09,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:19:09,101 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 [2020-08-22 22:19:09,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:19:09,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:19:09,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:19:09,378 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:19:09,378 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:19:09,379 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test03.c [2020-08-22 22:19:09,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46a5041e/c1eb163d3cff4fbeae7a1ba2004c3242/FLAG656b4e073 [2020-08-22 22:19:09,929 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:19:09,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test03.c [2020-08-22 22:19:09,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46a5041e/c1eb163d3cff4fbeae7a1ba2004c3242/FLAG656b4e073 [2020-08-22 22:19:10,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46a5041e/c1eb163d3cff4fbeae7a1ba2004c3242 [2020-08-22 22:19:10,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:19:10,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:19:10,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:19:10,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:19:10,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:19:10,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1083df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10, skipping insertion in model container [2020-08-22 22:19:10,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:19:10,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:19:10,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:19:10,494 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:19:10,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:19:10,534 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:19:10,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10 WrapperNode [2020-08-22 22:19:10,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:19:10,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:19:10,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:19:10,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:19:10,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (1/1) ... [2020-08-22 22:19:10,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:19:10,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:19:10,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:19:10,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:19:10,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (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 22:19:10,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:19:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:19:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-08-22 22:19:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:19:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:19:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-08-22 22:19:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:19:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 22:19:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 22:19:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 22:19:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 22:19:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:19:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:19:11,064 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:19:11,064 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 22:19:11,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:19:11 BoogieIcfgContainer [2020-08-22 22:19:11,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:19:11,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:19:11,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:19:11,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:19:11,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:19:10" (1/3) ... [2020-08-22 22:19:11,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f24a1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:19:11, skipping insertion in model container [2020-08-22 22:19:11,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:10" (2/3) ... [2020-08-22 22:19:11,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f24a1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:19:11, skipping insertion in model container [2020-08-22 22:19:11,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:19:11" (3/3) ... [2020-08-22 22:19:11,082 INFO L109 eAbstractionObserver]: Analyzing ICFG test03.c [2020-08-22 22:19:11,094 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:19:11,101 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:19:11,115 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:19:11,136 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:19:11,136 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:19:11,137 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:19:11,137 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:19:11,137 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:19:11,137 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:19:11,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:19:11,138 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:19:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-08-22 22:19:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 22:19:11,163 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:19:11,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:19:11,165 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:19:11,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:19:11,171 INFO L82 PathProgramCache]: Analyzing trace with hash -510689140, now seen corresponding path program 1 times [2020-08-22 22:19:11,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:19:11,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891859063] [2020-08-22 22:19:11,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:19:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:19:11,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:19:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:19:11,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 22:19:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:19:11,630 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 22:19:11,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891859063] [2020-08-22 22:19:11,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:19:11,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-22 22:19:11,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999308865] [2020-08-22 22:19:11,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 22:19:11,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:19:11,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 22:19:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:19:11,662 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 13 states. [2020-08-22 22:19:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:19:12,178 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-08-22 22:19:12,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 22:19:12,180 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-08-22 22:19:12,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:19:12,188 INFO L225 Difference]: With dead ends: 46 [2020-08-22 22:19:12,188 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 22:19:12,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2020-08-22 22:19:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 22:19:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 22:19:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 22:19:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 22:19:12,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-08-22 22:19:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:19:12,223 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 22:19:12,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 22:19:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 22:19:12,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 22:19:12,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:19:12,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 22:19:12,619 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,620 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,620 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,620 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~q~0 |old(~q~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 22:19:12,620 INFO L271 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-08-22 22:19:12,621 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,622 INFO L264 CegarLoopResult]: At program point fEXIT(lines 4 6) the Hoare annotation is: (and (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|) (= |f_#in~p1.base| f_~p1.base)) [2020-08-22 22:19:12,622 INFO L271 CegarLoopResult]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2020-08-22 22:19:12,622 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (= |f_#in~p2.base| f_~p2.base) (= |f_#in~p1.base| f_~p1.base)) [2020-08-22 22:19:12,622 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (= |f_#in~p1.base| f_~p1.base) [2020-08-22 22:19:12,622 INFO L264 CegarLoopResult]: At program point fFINAL(lines 4 6) the Hoare annotation is: (and (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|) (= |f_#in~p1.base| f_~p1.base)) [2020-08-22 22:19:12,623 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,623 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,623 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,623 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 22:19:12,623 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-08-22 22:19:12,624 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 10 28) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-08-22 22:19:12,624 INFO L264 CegarLoopResult]: At program point L21(lines 10 28) the Hoare annotation is: false [2020-08-22 22:19:12,624 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-08-22 22:19:12,624 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 10 28) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-08-22 22:19:12,624 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= (select |#valid| |main_~#a~0.base|) 1) [2020-08-22 22:19:12,625 INFO L264 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-08-22 22:19:12,625 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,625 INFO L264 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,625 INFO L264 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-08-22 22:19:12,626 INFO L264 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-08-22 22:19:12,626 INFO L264 CegarLoopResult]: At program point L11-6(line 11) the Hoare annotation is: false [2020-08-22 22:19:12,626 INFO L264 CegarLoopResult]: At program point L11-7(line 11) the Hoare annotation is: false [2020-08-22 22:19:12,626 INFO L264 CegarLoopResult]: At program point L11-8(line 11) the Hoare annotation is: false [2020-08-22 22:19:12,626 INFO L264 CegarLoopResult]: At program point L11-9(line 11) the Hoare annotation is: false [2020-08-22 22:19:12,627 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: false [2020-08-22 22:19:12,627 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (and (= ~q~0 |old(~q~0)|) (= |old(#valid)| |#valid|)) [2020-08-22 22:19:12,627 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,627 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,627 INFO L264 CegarLoopResult]: At program point L20-1(lines 20 22) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |main_#t~mem1| 0) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,628 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,628 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: false [2020-08-22 22:19:12,628 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (= |main_#t~ret0| 0) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,628 INFO L264 CegarLoopResult]: At program point L20-3(line 20) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |main_#t~mem1| 0) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,628 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,629 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (and (= |main_#t~ret0| 0) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,629 INFO L264 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (and (= |main_#t~ret0| 0) (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|)) [2020-08-22 22:19:12,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:19:12 BoogieIcfgContainer [2020-08-22 22:19:12,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 22:19:12,648 INFO L168 Benchmark]: Toolchain (without parser) took 2362.74 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 103.3 MB in the beginning and 149.0 MB in the end (delta: -45.7 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:12,649 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 22:19:12,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.42 ms. Allocated memory is still 138.9 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:12,651 INFO L168 Benchmark]: Boogie Preprocessor took 118.33 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 181.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:12,652 INFO L168 Benchmark]: RCFGBuilder took 414.15 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 165.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:12,653 INFO L168 Benchmark]: TraceAbstraction took 1576.02 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 149.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2020-08-22 22:19:12,658 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.42 ms. Allocated memory is still 138.9 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.33 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 181.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.15 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 165.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1576.02 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 149.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 4]: Procedure Contract for f Derived contract for procedure f: ((p2 == p2 && (p1 == p2 || \result <= 0)) && 0 <= \result) && p1 == p1 - ProcedureContractResult [Line: 10]: Procedure Contract for main Derived contract for procedure main: !(p1 == p2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 53 SDslu, 128 SDs, 0 SdLazy, 118 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 42 LocationsWithAnnotation, 42 PreInvPairs, 46 NumberOfFragments, 365 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2575 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...