/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/bitvector-regression/signextension-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:25:24,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:25:24,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:25:24,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:25:24,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:25:24,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:25:24,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:25:24,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:25:24,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:25:24,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:25:24,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:25:24,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:25:24,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:25:24,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:25:24,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:25:24,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:25:24,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:25:24,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:25:24,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:25:24,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:25:24,178 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 00:25:24,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:25:24,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:25:24,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:25:24,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:25:24,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:25:24,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:25:24,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:25:24,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:25:24,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:25:24,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:25:24,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:25:24,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:25:24,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:25:24,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:25:24,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:25:24,210 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:25:24,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:25:24,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:25:24,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:25:24,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:25:24,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:25:24,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:25:24,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:25:24,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:25:24,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:25:24,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:25:24,677 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:25:24,678 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:25:24,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-11-07 00:25:24,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2de43ed/7683cde9a7014f3ca56eb647b4502029/FLAGef3d0e2a1 [2020-11-07 00:25:25,338 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:25:25,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-11-07 00:25:25,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2de43ed/7683cde9a7014f3ca56eb647b4502029/FLAGef3d0e2a1 [2020-11-07 00:25:25,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2de43ed/7683cde9a7014f3ca56eb647b4502029 [2020-11-07 00:25:25,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:25:25,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:25:25,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:25,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:25:25,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:25:25,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b3ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25, skipping insertion in model container [2020-11-07 00:25:25,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:25:25,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:25:25,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:25,908 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:25:25,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:25,945 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:25:25,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25 WrapperNode [2020-11-07 00:25:25,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:25,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:25:25,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:25:25,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:25:25,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (1/1) ... [2020-11-07 00:25:25,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:25:25,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:25:25,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:25:25,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:25:25,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (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 00:25:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:25:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:25:26,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:25:26,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:25:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:25:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:25:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:25:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:25:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:25:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:25:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:25:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:25:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:25:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:25:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:25:26,626 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:25:26,626 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:25:26,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:26 BoogieIcfgContainer [2020-11-07 00:25:26,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:25:26,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:25:26,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:25:26,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:25:26,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:25" (1/3) ... [2020-11-07 00:25:26,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ae2243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:26, skipping insertion in model container [2020-11-07 00:25:26,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:25" (2/3) ... [2020-11-07 00:25:26,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ae2243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:26, skipping insertion in model container [2020-11-07 00:25:26,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:26" (3/3) ... [2020-11-07 00:25:26,638 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension-2.c [2020-11-07 00:25:26,654 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:25:26,658 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:25:26,672 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:25:26,698 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:25:26,699 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:25:26,699 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:25:26,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:25:26,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:25:26,699 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:25:26,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:25:26,700 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:25:26,718 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-07 00:25:26,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-07 00:25:26,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:26,743 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] [2020-11-07 00:25:26,743 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash 822971143, now seen corresponding path program 1 times [2020-11-07 00:25:26,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:26,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848352818] [2020-11-07 00:25:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:26,882 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:27,648 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 21 [2020-11-07 00:25:28,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:28,069 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 00:25:28,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848352818] [2020-11-07 00:25:28,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:28,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:25:28,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955922998] [2020-11-07 00:25:28,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:25:28,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:28,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:25:28,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:25:28,106 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 9 states. [2020-11-07 00:25:28,547 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-11-07 00:25:28,706 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-11-07 00:25:28,896 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-11-07 00:25:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:28,926 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-11-07 00:25:28,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:25:28,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-07 00:25:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:28,949 INFO L225 Difference]: With dead ends: 35 [2020-11-07 00:25:28,949 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:25:28,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:25:28,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:25:28,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:25:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:25:28,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:25:28,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-07 00:25:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:28,992 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:25:28,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:25:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:25:28,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:25:28,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:25:28,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:25:29,331 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-11-07 00:25:29,683 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-11-07 00:25:29,894 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-11-07 00:25:29,897 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,898 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,898 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,898 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,898 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,898 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,899 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,899 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,899 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,899 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,899 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,900 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:25:29,901 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 5 29) the Hoare annotation is: true [2020-11-07 00:25:29,901 INFO L262 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: false [2020-11-07 00:25:29,901 INFO L262 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false [2020-11-07 00:25:29,901 INFO L262 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (= (+ main_~signedtosigned~0 1) 0) (<= (+ .cse3 1) 0) (<= main_~unsignedtounsigned~0 65535) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-11-07 00:25:29,902 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 5 29) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (= (+ main_~signedtosigned~0 1) 0) (<= (+ .cse3 1) 0) (<= main_~unsignedtounsigned~0 65535) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-11-07 00:25:29,902 INFO L262 CegarLoopResult]: At program point L23(lines 5 29) the Hoare annotation is: false [2020-11-07 00:25:29,902 INFO L262 CegarLoopResult]: At program point L21(lines 21 24) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (= (+ main_~signedtosigned~0 1) 0) (<= (+ .cse3 1) 0) (<= main_~unsignedtounsigned~0 65535) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-11-07 00:25:29,903 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 5 29) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse3 (div main_~signedtounsigned~0 4294967296)) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (= (+ main_~signedtosigned~0 1) 0) (<= (+ .cse3 1) 0) (<= main_~unsignedtounsigned~0 65535) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-11-07 00:25:29,903 INFO L262 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse1 (div main_~allbits~0 65536)) (.cse2 (+ main_~signedallbits~0 1))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (<= .cse2 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-11-07 00:25:29,903 INFO L262 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~unsignedtounsigned~0 4294967296))) (.cse1 (div main_~allbits~0 65536))) (and (<= main_~unsignedtosigned~0 65535) (< (+ .cse0 65534) main_~unsignedtounsigned~0) (<= (+ .cse1 1) 0) (<= main_~unsignedtounsigned~0 (+ .cse0 65535)) (= (+ main_~signedallbits~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)))) [2020-11-07 00:25:29,904 INFO L262 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (let ((.cse0 (div main_~allbits~0 65536))) (and (<= main_~unsignedtosigned~0 65535) (<= (+ .cse0 1) 0) (<= 0 (+ main_~allbits~0 1)) (= (+ main_~signedallbits~0 (* .cse0 65536) 65536) main_~allbits~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse0) 1)))) [2020-11-07 00:25:29,904 INFO L262 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (<= (+ (div main_~allbits~0 65536) 1) 0) (= (+ main_~signedallbits~0 1) 0) (<= 0 (+ main_~allbits~0 1))) [2020-11-07 00:25:29,904 INFO L262 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (let ((.cse0 (+ main_~allbits~0 1))) (and (<= .cse0 0) (<= 0 .cse0))) [2020-11-07 00:25:29,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:25:29 BoogieIcfgContainer [2020-11-07 00:25:29,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:25:29,927 INFO L168 Benchmark]: Toolchain (without parser) took 4244.91 ms. Allocated memory was 177.2 MB in the beginning and 212.9 MB in the end (delta: 35.7 MB). Free memory was 134.2 MB in the beginning and 191.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 97.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:29,928 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 177.2 MB. Free memory was 150.7 MB in the beginning and 150.6 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:25:29,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.02 ms. Allocated memory is still 177.2 MB. Free memory was 161.8 MB in the beginning and 152.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:29,930 INFO L168 Benchmark]: Boogie Preprocessor took 34.55 ms. Allocated memory is still 177.2 MB. Free memory was 152.7 MB in the beginning and 151.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:29,931 INFO L168 Benchmark]: RCFGBuilder took 646.40 ms. Allocated memory is still 177.2 MB. Free memory was 151.3 MB in the beginning and 149.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:29,932 INFO L168 Benchmark]: TraceAbstraction took 3294.70 ms. Allocated memory was 177.2 MB in the beginning and 212.9 MB in the end (delta: 35.7 MB). Free memory was 149.4 MB in the beginning and 191.5 MB in the end (delta: -42.1 MB). Peak memory consumption was 113.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:25:29,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 177.2 MB. Free memory was 150.7 MB in the beginning and 150.6 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 235.02 ms. Allocated memory is still 177.2 MB. Free memory was 161.8 MB in the beginning and 152.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.55 ms. Allocated memory is still 177.2 MB. Free memory was 152.7 MB in the beginning and 151.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 646.40 ms. Allocated memory is still 177.2 MB. Free memory was 151.3 MB in the beginning and 149.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3294.70 ms. Allocated memory was 177.2 MB in the beginning and 212.9 MB in the end (delta: 35.7 MB). Free memory was 149.4 MB in the beginning and 191.5 MB in the end (delta: -42.1 MB). Peak memory consumption was 113.1 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: 5]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for main Derived contract for procedure main: ((((((((((unsignedtosigned <= 65535 && 4294967296 * (unsignedtounsigned / 4294967296) + 65534 < unsignedtounsigned) && allbits / 65536 + 1 <= 0) && unsignedtounsigned <= 4294967296 * (unsignedtounsigned / 4294967296) + 65535) && signedallbits + 1 <= 0) && signedtosigned + 1 == 0) && signedtounsigned / 4294967296 + 1 <= 0) && unsignedtounsigned <= 65535) && 4294967296 * (signedtounsigned / 4294967296) + 4294967294 < signedtounsigned) && 0 <= allbits + 1) && 0 <= unsignedtosigned + 65536 * (allbits / 65536) + 1) && 0 <= signedallbits + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 30 SDslu, 60 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 31 PreInvPairs, 35 NumberOfFragments, 543 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 31 FomulaSimplificationsInter, 300 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...