/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:04:40,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:04:40,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:04:40,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:04:40,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:04:40,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:04:40,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:04:40,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:04:40,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:04:40,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:04:40,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:04:40,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:04:40,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:04:40,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:04:40,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:04:40,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:04:40,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:04:40,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:04:40,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:04:40,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:04:40,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:04:40,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:04:40,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:04:40,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:04:40,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:04:40,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:04:40,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:04:40,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:04:40,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:04:40,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:04:40,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:04:40,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:04:40,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:04:40,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:04:40,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:04:40,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:04:40,414 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:04:40,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:04:40,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:04:40,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:04:40,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:04:40,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:04:40,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:04:40,415 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:04:40,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:04:40,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:04:40,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:04:40,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:04:40,885 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:04:40,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-10-24 01:04:40,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a3f03ac/af2221191d1f45c48c6ba0fd64ecd168/FLAG1425b0f83 [2020-10-24 01:04:41,710 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:04:41,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c [2020-10-24 01:04:41,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a3f03ac/af2221191d1f45c48c6ba0fd64ecd168/FLAG1425b0f83 [2020-10-24 01:04:42,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a3f03ac/af2221191d1f45c48c6ba0fd64ecd168 [2020-10-24 01:04:42,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:04:42,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:04:42,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:04:42,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:04:42,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:04:42,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448cae16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42, skipping insertion in model container [2020-10-24 01:04:42,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:04:42,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:04:42,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:04:42,370 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:04:42,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:04:42,408 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:04:42,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42 WrapperNode [2020-10-24 01:04:42,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:04:42,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:04:42,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:04:42,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:04:42,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (1/1) ... [2020-10-24 01:04:42,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:04:42,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:04:42,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:04:42,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:04:42,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (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 [2020-10-24 01:04:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:04:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:04:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:04:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-10-24 01:04:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:04:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:04:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:04:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:04:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:04:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:04:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-24 01:04:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-10-24 01:04:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:04:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:04:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:04:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:04:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:04:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:04:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:04:43,060 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:04:43,061 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 01:04:43,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:04:43 BoogieIcfgContainer [2020-10-24 01:04:43,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:04:43,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:04:43,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:04:43,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:04:43,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:04:42" (1/3) ... [2020-10-24 01:04:43,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:04:43, skipping insertion in model container [2020-10-24 01:04:43,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:42" (2/3) ... [2020-10-24 01:04:43,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:04:43, skipping insertion in model container [2020-10-24 01:04:43,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:04:43" (3/3) ... [2020-10-24 01:04:43,072 INFO L111 eAbstractionObserver]: Analyzing ICFG test11.c [2020-10-24 01:04:43,085 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:04:43,091 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:04:43,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:04:43,132 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:04:43,133 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:04:43,133 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:04:43,133 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:04:43,133 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:04:43,133 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:04:43,133 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:04:43,134 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:04:43,152 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-10-24 01:04:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-24 01:04:43,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:43,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:04:43,166 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:43,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:43,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1976764239, now seen corresponding path program 1 times [2020-10-24 01:04:43,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:43,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937272385] [2020-10-24 01:04:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:43,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:43,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:43,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937272385] [2020-10-24 01:04:43,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:43,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 01:04:43,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923322358] [2020-10-24 01:04:43,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 01:04:43,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:43,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 01:04:43,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:04:43,800 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 6 states. [2020-10-24 01:04:44,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:44,254 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2020-10-24 01:04:44,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 01:04:44,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-24 01:04:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:44,281 INFO L225 Difference]: With dead ends: 103 [2020-10-24 01:04:44,281 INFO L226 Difference]: Without dead ends: 65 [2020-10-24 01:04:44,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:04:44,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-24 01:04:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-24 01:04:44,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-24 01:04:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-10-24 01:04:44,395 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 49 [2020-10-24 01:04:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:44,396 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-10-24 01:04:44,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 01:04:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-10-24 01:04:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-24 01:04:44,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:44,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:04:44,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:04:44,402 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:44,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1361011459, now seen corresponding path program 1 times [2020-10-24 01:04:44,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:44,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198077836] [2020-10-24 01:04:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:44,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198077836] [2020-10-24 01:04:44,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:44,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:04:44,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901445415] [2020-10-24 01:04:44,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:04:44,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:44,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:04:44,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:04:44,584 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 5 states. [2020-10-24 01:04:44,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:44,771 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2020-10-24 01:04:44,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:04:44,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-24 01:04:44,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:44,774 INFO L225 Difference]: With dead ends: 82 [2020-10-24 01:04:44,774 INFO L226 Difference]: Without dead ends: 65 [2020-10-24 01:04:44,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:04:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-24 01:04:44,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-24 01:04:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-24 01:04:44,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-24 01:04:44,794 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 52 [2020-10-24 01:04:44,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:44,795 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-24 01:04:44,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:04:44,795 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-24 01:04:44,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-24 01:04:44,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:44,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:04:44,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:04:44,798 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:44,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:44,799 INFO L82 PathProgramCache]: Analyzing trace with hash -863336921, now seen corresponding path program 1 times [2020-10-24 01:04:44,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:44,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281197718] [2020-10-24 01:04:44,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:44,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:45,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:45,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281197718] [2020-10-24 01:04:45,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:45,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-24 01:04:45,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220656528] [2020-10-24 01:04:45,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:04:45,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:45,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:04:45,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:04:45,048 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 8 states. [2020-10-24 01:04:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:45,344 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2020-10-24 01:04:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-24 01:04:45,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-24 01:04:45,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:45,346 INFO L225 Difference]: With dead ends: 68 [2020-10-24 01:04:45,346 INFO L226 Difference]: Without dead ends: 61 [2020-10-24 01:04:45,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:04:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-24 01:04:45,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-24 01:04:45,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-24 01:04:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2020-10-24 01:04:45,361 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 55 [2020-10-24 01:04:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:45,361 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2020-10-24 01:04:45,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:04:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-10-24 01:04:45,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-24 01:04:45,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:45,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:04:45,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:04:45,363 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:45,364 INFO L82 PathProgramCache]: Analyzing trace with hash -395902033, now seen corresponding path program 1 times [2020-10-24 01:04:45,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:45,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473085792] [2020-10-24 01:04:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:45,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:45,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:04:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:45,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473085792] [2020-10-24 01:04:45,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:45,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 01:04:45,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861244063] [2020-10-24 01:04:45,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 01:04:45,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:45,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 01:04:45,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:04:45,525 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 6 states. [2020-10-24 01:04:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:45,711 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-10-24 01:04:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 01:04:45,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-10-24 01:04:45,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:45,712 INFO L225 Difference]: With dead ends: 61 [2020-10-24 01:04:45,712 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:04:45,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:04:45,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:04:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:04:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:04:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:04:45,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-10-24 01:04:45,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:45,714 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:04:45,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 01:04:45,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:04:45,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:04:45,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:04:45,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:04:46,848 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,849 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,849 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,849 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,849 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,850 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,850 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,850 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,850 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,850 INFO L277 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,850 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 7) the Hoare annotation is: true [2020-10-24 01:04:46,851 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-24 01:04:46,851 INFO L277 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-10-24 01:04:46,851 INFO L277 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: true [2020-10-24 01:04:46,851 INFO L277 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: true [2020-10-24 01:04:46,851 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,851 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point get_dummyFINAL(lines 9 12) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2020-10-24 01:04:46,852 INFO L277 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L277 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L277 CegarLoopResult]: At program point get_dummyEXIT(lines 9 12) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 01:04:46,853 INFO L270 CegarLoopResult]: At program point L27(lines 14 34) the Hoare annotation is: false [2020-10-24 01:04:46,853 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 14 34) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-10-24 01:04:46,854 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,854 INFO L270 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,854 INFO L270 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,854 INFO L270 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,854 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: false [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: false [2020-10-24 01:04:46,855 INFO L270 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: false [2020-10-24 01:04:46,856 INFO L270 CegarLoopResult]: At program point L20(lines 20 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,856 INFO L270 CegarLoopResult]: At program point L20-1(lines 20 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,856 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,856 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-24 01:04:46,856 INFO L270 CegarLoopResult]: At program point L20-4(lines 20 21) the Hoare annotation is: false [2020-10-24 01:04:46,857 INFO L270 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-24 01:04:46,857 INFO L270 CegarLoopResult]: At program point L20-5(lines 20 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,857 INFO L270 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-10-24 01:04:46,857 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: false [2020-10-24 01:04:46,857 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,858 INFO L270 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,858 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,858 INFO L270 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,858 INFO L270 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,858 INFO L270 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,859 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,859 INFO L270 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,859 INFO L270 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,859 INFO L270 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,860 INFO L270 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,860 INFO L270 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: false [2020-10-24 01:04:46,860 INFO L270 CegarLoopResult]: At program point L21-8(line 21) the Hoare annotation is: false [2020-10-24 01:04:46,860 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 14 34) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-10-24 01:04:46,860 INFO L270 CegarLoopResult]: At program point L21-9(line 21) the Hoare annotation is: false [2020-10-24 01:04:46,864 INFO L270 CegarLoopResult]: At program point L21-10(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,865 INFO L270 CegarLoopResult]: At program point L21-11(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,865 INFO L270 CegarLoopResult]: At program point L21-12(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,865 INFO L270 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-24 01:04:46,866 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 14 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 01:04:46,866 INFO L270 CegarLoopResult]: At program point L26(lines 26 28) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (= |main_#t~mem17| 60) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,867 INFO L270 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: false [2020-10-24 01:04:46,867 INFO L270 CegarLoopResult]: At program point L26-2(line 26) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-10-24 01:04:46,867 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,868 INFO L270 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,868 INFO L270 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-10-24 01:04:46,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:04:46 BoogieIcfgContainer [2020-10-24 01:04:46,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 01:04:46,895 INFO L168 Benchmark]: Toolchain (without parser) took 4817.27 ms. Allocated memory was 156.2 MB in the beginning and 209.7 MB in the end (delta: 53.5 MB). Free memory was 113.7 MB in the beginning and 173.1 MB in the end (delta: -59.4 MB). Peak memory consumption was 100.0 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:46,896 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 01:04:46,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.26 ms. Allocated memory is still 156.2 MB. Free memory was 112.9 MB in the beginning and 103.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:46,900 INFO L168 Benchmark]: Boogie Preprocessor took 40.89 ms. Allocated memory is still 156.2 MB. Free memory was 103.8 MB in the beginning and 102.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:46,901 INFO L168 Benchmark]: RCFGBuilder took 610.43 ms. Allocated memory is still 156.2 MB. Free memory was 102.2 MB in the beginning and 121.1 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:46,908 INFO L168 Benchmark]: TraceAbstraction took 3825.18 ms. Allocated memory was 156.2 MB in the beginning and 209.7 MB in the end (delta: 53.5 MB). Free memory was 120.6 MB in the beginning and 173.1 MB in the end (delta: -52.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:46,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 324.26 ms. Allocated memory is still 156.2 MB. Free memory was 112.9 MB in the beginning and 103.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.89 ms. Allocated memory is still 156.2 MB. Free memory was 103.8 MB in the beginning and 102.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 610.43 ms. Allocated memory is still 156.2 MB. Free memory was 102.2 MB in the beginning and 121.1 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3825.18 ms. Allocated memory was 156.2 MB in the beginning and 209.7 MB in the end (delta: 53.5 MB). Free memory was 120.6 MB in the beginning and 173.1 MB in the end (delta: -52.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 14]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 9]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 227 SDtfs, 163 SDslu, 466 SDs, 0 SdLazy, 414 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 79 LocationsWithAnnotation, 91 PreInvPairs, 108 NumberOfFragments, 645 HoareAnnotationTreeSize, 91 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 79 FomulaSimplificationsInter, 476 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 35067 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...