/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:52:36,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:52:36,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:52:36,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:52:36,779 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 00:52:36,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:52:36,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:52:36,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:52:36,809 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:52:36,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:52:36,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:52:36,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:52:36,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:52:36,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:52:36,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:52:36,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:52:36,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:52:36,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:52:36,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:52:36,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:52:36,813 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:52:36,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:52:36,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:52:36,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:52:36,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:52:36,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:52:36,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:52:36,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:52:37,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:52:37,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:52:37,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:52:37,305 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:52:37,306 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:52:37,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-11-07 00:52:37,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b38665b/d4fb2cc312e54816b706d35ebc8c256c/FLAG3612bf14a [2020-11-07 00:52:38,203 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:52:38,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c [2020-11-07 00:52:38,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b38665b/d4fb2cc312e54816b706d35ebc8c256c/FLAG3612bf14a [2020-11-07 00:52:38,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b38665b/d4fb2cc312e54816b706d35ebc8c256c [2020-11-07 00:52:38,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:52:38,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:52:38,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:38,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:52:38,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:52:38,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22056c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38, skipping insertion in model container [2020-11-07 00:52:38,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:52:38,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:52:38,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:38,808 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:52:38,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:38,845 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:52:38,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38 WrapperNode [2020-11-07 00:52:38,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:38,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:52:38,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:52:38,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:52:38,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (1/1) ... [2020-11-07 00:52:38,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:52:38,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:52:38,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:52:38,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:52:38,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (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 00:52:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:52:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:52:38,972 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:52:38,972 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-11-07 00:52:38,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:52:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:52:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:52:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:52:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:52:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:52:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-11-07 00:52:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-11-07 00:52:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:52:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:52:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:52:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:52:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:52:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:52:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:52:39,361 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:52:39,364 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:52:39,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:39 BoogieIcfgContainer [2020-11-07 00:52:39,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:52:39,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:52:39,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:52:39,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:52:39,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:52:38" (1/3) ... [2020-11-07 00:52:39,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c05e1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:39, skipping insertion in model container [2020-11-07 00:52:39,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:38" (2/3) ... [2020-11-07 00:52:39,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c05e1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:39, skipping insertion in model container [2020-11-07 00:52:39,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:39" (3/3) ... [2020-11-07 00:52:39,388 INFO L111 eAbstractionObserver]: Analyzing ICFG test11.c [2020-11-07 00:52:39,418 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:52:39,422 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:52:39,436 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:52:39,461 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:52:39,461 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:52:39,462 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:52:39,462 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:52:39,462 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:52:39,462 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:52:39,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:52:39,462 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:52:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-11-07 00:52:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-07 00:52:39,501 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:39,502 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 00:52:39,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:39,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1976764239, now seen corresponding path program 1 times [2020-11-07 00:52:39,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:39,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042270200] [2020-11-07 00:52:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:39,658 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:40,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:40,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:52:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:40,246 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 00:52:40,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042270200] [2020-11-07 00:52:40,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:40,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:52:40,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801913574] [2020-11-07 00:52:40,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:52:40,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:40,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:52:40,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:52:40,284 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 6 states. [2020-11-07 00:52:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:40,610 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2020-11-07 00:52:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:52:40,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-11-07 00:52:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:40,620 INFO L225 Difference]: With dead ends: 103 [2020-11-07 00:52:40,621 INFO L226 Difference]: Without dead ends: 65 [2020-11-07 00:52:40,624 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 00:52:40,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-07 00:52:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-07 00:52:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-07 00:52:40,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-11-07 00:52:40,683 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 49 [2020-11-07 00:52:40,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:40,684 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-11-07 00:52:40,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:52:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-11-07 00:52:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-07 00:52:40,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:40,687 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 00:52:40,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:52:40,687 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:40,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1361011459, now seen corresponding path program 1 times [2020-11-07 00:52:40,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:40,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223677337] [2020-11-07 00:52:40,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:40,693 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:40,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:52:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:40,846 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 00:52:40,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223677337] [2020-11-07 00:52:40,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:40,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:52:40,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704753432] [2020-11-07 00:52:40,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:52:40,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:40,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:52:40,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:52:40,850 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 5 states. [2020-11-07 00:52:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:41,050 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2020-11-07 00:52:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:52:41,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-11-07 00:52:41,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:41,053 INFO L225 Difference]: With dead ends: 82 [2020-11-07 00:52:41,053 INFO L226 Difference]: Without dead ends: 65 [2020-11-07 00:52:41,055 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 00:52:41,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-07 00:52:41,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-07 00:52:41,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-07 00:52:41,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-11-07 00:52:41,070 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 52 [2020-11-07 00:52:41,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:41,071 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-11-07 00:52:41,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:52:41,071 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-11-07 00:52:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-07 00:52:41,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:41,073 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 00:52:41,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:52:41,074 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:41,075 INFO L82 PathProgramCache]: Analyzing trace with hash -863336921, now seen corresponding path program 1 times [2020-11-07 00:52:41,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:41,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705519827] [2020-11-07 00:52:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:41,078 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:41,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:52:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:41,296 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 00:52:41,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705519827] [2020-11-07 00:52:41,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:41,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 00:52:41,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970234923] [2020-11-07 00:52:41,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 00:52:41,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:41,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 00:52:41,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 00:52:41,301 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 8 states. [2020-11-07 00:52:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:41,593 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2020-11-07 00:52:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:52:41,594 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-11-07 00:52:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:41,596 INFO L225 Difference]: With dead ends: 68 [2020-11-07 00:52:41,596 INFO L226 Difference]: Without dead ends: 61 [2020-11-07 00:52:41,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-07 00:52:41,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-07 00:52:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-07 00:52:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-07 00:52:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2020-11-07 00:52:41,610 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 55 [2020-11-07 00:52:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:41,610 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2020-11-07 00:52:41,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 00:52:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-11-07 00:52:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 00:52:41,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:41,612 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] [2020-11-07 00:52:41,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:52:41,613 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:41,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:41,613 INFO L82 PathProgramCache]: Analyzing trace with hash -395902033, now seen corresponding path program 1 times [2020-11-07 00:52:41,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:41,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999849343] [2020-11-07 00:52:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:41,617 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:41,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:41,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:52:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:41,749 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 00:52:41,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999849343] [2020-11-07 00:52:41,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:41,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:52:41,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006553801] [2020-11-07 00:52:41,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:52:41,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:41,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:52:41,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:52:41,754 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 6 states. [2020-11-07 00:52:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:41,955 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-11-07 00:52:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:52:41,955 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-11-07 00:52:41,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:41,956 INFO L225 Difference]: With dead ends: 61 [2020-11-07 00:52:41,956 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:52:41,957 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 [2020-11-07 00:52:41,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:52:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:52:41,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:52:41,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:52:41,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-11-07 00:52:41,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:41,958 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:52:41,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:52:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:52:41,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:52:41,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:52:41,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:52:42,825 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,826 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,826 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,826 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,826 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,826 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,826 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,827 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,827 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,827 INFO L269 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,827 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 7) the Hoare annotation is: true [2020-11-07 00:52:42,827 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 00:52:42,828 INFO L269 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-11-07 00:52:42,828 INFO L269 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: true [2020-11-07 00:52:42,828 INFO L269 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: true [2020-11-07 00:52:42,828 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,828 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 00:52:42,828 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,828 INFO L269 CegarLoopResult]: At program point get_dummyFINAL(lines 9 12) the Hoare annotation is: true [2020-11-07 00:52:42,829 INFO L269 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-11-07 00:52:42,829 INFO L269 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: true [2020-11-07 00:52:42,829 INFO L269 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: true [2020-11-07 00:52:42,829 INFO L269 CegarLoopResult]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2020-11-07 00:52:42,829 INFO L269 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: true [2020-11-07 00:52:42,829 INFO L269 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: true [2020-11-07 00:52:42,830 INFO L269 CegarLoopResult]: At program point get_dummyEXIT(lines 9 12) the Hoare annotation is: true [2020-11-07 00:52:42,830 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,830 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,830 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,830 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:52:42,830 INFO L262 CegarLoopResult]: At program point L27(lines 14 34) the Hoare annotation is: false [2020-11-07 00:52:42,830 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 14 34) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-11-07 00:52:42,831 INFO L262 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)) [2020-11-07 00:52:42,831 INFO L262 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)) [2020-11-07 00:52:42,831 INFO L262 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)) [2020-11-07 00:52:42,831 INFO L262 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)) [2020-11-07 00:52:42,831 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 00:52:42,831 INFO L262 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 00:52:42,832 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 00:52:42,832 INFO L262 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))) [2020-11-07 00:52:42,832 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 00:52:42,832 INFO L262 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: false [2020-11-07 00:52:42,832 INFO L262 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: false [2020-11-07 00:52:42,832 INFO L262 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: false [2020-11-07 00:52:42,833 INFO L262 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)) [2020-11-07 00:52:42,833 INFO L262 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)) [2020-11-07 00:52:42,833 INFO L262 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)) [2020-11-07 00:52:42,833 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 00:52:42,833 INFO L262 CegarLoopResult]: At program point L20-4(lines 20 21) the Hoare annotation is: false [2020-11-07 00:52:42,833 INFO L262 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 00:52:42,834 INFO L262 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)) [2020-11-07 00:52:42,834 INFO L262 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-11-07 00:52:42,834 INFO L262 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: false [2020-11-07 00:52:42,834 INFO L262 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)) [2020-11-07 00:52:42,835 INFO L262 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)) [2020-11-07 00:52:42,835 INFO L262 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)) [2020-11-07 00:52:42,835 INFO L262 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)) [2020-11-07 00:52:42,835 INFO L262 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)) [2020-11-07 00:52:42,835 INFO L262 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)) [2020-11-07 00:52:42,836 INFO L262 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)) [2020-11-07 00:52:42,836 INFO L262 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)) [2020-11-07 00:52:42,836 INFO L262 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)) [2020-11-07 00:52:42,836 INFO L262 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)) [2020-11-07 00:52:42,837 INFO L262 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)) [2020-11-07 00:52:42,837 INFO L262 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: false [2020-11-07 00:52:42,837 INFO L262 CegarLoopResult]: At program point L21-8(line 21) the Hoare annotation is: false [2020-11-07 00:52:42,837 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 14 34) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-11-07 00:52:42,837 INFO L262 CegarLoopResult]: At program point L21-9(line 21) the Hoare annotation is: false [2020-11-07 00:52:42,837 INFO L262 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)) [2020-11-07 00:52:42,838 INFO L262 CegarLoopResult]: At program point L21-11(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)) (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)) [2020-11-07 00:52:42,838 INFO L262 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)) [2020-11-07 00:52:42,838 INFO L262 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-11-07 00:52:42,838 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 14 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 00:52:42,838 INFO L262 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)) [2020-11-07 00:52:42,839 INFO L262 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: false [2020-11-07 00:52:42,839 INFO L262 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))) [2020-11-07 00:52:42,839 INFO L262 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)) [2020-11-07 00:52:42,839 INFO L262 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)) [2020-11-07 00:52:42,839 INFO L262 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)) [2020-11-07 00:52:42,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:52:42 BoogieIcfgContainer [2020-11-07 00:52:42,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:52:42,862 INFO L168 Benchmark]: Toolchain (without parser) took 4302.98 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 128.5 MB in the beginning and 122.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 96.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:42,863 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 124.5 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:52:42,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.61 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 118.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:42,865 INFO L168 Benchmark]: Boogie Preprocessor took 35.99 ms. Allocated memory is still 151.0 MB. Free memory was 118.5 MB in the beginning and 117.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:42,866 INFO L168 Benchmark]: RCFGBuilder took 482.80 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 131.2 MB in the end (delta: -14.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:42,867 INFO L168 Benchmark]: TraceAbstraction took 3487.75 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 130.7 MB in the beginning and 122.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 97.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:42,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 124.5 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 281.61 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 118.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.99 ms. Allocated memory is still 151.0 MB. Free memory was 118.5 MB in the beginning and 117.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 482.80 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 131.2 MB in the end (delta: -14.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3487.75 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 130.7 MB in the beginning and 122.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 97.9 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: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 227 SDtfs, 165 SDslu, 464 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, 0.5s 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 79 LocationsWithAnnotation, 91 PreInvPairs, 108 NumberOfFragments, 647 HoareAnnotationTreeSize, 91 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 79 FomulaSimplificationsInter, 476 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...