/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/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:16:41,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:16:41,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:16:42,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:16:42,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:16:42,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:16:42,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:16:42,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:16:42,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:16:42,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:16:42,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:16:42,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:16:42,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:16:42,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:16:42,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:16:42,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:16:42,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:16:42,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:16:42,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:16:42,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:16:42,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:16:42,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:16:42,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:16:42,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:16:42,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:16:42,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:16:42,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:16:42,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:16:42,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:16:42,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:16:42,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:16:42,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:16:42,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:16:42,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:16:42,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:16:42,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:16:42,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:16:42,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:16:42,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:16:42,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:16:42,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:16:42,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:16:42,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:16:42,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:16:42,134 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:16:42,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:16:42,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:16:42,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:16:42,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:16:42,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:16:42,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:16:42,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:16:42,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:16:42,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:16:42,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:16:42,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:16:42,552 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:16:42,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2020-11-07 05:16:42,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70435273c/ea008ebf3fef4928bc04184c00fc709a/FLAG467c21153 [2020-11-07 05:16:43,187 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:16:43,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test14.c [2020-11-07 05:16:43,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70435273c/ea008ebf3fef4928bc04184c00fc709a/FLAG467c21153 [2020-11-07 05:16:43,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70435273c/ea008ebf3fef4928bc04184c00fc709a [2020-11-07 05:16:43,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:16:43,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:16:43,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:16:43,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:16:43,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:16:43,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f995c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43, skipping insertion in model container [2020-11-07 05:16:43,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:16:43,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:16:43,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:16:43,802 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:16:43,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:16:43,839 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:16:43,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43 WrapperNode [2020-11-07 05:16:43,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:16:43,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:16:43,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:16:43,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:16:43,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (1/1) ... [2020-11-07 05:16:43,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:16:43,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:16:43,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:16:43,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:16:43,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (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 [2020-11-07 05:16:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:16:44,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:16:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:16:44,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-11-07 05:16:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:16:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:16:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:16:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:16:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:16:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:16:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-11-07 05:16:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-11-07 05:16:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:16:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:16:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:16:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:16:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:16:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:16:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:16:44,443 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:16:44,443 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 05:16:44,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:16:44 BoogieIcfgContainer [2020-11-07 05:16:44,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:16:44,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:16:44,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:16:44,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:16:44,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:16:43" (1/3) ... [2020-11-07 05:16:44,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3751683d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:16:44, skipping insertion in model container [2020-11-07 05:16:44,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:43" (2/3) ... [2020-11-07 05:16:44,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3751683d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:16:44, skipping insertion in model container [2020-11-07 05:16:44,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:16:44" (3/3) ... [2020-11-07 05:16:44,467 INFO L111 eAbstractionObserver]: Analyzing ICFG test14.c [2020-11-07 05:16:44,508 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:16:44,518 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:16:44,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:16:44,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:16:44,600 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:16:44,600 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:16:44,600 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:16:44,600 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:16:44,601 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:16:44,601 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:16:44,601 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:16:44,642 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-07 05:16:44,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-07 05:16:44,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:16:44,665 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] [2020-11-07 05:16:44,665 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:16:44,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:16:44,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1318884326, now seen corresponding path program 1 times [2020-11-07 05:16:44,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:16:44,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058637809] [2020-11-07 05:16:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:16:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:45,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:16:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:16:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:16:45,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058637809] [2020-11-07 05:16:45,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:16:45,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 05:16:45,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718936438] [2020-11-07 05:16:45,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 05:16:45,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:16:45,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 05:16:45,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:16:45,165 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 6 states. [2020-11-07 05:16:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:16:45,480 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-11-07 05:16:45,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 05:16:45,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-11-07 05:16:45,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:16:45,492 INFO L225 Difference]: With dead ends: 93 [2020-11-07 05:16:45,492 INFO L226 Difference]: Without dead ends: 57 [2020-11-07 05:16:45,497 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 [2020-11-07 05:16:45,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-07 05:16:45,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-07 05:16:45,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-07 05:16:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-11-07 05:16:45,554 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 49 [2020-11-07 05:16:45,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:16:45,555 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-11-07 05:16:45,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 05:16:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-11-07 05:16:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-07 05:16:45,557 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:16:45,558 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] [2020-11-07 05:16:45,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:16:45,558 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:16:45,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:16:45,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1960927892, now seen corresponding path program 1 times [2020-11-07 05:16:45,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:16:45,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027826887] [2020-11-07 05:16:45,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:16:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:45,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:16:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:16:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:16:45,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027826887] [2020-11-07 05:16:45,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:16:45,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 05:16:45,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046470470] [2020-11-07 05:16:45,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:16:45,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:16:45,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:16:45,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:16:45,732 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 5 states. [2020-11-07 05:16:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:16:45,900 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2020-11-07 05:16:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:16:45,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-11-07 05:16:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:16:45,903 INFO L225 Difference]: With dead ends: 66 [2020-11-07 05:16:45,904 INFO L226 Difference]: Without dead ends: 57 [2020-11-07 05:16:45,905 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 [2020-11-07 05:16:45,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-07 05:16:45,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-07 05:16:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-07 05:16:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2020-11-07 05:16:45,919 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 52 [2020-11-07 05:16:45,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:16:45,920 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2020-11-07 05:16:45,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:16:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2020-11-07 05:16:45,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-07 05:16:45,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:16:45,922 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] [2020-11-07 05:16:45,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:16:45,923 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:16:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:16:45,924 INFO L82 PathProgramCache]: Analyzing trace with hash -113796720, now seen corresponding path program 1 times [2020-11-07 05:16:45,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:16:45,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762056015] [2020-11-07 05:16:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:16:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:46,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:16:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:46,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:16:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:16:46,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762056015] [2020-11-07 05:16:46,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:16:46,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 05:16:46,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14357611] [2020-11-07 05:16:46,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:16:46,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:16:46,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:16:46,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:16:46,197 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 8 states. [2020-11-07 05:16:46,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:16:46,406 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2020-11-07 05:16:46,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 05:16:46,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-11-07 05:16:46,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:16:46,408 INFO L225 Difference]: With dead ends: 57 [2020-11-07 05:16:46,408 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:16:46,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:16:46,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:16:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:16:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:16:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:16:46,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-11-07 05:16:46,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:16:46,411 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:16:46,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:16:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:16:46,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:16:46,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:16:46,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:16:46,860 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,861 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,861 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,861 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,861 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,861 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,862 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,862 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,862 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,862 INFO L269 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,862 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 7) the Hoare annotation is: true [2020-11-07 05:16:46,862 INFO L262 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)|)) [2020-11-07 05:16:46,863 INFO L269 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-11-07 05:16:46,863 INFO L269 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: true [2020-11-07 05:16:46,863 INFO L269 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: true [2020-11-07 05:16:46,863 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,863 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 05:16:46,863 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,864 INFO L269 CegarLoopResult]: At program point get_dummyFINAL(lines 9 12) the Hoare annotation is: true [2020-11-07 05:16:46,864 INFO L269 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-11-07 05:16:46,864 INFO L269 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: true [2020-11-07 05:16:46,864 INFO L269 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: true [2020-11-07 05:16:46,864 INFO L269 CegarLoopResult]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2020-11-07 05:16:46,864 INFO L269 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L269 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L269 CegarLoopResult]: At program point get_dummyEXIT(lines 9 12) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 05:16:46,865 INFO L262 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-11-07 05:16:46,866 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 14 29) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-11-07 05:16:46,866 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 05:16:46,866 INFO L262 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 05:16:46,866 INFO L262 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 05:16:46,866 INFO L262 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-11-07 05:16:46,867 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 05:16:46,867 INFO L262 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 05:16:46,867 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,867 INFO L262 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,867 INFO L262 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))) [2020-11-07 05:16:46,867 INFO L262 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 05:16:46,868 INFO L262 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: false [2020-11-07 05:16:46,868 INFO L262 CegarLoopResult]: At program point L15-7(line 15) the Hoare annotation is: false [2020-11-07 05:16:46,868 INFO L262 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: false [2020-11-07 05:16:46,868 INFO L262 CegarLoopResult]: At program point L20(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2020-11-07 05:16:46,868 INFO L262 CegarLoopResult]: At program point L20-1(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (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)) [2020-11-07 05:16:46,869 INFO L262 CegarLoopResult]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short14|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-11-07 05:16:46,869 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,869 INFO L262 CegarLoopResult]: At program point L20-4(lines 20 21) the Hoare annotation is: false [2020-11-07 05:16:46,869 INFO L262 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,869 INFO L262 CegarLoopResult]: At program point L20-5(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2020-11-07 05:16:46,870 INFO L262 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 05:16:46,870 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (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)) [2020-11-07 05:16:46,870 INFO L262 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (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)) [2020-11-07 05:16:46,870 INFO L262 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (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)) [2020-11-07 05:16:46,871 INFO L262 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-11-07 05:16:46,871 INFO L262 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,871 INFO L262 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-11-07 05:16:46,871 INFO L262 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,871 INFO L262 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,872 INFO L262 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short14|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2020-11-07 05:16:46,872 INFO L262 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: false [2020-11-07 05:16:46,872 INFO L262 CegarLoopResult]: At program point L21-8(line 21) the Hoare annotation is: false [2020-11-07 05:16:46,872 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 14 29) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-11-07 05:16:46,872 INFO L262 CegarLoopResult]: At program point L21-9(line 21) the Hoare annotation is: false [2020-11-07 05:16:46,872 INFO L262 CegarLoopResult]: At program point L21-10(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2020-11-07 05:16:46,873 INFO L262 CegarLoopResult]: At program point L21-11(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2020-11-07 05:16:46,873 INFO L262 CegarLoopResult]: At program point L21-12(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 05:16:46,873 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 05:16:46,873 INFO L262 CegarLoopResult]: At program point L22(lines 14 29) the Hoare annotation is: false [2020-11-07 05:16:46,873 INFO L262 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,873 INFO L262 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,874 INFO L262 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 05:16:46,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:16:46 BoogieIcfgContainer [2020-11-07 05:16:46,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:16:46,896 INFO L168 Benchmark]: Toolchain (without parser) took 3332.00 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 118.0 MB in the beginning and 166.7 MB in the end (delta: -48.7 MB). Peak memory consumption was 78.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:46,897 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 159.4 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:16:46,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.02 ms. Allocated memory is still 159.4 MB. Free memory was 117.1 MB in the beginning and 107.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:46,899 INFO L168 Benchmark]: Boogie Preprocessor took 63.75 ms. Allocated memory is still 159.4 MB. Free memory was 107.8 MB in the beginning and 142.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:46,900 INFO L168 Benchmark]: RCFGBuilder took 539.27 ms. Allocated memory is still 159.4 MB. Free memory was 142.6 MB in the beginning and 124.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:46,901 INFO L168 Benchmark]: TraceAbstraction took 2444.69 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 124.4 MB in the beginning and 166.7 MB in the end (delta: -42.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:46,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 159.4 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 262.02 ms. Allocated memory is still 159.4 MB. Free memory was 117.1 MB in the beginning and 107.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.75 ms. Allocated memory is still 159.4 MB. Free memory was 107.8 MB in the beginning and 142.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 539.27 ms. Allocated memory is still 159.4 MB. Free memory was 142.6 MB in the beginning and 124.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2444.69 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 124.4 MB in the beginning and 166.7 MB in the end (delta: -42.4 MB). Peak memory consumption was 84.5 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 153 SDtfs, 114 SDslu, 314 SDs, 0 SdLazy, 293 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 82 PreInvPairs, 95 NumberOfFragments, 457 HoareAnnotationTreeSize, 82 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 74 FomulaSimplificationsInter, 444 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 20163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...