/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 0.2.0-b8ad66e [2020-10-23 18:43:28,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:43:28,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:43:28,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:43:28,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:43:28,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:43:28,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:43:28,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:43:28,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:43:28,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:43:28,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:43:28,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:43:28,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:43:28,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:43:28,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:43:28,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:43:28,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:43:28,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:43:28,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:43:28,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:43:28,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:43:28,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:43:28,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:43:28,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:43:28,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:43:28,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:43:28,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:43:28,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:43:28,526 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:43:28,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:43:28,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:43:28,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:43:28,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:43:28,584 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:43:28,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:43:28,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:43:28,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:43:28,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:43:28,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:43:28,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:43:28,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:43:28,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:43:28,587 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:43:28,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:43:28,587 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:43:28,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:43:28,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:43:28,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:43:28,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:43:28,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:43:28,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:43:28,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:43:28,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:43:28,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:43:28,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:43:28,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:43:28,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:43:28,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:43:28,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:43:28,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:43:28,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:43:28,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:43:28,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:43:28,963 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:43:28,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-10-23 18:43:29,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4516a957f/8f917723c01d4b5181335e1ac452908f/FLAGbdc9b5d12 [2020-10-23 18:43:29,620 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:43:29,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-10-23 18:43:29,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4516a957f/8f917723c01d4b5181335e1ac452908f/FLAGbdc9b5d12 [2020-10-23 18:43:29,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4516a957f/8f917723c01d4b5181335e1ac452908f [2020-10-23 18:43:29,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:43:29,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:43:29,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:29,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:43:29,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:43:29,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:29" (1/1) ... [2020-10-23 18:43:29,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288bfd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:29, skipping insertion in model container [2020-10-23 18:43:29,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:29" (1/1) ... [2020-10-23 18:43:29,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:43:29,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:43:30,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:30,206 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:43:30,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:30,244 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:43:30,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30 WrapperNode [2020-10-23 18:43:30,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:30,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:43:30,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:43:30,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:43:30,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (1/1) ... [2020-10-23 18:43:30,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:43:30,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:43:30,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:43:30,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:43:30,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (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 [2020-10-23 18:43:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:43:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:43:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:43:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:43:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-10-23 18:43:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:43:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:43:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:43:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 18:43:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 18:43:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:43:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:43:30,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:43:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-10-23 18:43:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:43:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:43:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:43:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:43:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:43:30,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:43:30,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:43:30,993 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:43:30,993 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:43:30,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:30 BoogieIcfgContainer [2020-10-23 18:43:30,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:43:30,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:43:30,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:43:31,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:43:31,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:29" (1/3) ... [2020-10-23 18:43:31,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a70bb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:31, skipping insertion in model container [2020-10-23 18:43:31,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:30" (2/3) ... [2020-10-23 18:43:31,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a70bb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:31, skipping insertion in model container [2020-10-23 18:43:31,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:30" (3/3) ... [2020-10-23 18:43:31,006 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-10-23 18:43:31,022 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:43:31,028 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:43:31,042 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:43:31,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:43:31,083 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:43:31,084 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:43:31,084 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:43:31,084 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:43:31,084 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:43:31,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:43:31,085 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:43:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-23 18:43:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-23 18:43:31,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:31,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:31,117 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:31,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:31,125 INFO L82 PathProgramCache]: Analyzing trace with hash -146724392, now seen corresponding path program 1 times [2020-10-23 18:43:31,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:31,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266946302] [2020-10-23 18:43:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:31,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:43:31,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266946302] [2020-10-23 18:43:31,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:43:31,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:43:31,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554898449] [2020-10-23 18:43:31,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:43:31,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:31,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:43:31,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:43:31,567 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2020-10-23 18:43:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:32,069 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-10-23 18:43:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:43:32,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-23 18:43:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:32,079 INFO L225 Difference]: With dead ends: 62 [2020-10-23 18:43:32,079 INFO L226 Difference]: Without dead ends: 28 [2020-10-23 18:43:32,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:43:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-23 18:43:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-10-23 18:43:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-23 18:43:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-10-23 18:43:32,124 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 15 [2020-10-23 18:43:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:32,125 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-10-23 18:43:32,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:43:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-10-23 18:43:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-23 18:43:32,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:32,126 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:32,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:43:32,127 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:32,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:32,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1818918482, now seen corresponding path program 1 times [2020-10-23 18:43:32,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:32,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164756260] [2020-10-23 18:43:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:32,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:32,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:43:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:43:32,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164756260] [2020-10-23 18:43:32,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998466734] [2020-10-23 18:43:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 18:43:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:32,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-23 18:43:32,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:43:32,605 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:43:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:43:32,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:43:32,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-10-23 18:43:32,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738601605] [2020-10-23 18:43:32,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:43:32,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:32,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:43:32,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:43:32,652 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 14 states. [2020-10-23 18:43:33,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:33,105 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-10-23 18:43:33,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:43:33,106 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2020-10-23 18:43:33,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:33,108 INFO L225 Difference]: With dead ends: 40 [2020-10-23 18:43:33,108 INFO L226 Difference]: Without dead ends: 36 [2020-10-23 18:43:33,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:43:33,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-23 18:43:33,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-23 18:43:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-23 18:43:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-10-23 18:43:33,119 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2020-10-23 18:43:33,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:33,120 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-10-23 18:43:33,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:43:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-10-23 18:43:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-23 18:43:33,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:33,121 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:33,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-23 18:43:33,335 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:33,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:33,337 INFO L82 PathProgramCache]: Analyzing trace with hash -824728700, now seen corresponding path program 2 times [2020-10-23 18:43:33,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:33,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247457416] [2020-10-23 18:43:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:33,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:43:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:33,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 18:43:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:43:33,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247457416] [2020-10-23 18:43:33,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810622772] [2020-10-23 18:43:33,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 18:43:33,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-23 18:43:33,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-23 18:43:33,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-23 18:43:33,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:43:33,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:43:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:43:33,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:43:33,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-10-23 18:43:33,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225053699] [2020-10-23 18:43:33,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:43:33,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:33,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:43:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:43:33,724 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2020-10-23 18:43:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:34,131 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-10-23 18:43:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:43:34,134 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2020-10-23 18:43:34,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:34,135 INFO L225 Difference]: With dead ends: 34 [2020-10-23 18:43:34,135 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:43:34,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:43:34,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:43:34,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:43:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:43:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:43:34,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-10-23 18:43:34,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:34,139 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:43:34,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:43:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:43:34,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:43:34,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:43:34,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:43:34,660 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-23 18:43:34,661 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-23 18:43:34,661 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-23 18:43:34,661 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-23 18:43:34,661 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-23 18:43:34,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:43:34,662 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= ~tmp~0.base |old(~tmp~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-23 18:43:34,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:43:34,662 INFO L270 CegarLoopResult]: At program point L31(line 31) 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| 0)) (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)) (not (<= 4 ~tmp~0.offset))) [2020-10-23 18:43:34,662 INFO L277 CegarLoopResult]: At program point glob2ENTRY(lines 25 36) the Hoare annotation is: true [2020-10-23 18:43:34,662 INFO L274 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-10-23 18:43:34,663 INFO L274 CegarLoopResult]: For program point L29-2(lines 29 33) no Hoare annotation was computed. [2020-10-23 18:43:34,663 INFO L270 CegarLoopResult]: At program point L29-3(lines 29 33) 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| 0)) (not (<= 4 ~tmp~0.offset))) [2020-10-23 18:43:34,663 INFO L274 CegarLoopResult]: For program point L29-4(lines 29 33) no Hoare annotation was computed. [2020-10-23 18:43:34,663 INFO L274 CegarLoopResult]: For program point glob2EXIT(lines 25 36) no Hoare annotation was computed. [2020-10-23 18:43:34,663 INFO L274 CegarLoopResult]: For program point glob2FINAL(lines 25 36) no Hoare annotation was computed. [2020-10-23 18:43:34,663 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:43:34,664 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 18:43:34,664 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:43:34,664 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:43:34,664 INFO L270 CegarLoopResult]: At program point L46(line 46) 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|) (= |main_~#pathbuf~0.offset| 0)) [2020-10-23 18:43:34,664 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 38 49) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(~tmp~0.base)| ~tmp~0.base) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-10-23 18:43:34,665 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-23 18:43:34,665 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 38 49) no Hoare annotation was computed. [2020-10-23 18:43:34,665 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 38 49) no Hoare annotation was computed. [2020-10-23 18:43:34,665 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-23 18:43:34,665 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-10-23 18:43:34,665 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-23 18:43:34,665 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2020-10-23 18:43:34,666 INFO L274 CegarLoopResult]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2020-10-23 18:43:34,666 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2020-10-23 18:43:34,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:43:34 BoogieIcfgContainer [2020-10-23 18:43:34,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:43:34,695 INFO L168 Benchmark]: Toolchain (without parser) took 4748.35 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 115.2 MB in the beginning and 94.1 MB in the end (delta: 21.1 MB). Peak memory consumption was 54.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:34,696 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 159.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:34,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.18 ms. Allocated memory is still 159.4 MB. Free memory was 114.6 MB in the beginning and 135.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:34,701 INFO L168 Benchmark]: Boogie Preprocessor took 107.90 ms. Allocated memory is still 159.4 MB. Free memory was 135.0 MB in the beginning and 142.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 2.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:34,702 INFO L168 Benchmark]: RCFGBuilder took 637.52 ms. Allocated memory is still 159.4 MB. Free memory was 142.0 MB in the beginning and 127.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:34,710 INFO L168 Benchmark]: TraceAbstraction took 3693.31 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 127.1 MB in the beginning and 94.1 MB in the end (delta: 33.0 MB). Peak memory consumption was 66.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:34,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 159.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 296.18 ms. Allocated memory is still 159.4 MB. Free memory was 114.6 MB in the beginning and 135.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.90 ms. Allocated memory is still 159.4 MB. Free memory was 135.0 MB in the beginning and 142.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 2.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 637.52 ms. Allocated memory is still 159.4 MB. Free memory was 142.0 MB in the beginning and 127.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3693.31 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 127.1 MB in the beginning and 94.1 MB in the end (delta: 33.0 MB). Peak memory consumption was 66.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 29]: Loop Invariant Derived loop invariant: ((((!(pathlim <= tmp) || ((pathlim == tmp && pathlim <= tmp) && tmp == p)) || !(tmp == pathbuf)) || !(tmp == pathlim)) || !(pathbuf == 0)) || !(4 <= tmp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 99 SDslu, 137 SDs, 0 SdLazy, 346 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 11 LocationsWithAnnotation, 19 PreInvPairs, 24 NumberOfFragments, 136 HoareAnnotationTreeSize, 19 FomulaSimplifications, 179 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 268 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 123 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 13216 SizeOfPredicates, 16 NumberOfNonLiveVariables, 291 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...