/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 0.2.0-7d8eed3 [2020-11-06 22:45:32,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:45:32,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:45:32,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:45:32,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:45:32,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:45:32,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:45:32,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:45:32,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:45:32,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:45:32,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:45:32,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:45:32,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:45:32,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:45:32,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:45:32,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:45:32,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:45:32,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:45:32,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:45:32,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:45:32,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:45:32,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:45:32,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:45:32,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:45:32,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:45:32,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:45:32,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:45:32,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:45:32,340 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 [2020-11-06 22:45:32,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:45:32,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:45:32,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:45:32,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:45:32,410 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:45:32,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:45:32,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:45:32,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:45:32,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:45:32,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:45:32,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:45:32,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:45:32,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:45:32,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:45:32,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:45:32,414 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:45:32,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:45:32,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:45:32,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:45:32,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:45:32,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:45:32,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:45:32,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:45:32,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:45:32,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:45:32,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:45:32,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:45:32,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:45:32,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:45:32,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:45:32,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:45:32,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:45:32,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:45:32,844 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:45:32,844 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:45:32,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-11-06 22:45:32,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3bd99fa/99ee6a80601443f38b9d7ba7f38eab8e/FLAG6b3cf5b3f [2020-11-06 22:45:33,519 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:45:33,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-11-06 22:45:33,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3bd99fa/99ee6a80601443f38b9d7ba7f38eab8e/FLAG6b3cf5b3f [2020-11-06 22:45:33,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3bd99fa/99ee6a80601443f38b9d7ba7f38eab8e [2020-11-06 22:45:33,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:45:33,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:45:33,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:45:33,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:45:33,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:45:33,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:33" (1/1) ... [2020-11-06 22:45:33,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e4820e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:33, skipping insertion in model container [2020-11-06 22:45:33,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:33" (1/1) ... [2020-11-06 22:45:33,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:45:33,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:45:34,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:45:34,152 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:45:34,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:45:34,211 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:45:34,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34 WrapperNode [2020-11-06 22:45:34,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:45:34,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:45:34,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:45:34,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:45:34,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (1/1) ... [2020-11-06 22:45:34,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:45:34,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:45:34,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:45:34,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:45:34,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (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 [2020-11-06 22:45:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:45:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:45:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:45:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 22:45:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-11-06 22:45:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:45:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:45:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:45:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-06 22:45:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-06 22:45:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:45:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:45:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 22:45:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-11-06 22:45:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:45:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:45:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:45:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:45:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:45:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:45:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:45:34,955 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:45:34,955 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:45:34,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:34 BoogieIcfgContainer [2020-11-06 22:45:34,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:45:34,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:45:34,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:45:34,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:45:34,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:45:33" (1/3) ... [2020-11-06 22:45:34,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d17cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:34, skipping insertion in model container [2020-11-06 22:45:34,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:34" (2/3) ... [2020-11-06 22:45:34,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d17cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:34, skipping insertion in model container [2020-11-06 22:45:34,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:34" (3/3) ... [2020-11-06 22:45:34,968 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-11-06 22:45:34,986 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:45:34,990 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:45:35,003 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:45:35,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:45:35,035 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:45:35,035 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:45:35,035 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:45:35,035 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:45:35,036 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:45:35,036 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:45:35,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:45:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-06 22:45:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-06 22:45:35,061 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:45:35,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:45:35,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:45:35,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:45:35,070 INFO L82 PathProgramCache]: Analyzing trace with hash -146724392, now seen corresponding path program 1 times [2020-11-06 22:45:35,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:45:35,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623292070] [2020-11-06 22:45:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:45:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:35,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:45:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:45:35,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623292070] [2020-11-06 22:45:35,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:45:35,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:45:35,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980377139] [2020-11-06 22:45:35,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:45:35,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:45:35,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:45:35,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:45:35,512 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2020-11-06 22:45:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:45:36,046 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-11-06 22:45:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:45:36,049 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-06 22:45:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:45:36,057 INFO L225 Difference]: With dead ends: 62 [2020-11-06 22:45:36,057 INFO L226 Difference]: Without dead ends: 28 [2020-11-06 22:45:36,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:45:36,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-06 22:45:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-11-06 22:45:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-06 22:45:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-11-06 22:45:36,116 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 15 [2020-11-06 22:45:36,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:45:36,116 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-11-06 22:45:36,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:45:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-11-06 22:45:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-06 22:45:36,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:45:36,118 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] [2020-11-06 22:45:36,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:45:36,119 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:45:36,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:45:36,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1818918482, now seen corresponding path program 1 times [2020-11-06 22:45:36,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:45:36,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946675066] [2020-11-06 22:45:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:45:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:45:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:36,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:45:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:45:36,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946675066] [2020-11-06 22:45:36,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503047853] [2020-11-06 22:45:36,370 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 [2020-11-06 22:45:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:36,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-06 22:45:36,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:45:36,602 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 22:45:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:45:36,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:45:36,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-11-06 22:45:36,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428965668] [2020-11-06 22:45:36,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 22:45:36,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:45:36,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 22:45:36,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:45:36,661 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 14 states. [2020-11-06 22:45:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:45:37,128 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-11-06 22:45:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:45:37,128 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2020-11-06 22:45:37,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:45:37,130 INFO L225 Difference]: With dead ends: 40 [2020-11-06 22:45:37,130 INFO L226 Difference]: Without dead ends: 36 [2020-11-06 22:45:37,132 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 [2020-11-06 22:45:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-06 22:45:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-11-06 22:45:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-06 22:45:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-11-06 22:45:37,154 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2020-11-06 22:45:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:45:37,155 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-11-06 22:45:37,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 22:45:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-11-06 22:45:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-06 22:45:37,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:45:37,157 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] [2020-11-06 22:45:37,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-06 22:45:37,373 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:45:37,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:45:37,375 INFO L82 PathProgramCache]: Analyzing trace with hash -824728700, now seen corresponding path program 2 times [2020-11-06 22:45:37,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:45:37,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629464582] [2020-11-06 22:45:37,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:45:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:45:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-06 22:45:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:37,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-06 22:45:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:45:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-06 22:45:37,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629464582] [2020-11-06 22:45:37,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914609814] [2020-11-06 22:45:37,582 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 [2020-11-06 22:45:37,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-06 22:45:37,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-06 22:45:37,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-06 22:45:37,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:45:37,735 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 22:45:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-06 22:45:37,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:45:37,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-11-06 22:45:37,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986009173] [2020-11-06 22:45:37,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 22:45:37,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:45:37,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 22:45:37,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:45:37,780 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2020-11-06 22:45:38,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:45:38,097 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-11-06 22:45:38,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:45:38,098 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2020-11-06 22:45:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:45:38,099 INFO L225 Difference]: With dead ends: 34 [2020-11-06 22:45:38,099 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:45:38,100 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 [2020-11-06 22:45:38,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:45:38,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:45:38,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:45:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:45:38,101 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-11-06 22:45:38,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:45:38,101 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:45:38,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 22:45:38,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:45:38,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:45:38,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:45:38,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:45:38,717 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-11-06 22:45:38,717 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-06 22:45:38,718 INFO L266 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-11-06 22:45:38,718 INFO L266 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-06 22:45:38,718 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-06 22:45:38,718 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:45:38,718 INFO L262 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)|)) [2020-11-06 22:45:38,719 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:45:38,719 INFO L262 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))) [2020-11-06 22:45:38,719 INFO L269 CegarLoopResult]: At program point glob2ENTRY(lines 25 36) the Hoare annotation is: true [2020-11-06 22:45:38,719 INFO L266 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-11-06 22:45:38,719 INFO L266 CegarLoopResult]: For program point L29-2(lines 29 33) no Hoare annotation was computed. [2020-11-06 22:45:38,720 INFO L262 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))) [2020-11-06 22:45:38,720 INFO L266 CegarLoopResult]: For program point L29-4(lines 29 33) no Hoare annotation was computed. [2020-11-06 22:45:38,720 INFO L266 CegarLoopResult]: For program point glob2EXIT(lines 25 36) no Hoare annotation was computed. [2020-11-06 22:45:38,720 INFO L266 CegarLoopResult]: For program point glob2FINAL(lines 25 36) no Hoare annotation was computed. [2020-11-06 22:45:38,720 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:45:38,720 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 22:45:38,720 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:45:38,721 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:45:38,721 INFO L262 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)) [2020-11-06 22:45:38,721 INFO L262 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|)) [2020-11-06 22:45:38,721 INFO L266 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-11-06 22:45:38,721 INFO L266 CegarLoopResult]: For program point mainFINAL(lines 38 49) no Hoare annotation was computed. [2020-11-06 22:45:38,722 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 38 49) no Hoare annotation was computed. [2020-11-06 22:45:38,722 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-11-06 22:45:38,722 INFO L266 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-06 22:45:38,722 INFO L266 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-11-06 22:45:38,722 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2020-11-06 22:45:38,722 INFO L266 CegarLoopResult]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2020-11-06 22:45:38,723 INFO L266 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2020-11-06 22:45:38,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:45:38 BoogieIcfgContainer [2020-11-06 22:45:38,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:45:38,745 INFO L168 Benchmark]: Toolchain (without parser) took 4873.88 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.0 MB in the beginning and 121.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 8.0 GB. [2020-11-06 22:45:38,745 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 100.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:45:38,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 116.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 22:45:38,747 INFO L168 Benchmark]: Boogie Preprocessor took 77.04 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:45:38,748 INFO L168 Benchmark]: RCFGBuilder took 664.27 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 134.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:45:38,749 INFO L168 Benchmark]: TraceAbstraction took 3782.15 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 133.8 MB in the beginning and 121.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 100.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:45:38,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 100.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 333.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 116.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.04 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 664.27 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 134.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3782.15 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 133.8 MB in the beginning and 121.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 100.3 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: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 99 SDslu, 137 SDs, 0 SdLazy, 346 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s 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, 0.1s 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...