/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/loop-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:59:29,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:59:29,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:59:29,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:59:29,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:59:29,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:59:29,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:59:29,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:59:29,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:59:29,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:59:29,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:59:29,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:59:29,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:59:29,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:59:29,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:59:29,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:59:29,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:59:29,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:59:29,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:59:29,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:59:29,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:59:29,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:59:29,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:59:29,524 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:59:29,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:59:29,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:59:29,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:59:29,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:59:29,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:59:29,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:59:29,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:59:30,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:59:30,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:59:30,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:59:30,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:59:30,130 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:59:30,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2021-02-23 18:59:30,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bcfcc8e2/d5f82509cbe84d12a72e652591a4692f/FLAG4795c5e86 [2021-02-23 18:59:31,101 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:59:31,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i [2021-02-23 18:59:31,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bcfcc8e2/d5f82509cbe84d12a72e652591a4692f/FLAG4795c5e86 [2021-02-23 18:59:31,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bcfcc8e2/d5f82509cbe84d12a72e652591a4692f [2021-02-23 18:59:31,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:59:31,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:59:31,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:59:31,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:59:31,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:59:31,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1357425a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31, skipping insertion in model container [2021-02-23 18:59:31,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:59:31,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:59:31,756 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i[895,908] [2021-02-23 18:59:31,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:59:31,795 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:59:31,818 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i[895,908] [2021-02-23 18:59:31,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:59:31,852 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:59:31,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31 WrapperNode [2021-02-23 18:59:31,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:59:31,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:59:31,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:59:31,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:59:31,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (1/1) ... [2021-02-23 18:59:31,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:59:31,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:59:31,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:59:31,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:59:31,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (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 [2021-02-23 18:59:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:59:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:59:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:59:32,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 18:59:32,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 18:59:32,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:59:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:59:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:59:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:59:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:59:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:59:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:59:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 18:59:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 18:59:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:59:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:59:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:59:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:59:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:59:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:59:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:59:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:59:32,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:59:32,666 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:59:32,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:59:32 BoogieIcfgContainer [2021-02-23 18:59:32,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:59:32,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:59:32,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:59:32,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:59:32,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:59:31" (1/3) ... [2021-02-23 18:59:32,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e272b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:59:32, skipping insertion in model container [2021-02-23 18:59:32,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:31" (2/3) ... [2021-02-23 18:59:32,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e272b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:59:32, skipping insertion in model container [2021-02-23 18:59:32,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:59:32" (3/3) ... [2021-02-23 18:59:32,736 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2021-02-23 18:59:32,765 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:59:32,783 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:59:32,856 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:59:32,918 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:59:32,918 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:59:32,918 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:59:32,918 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:59:32,919 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:59:32,919 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:59:32,919 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:59:32,920 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:59:32,960 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2021-02-23 18:59:32,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 18:59:32,985 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:32,987 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] [2021-02-23 18:59:32,989 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:33,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1427682070, now seen corresponding path program 1 times [2021-02-23 18:59:33,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:33,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329195604] [2021-02-23 18:59:33,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:33,170 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:59:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:33,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:33,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:33,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:33,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:33,664 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 18:59:33,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:33,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:33,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:59:33,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329195604] [2021-02-23 18:59:33,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:59:33,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 18:59:33,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122220441] [2021-02-23 18:59:33,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 18:59:33,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:59:33,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 18:59:33,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:59:33,804 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2021-02-23 18:59:33,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:59:33,955 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2021-02-23 18:59:33,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 18:59:33,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-02-23 18:59:33,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:59:33,982 INFO L225 Difference]: With dead ends: 53 [2021-02-23 18:59:33,982 INFO L226 Difference]: Without dead ends: 31 [2021-02-23 18:59:33,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:59:34,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-02-23 18:59:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-02-23 18:59:34,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-02-23 18:59:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-02-23 18:59:34,110 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 28 [2021-02-23 18:59:34,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:59:34,111 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-02-23 18:59:34,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 18:59:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-02-23 18:59:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 18:59:34,114 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:34,114 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] [2021-02-23 18:59:34,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:59:34,116 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:34,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:34,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1433223196, now seen corresponding path program 1 times [2021-02-23 18:59:34,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:34,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833715442] [2021-02-23 18:59:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:34,142 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:59:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:34,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:34,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:34,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:34,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:59:34,320 WARN L141 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-02-23 18:59:34,322 WARN L147 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size 16 [2021-02-23 18:59:34,366 WARN L141 QuantifierPusher]: treesize reduction 13, result has 60.6 percent of original size [2021-02-23 18:59:34,370 WARN L147 QuantifierPusher]: treesize reduction 13, result has 60.6 percent of original size 20 [2021-02-23 18:59:34,403 WARN L141 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-02-23 18:59:34,405 WARN L147 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size 12 [2021-02-23 18:59:34,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:34,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:34,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:34,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:34,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:34,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:34,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:34,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:34,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:59:34,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833715442] [2021-02-23 18:59:34,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:59:34,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 18:59:34,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481609140] [2021-02-23 18:59:34,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 18:59:34,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:59:34,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 18:59:34,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-23 18:59:34,546 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 9 states. [2021-02-23 18:59:35,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:59:35,080 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-02-23 18:59:35,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 18:59:35,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2021-02-23 18:59:35,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:59:35,082 INFO L225 Difference]: With dead ends: 39 [2021-02-23 18:59:35,083 INFO L226 Difference]: Without dead ends: 34 [2021-02-23 18:59:35,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-02-23 18:59:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-02-23 18:59:35,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2021-02-23 18:59:35,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-02-23 18:59:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-02-23 18:59:35,097 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 28 [2021-02-23 18:59:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:59:35,098 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-02-23 18:59:35,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 18:59:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-02-23 18:59:35,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-23 18:59:35,099 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:35,100 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] [2021-02-23 18:59:35,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:59:35,100 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:35,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:35,102 INFO L82 PathProgramCache]: Analyzing trace with hash 322329265, now seen corresponding path program 1 times [2021-02-23 18:59:35,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:35,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207090456] [2021-02-23 18:59:35,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:37,272 WARN L141 QuantifierPusher]: treesize reduction 37, result has 66.1 percent of original size [2021-02-23 18:59:37,348 WARN L147 QuantifierPusher]: treesize reduction 37, result has 66.1 percent of original size 72 [2021-02-23 18:59:37,353 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-23 18:59:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:37,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:37,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:59:37,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:59:37,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:59:37,630 WARN L141 QuantifierPusher]: treesize reduction 26, result has 58.1 percent of original size [2021-02-23 18:59:37,637 WARN L147 QuantifierPusher]: treesize reduction 26, result has 58.1 percent of original size 36 [2021-02-23 18:59:37,704 WARN L141 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-02-23 18:59:37,710 WARN L147 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size 12 [2021-02-23 18:59:37,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:37,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:37,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:37,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:37,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:59:37,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:59:37,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-23 18:59:37,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-02-23 18:59:37,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 18:59:37,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:37,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:59:38,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:38,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-23 18:59:38,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:38,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:38,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207090456] [2021-02-23 18:59:38,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:59:38,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 18:59:38,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928869526] [2021-02-23 18:59:38,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 18:59:38,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:59:38,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 18:59:38,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-02-23 18:59:38,043 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 11 states. [2021-02-23 18:59:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:59:38,971 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-02-23 18:59:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 18:59:38,973 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2021-02-23 18:59:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:59:38,974 INFO L225 Difference]: With dead ends: 34 [2021-02-23 18:59:38,975 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:59:38,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2021-02-23 18:59:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:59:38,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:59:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:59:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:59:38,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-02-23 18:59:38,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:59:38,981 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:59:38,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 18:59:38,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:59:38,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:59:38,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:59:38,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:59:39,688 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-23 18:59:39,689 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-23 18:59:39,689 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-23 18:59:39,690 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-23 18:59:39,690 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-23 18:59:39,691 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,692 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,692 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-23 18:59:39,692 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-23 18:59:39,692 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-23 18:59:39,692 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-23 18:59:39,693 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-23 18:59:39,695 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-23 18:59:39,695 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,695 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,695 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,696 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,696 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:59:39,696 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-23 18:59:39,696 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-23 18:59:39,696 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-23 18:59:39,696 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-23 18:59:39,697 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-23 18:59:39,697 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (< 0 main_~cnt~0) (<= 0 main_~b~0) (<= .cse1 .cse0))) [2021-02-23 18:59:39,697 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (<= main_~a~0 main_~res~0) (<= main_~res~0 (+ main_~a~0 main_~b~0)) (<= main_~res~0 main_~a~0)) [2021-02-23 18:59:39,699 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-23 18:59:39,699 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-23 18:59:39,699 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-23 18:59:39,699 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-23 18:59:39,699 INFO L192 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: true [2021-02-23 18:59:39,700 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 38) the Hoare annotation is: true [2021-02-23 18:59:39,700 INFO L192 CegarLoopUtils]: At program point L25-1(line 25) the Hoare annotation is: true [2021-02-23 18:59:39,700 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 38) the Hoare annotation is: true [2021-02-23 18:59:39,700 INFO L192 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: true [2021-02-23 18:59:39,701 INFO L185 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: (let ((.cse1 (+ main_~a~0 main_~b~0)) (.cse0 (+ main_~res~0 main_~cnt~0 1))) (and (< 0 (+ main_~cnt~0 1)) (<= .cse0 .cse1) (<= .cse1 .cse0) (<= 0 main_~b~0))) [2021-02-23 18:59:39,701 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (<= 0 main_~b~0) [2021-02-23 18:59:39,701 INFO L185 CegarLoopUtils]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= 0 main_~b~0) (<= .cse1 .cse0) (<= main_~res~0 .cse0))) [2021-02-23 18:59:39,701 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 38) the Hoare annotation is: true [2021-02-23 18:59:39,702 INFO L185 CegarLoopUtils]: At program point L32-3(lines 32 35) the Hoare annotation is: (and (<= (+ main_~a~0 main_~b~0) main_~res~0) (< main_~res~0 (+ main_~a~0 main_~b~0 1)) (<= 0 main_~b~0)) [2021-02-23 18:59:39,703 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-23 18:59:39,709 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-23 18:59:39,709 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-23 18:59:39,710 INFO L192 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: true [2021-02-23 18:59:39,712 INFO L192 CegarLoopUtils]: At program point L26-2(line 26) the Hoare annotation is: true [2021-02-23 18:59:39,717 INFO L192 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-02-23 18:59:39,717 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-23 18:59:39,718 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2021-02-23 18:59:39,718 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:59:39,718 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:59:39,718 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 18:59:39,719 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 18:59:39,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:59:39 BoogieIcfgContainer [2021-02-23 18:59:39,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:59:39,760 INFO L168 Benchmark]: Toolchain (without parser) took 8370.97 ms. Allocated memory was 168.8 MB in the beginning and 204.5 MB in the end (delta: 35.7 MB). Free memory was 144.8 MB in the beginning and 165.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 114.3 MB. Max. memory is 8.0 GB. [2021-02-23 18:59:39,767 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 168.8 MB. Free memory is still 144.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:59:39,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.06 ms. Allocated memory is still 168.8 MB. Free memory was 143.7 MB in the beginning and 133.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:59:39,769 INFO L168 Benchmark]: Boogie Preprocessor took 67.97 ms. Allocated memory is still 168.8 MB. Free memory was 133.9 MB in the beginning and 132.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:59:39,774 INFO L168 Benchmark]: RCFGBuilder took 743.98 ms. Allocated memory is still 168.8 MB. Free memory was 132.4 MB in the beginning and 116.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:59:39,780 INFO L168 Benchmark]: TraceAbstraction took 7084.96 ms. Allocated memory was 168.8 MB in the beginning and 204.5 MB in the end (delta: 35.7 MB). Free memory was 116.3 MB in the beginning and 165.8 MB in the end (delta: -49.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:59:39,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 168.8 MB. Free memory is still 144.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 440.06 ms. Allocated memory is still 168.8 MB. Free memory was 143.7 MB in the beginning and 133.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.97 ms. Allocated memory is still 168.8 MB. Free memory was 133.9 MB in the beginning and 132.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 743.98 ms. Allocated memory is still 168.8 MB. Free memory was 132.4 MB in the beginning and 116.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7084.96 ms. Allocated memory was 168.8 MB in the beginning and 204.5 MB in the end (delta: 35.7 MB). Free memory was 116.3 MB in the beginning and 165.8 MB in the end (delta: -49.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((a + b <= res + cnt && 0 <= b) && res + cnt <= a + b) && res <= a + b - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 90 SDslu, 140 SDs, 0 SdLazy, 215 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 55 PreInvPairs, 69 NumberOfFragments, 171 HoareAnnotationTreeSize, 55 FomulaSimplifications, 151 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 41 FomulaSimplificationsInter, 1022 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...