/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:43:25,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:43:25,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:43:25,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:43:25,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:43:25,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:43:25,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:43:25,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:43:25,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:43:25,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:43:25,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:43:25,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:43:25,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:43:25,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:43:25,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:43:25,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:43:25,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:43:25,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:43:25,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:43:25,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:43:25,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:43:25,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:43:25,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:43:25,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:43:25,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:43:25,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:43:25,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:43:25,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:43:25,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:43:25,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:43:25,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:43:25,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:43:25,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:43:25,322 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:43:25,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:43:25,323 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:43:25,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:43:25,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:43:25,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:43:25,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:43:25,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:43:25,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:43:25,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:43:25,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:43:25,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:43:25,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:43:25,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:43:25,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:43:25,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:43:25,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:43:25,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:43:25,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:43:25,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:43:25,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:43:25,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:43:25,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:43:25,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:43:25,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:43:25,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:43:25,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:43:25,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:43:25,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:43:25,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:43:25,798 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:43:25,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-09-04 13:43:25,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c446cd02a/2252aa47e7b54053a18bf92ab8ec38d6/FLAGcc440caf3 [2020-09-04 13:43:26,451 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:43:26,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-09-04 13:43:26,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c446cd02a/2252aa47e7b54053a18bf92ab8ec38d6/FLAGcc440caf3 [2020-09-04 13:43:26,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c446cd02a/2252aa47e7b54053a18bf92ab8ec38d6 [2020-09-04 13:43:26,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:43:26,786 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:43:26,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:43:26,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:43:26,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:43:26,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:43:26" (1/1) ... [2020-09-04 13:43:26,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b0c8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:26, skipping insertion in model container [2020-09-04 13:43:26,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:43:26" (1/1) ... [2020-09-04 13:43:26,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:43:26,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:43:27,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:43:27,069 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:43:27,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:43:27,110 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:43:27,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27 WrapperNode [2020-09-04 13:43:27,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:43:27,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:43:27,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:43:27,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:43:27,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (1/1) ... [2020-09-04 13:43:27,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:43:27,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:43:27,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:43:27,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:43:27,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (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 13:43:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:43:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:43:27,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 13:43:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-09-04 13:43:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:43:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:43:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 13:43:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-09-04 13:43:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 13:43:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:43:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 13:43:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 13:43:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:43:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:43:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 13:43:27,613 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:43:27,614 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:43:27,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:43:27 BoogieIcfgContainer [2020-09-04 13:43:27,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:43:27,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:43:27,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:43:27,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:43:27,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:43:26" (1/3) ... [2020-09-04 13:43:27,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4051b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:43:27, skipping insertion in model container [2020-09-04 13:43:27,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:43:27" (2/3) ... [2020-09-04 13:43:27,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4051b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:43:27, skipping insertion in model container [2020-09-04 13:43:27,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:43:27" (3/3) ... [2020-09-04 13:43:27,628 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-09-04 13:43:27,639 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:43:27,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:43:27,670 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:43:27,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:43:27,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:43:27,700 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:43:27,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:43:27,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:43:27,700 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:43:27,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:43:27,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:43:27,722 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-09-04 13:43:27,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-04 13:43:27,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:43:27,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:43:27,730 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:43:27,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:43:27,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2020-09-04 13:43:27,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:43:27,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834604322] [2020-09-04 13:43:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:43:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:28,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:43:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:28,142 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 13:43:28,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834604322] [2020-09-04 13:43:28,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:43:28,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 13:43:28,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966071167] [2020-09-04 13:43:28,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:43:28,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:43:28,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:43:28,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:43:28,172 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 8 states. [2020-09-04 13:43:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:43:28,588 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-09-04 13:43:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:43:28,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-09-04 13:43:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:43:28,602 INFO L225 Difference]: With dead ends: 55 [2020-09-04 13:43:28,603 INFO L226 Difference]: Without dead ends: 26 [2020-09-04 13:43:28,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:43:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-04 13:43:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-09-04 13:43:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-09-04 13:43:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-09-04 13:43:28,663 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-09-04 13:43:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:43:28,664 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-09-04 13:43:28,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:43:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-09-04 13:43:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-04 13:43:28,666 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:43:28,666 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:43:28,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:43:28,667 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:43:28,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:43:28,667 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2020-09-04 13:43:28,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:43:28,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336483893] [2020-09-04 13:43:28,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:43:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:28,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:43:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:28,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:43:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:43:28,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336483893] [2020-09-04 13:43:28,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281924602] [2020-09-04 13:43:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:43:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:28,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2020-09-04 13:43:28,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:43:29,077 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:43:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:43:29,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:43:29,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2020-09-04 13:43:29,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155390146] [2020-09-04 13:43:29,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:43:29,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:43:29,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:43:29,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:43:29,142 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 11 states. [2020-09-04 13:43:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:43:29,440 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-09-04 13:43:29,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 13:43:29,441 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-04 13:43:29,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:43:29,443 INFO L225 Difference]: With dead ends: 36 [2020-09-04 13:43:29,443 INFO L226 Difference]: Without dead ends: 34 [2020-09-04 13:43:29,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:43:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-04 13:43:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-04 13:43:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 13:43:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-09-04 13:43:29,453 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2020-09-04 13:43:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:43:29,454 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-09-04 13:43:29,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:43:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-09-04 13:43:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-04 13:43:29,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:43:29,456 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:43:29,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-09-04 13:43:29,671 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:43:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:43:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash -2027370867, now seen corresponding path program 2 times [2020-09-04 13:43:29,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:43:29,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354862064] [2020-09-04 13:43:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:43:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:29,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:43:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:29,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:43:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:29,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:43:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:43:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-04 13:43:29,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354862064] [2020-09-04 13:43:29,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258617336] [2020-09-04 13:43:29,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:43:29,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-09-04 13:43:29,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:43:29,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjunts are in the unsatisfiable core [2020-09-04 13:43:29,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:43:29,997 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:43:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-04 13:43:30,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:43:30,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-09-04 13:43:30,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596246358] [2020-09-04 13:43:30,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 13:43:30,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:43:30,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 13:43:30,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:43:30,044 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 14 states. [2020-09-04 13:43:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:43:30,314 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2020-09-04 13:43:30,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:43:30,315 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 29 [2020-09-04 13:43:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:43:30,316 INFO L225 Difference]: With dead ends: 32 [2020-09-04 13:43:30,316 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:43:30,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-09-04 13:43:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:43:30,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:43:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:43:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:43:30,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-04 13:43:30,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:43:30,319 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:43:30,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 13:43:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:43:30,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:43:30,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:43:30,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:43:30,814 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:43:30,814 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 13:43:30,814 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:43:30,814 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-09-04 13:43:30,814 INFO L268 CegarLoopResult]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2020-09-04 13:43:30,815 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= ~tmp~0.base |glob2_#in~pathlim.base|)) (not (<= (+ |glob2_#in~pathbuf.offset| 4) ~tmp~0.offset)) (and (= glob2_~pathlim.base ~tmp~0.base) (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))) [2020-09-04 13:43:30,815 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-04 13:43:30,815 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-09-04 13:43:30,815 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (and (= glob2_~pathlim.base ~tmp~0.base) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (= ~tmp~0.base |glob2_#in~pathlim.base|)) (not (<= (+ |glob2_#in~pathbuf.offset| 4) ~tmp~0.offset))) [2020-09-04 13:43:30,815 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2020-09-04 13:43:30,815 INFO L268 CegarLoopResult]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2020-09-04 13:43:30,816 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:43:30,816 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 13:43:30,816 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:43:30,816 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:43:30,816 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 38) the Hoare annotation is: (and (= |old(~tmp~0.base)| ~tmp~0.base) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 13:43:30,816 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2020-09-04 13:43:30,817 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2020-09-04 13:43:30,817 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (= ~tmp~0.base main_~bound~0.base) (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (<= main_~bound~0.offset ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|)) [2020-09-04 13:43:30,817 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-09-04 13:43:30,817 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-04 13:43:30,817 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-04 13:43:30,817 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-04 13:43:30,818 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-04 13:43:30,818 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-04 13:43:30,818 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-04 13:43:30,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:43:30 BoogieIcfgContainer [2020-09-04 13:43:30,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:43:30,842 INFO L168 Benchmark]: Toolchain (without parser) took 4054.02 ms. Allocated memory was 139.5 MB in the beginning and 247.5 MB in the end (delta: 108.0 MB). Free memory was 101.4 MB in the beginning and 179.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:43:30,843 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-04 13:43:30,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.23 ms. Allocated memory is still 139.5 MB. Free memory was 101.2 MB in the beginning and 91.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:43:30,845 INFO L168 Benchmark]: Boogie Preprocessor took 121.08 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.2 MB in the beginning and 179.7 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:43:30,846 INFO L168 Benchmark]: RCFGBuilder took 385.46 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 165.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:43:30,847 INFO L168 Benchmark]: TraceAbstraction took 3218.00 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 164.8 MB in the beginning and 179.2 MB in the end (delta: -14.5 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:43:30,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.23 ms. Allocated memory is still 139.5 MB. Free memory was 101.2 MB in the beginning and 91.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.08 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.2 MB in the beginning and 179.7 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.46 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 165.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3218.00 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 164.8 MB in the beginning and 179.2 MB in the end (delta: -14.5 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 18]: Loop Invariant Derived loop invariant: (((!(pathlim <= tmp) || ((pathlim == tmp && pathlim <= tmp) && tmp == p)) || !(tmp == pathbuf)) || !(tmp == pathlim)) || !(pathbuf + 4 <= tmp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 95 SDslu, 129 SDs, 0 SdLazy, 307 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 106 HoareAnnotationTreeSize, 12 FomulaSimplifications, 135 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 167 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 113 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 10780 SizeOfPredicates, 16 NumberOfNonLiveVariables, 213 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 32/40 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...