/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/bitvector-regression/signextension2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:14:58,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:14:58,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:14:58,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:14:58,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:14:58,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:14:58,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:14:58,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:14:58,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:14:58,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:14:58,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:14:58,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:14:58,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:14:58,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:14:58,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:14:58,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:14:58,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:14:58,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:14:58,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:14:58,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:14:58,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:14:58,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:14:58,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:14:58,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:14:58,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:14:58,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:14:58,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:14:58,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:14:58,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:14:58,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:14:58,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:14:58,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:14:58,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:14:58,677 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:14:58,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:14:58,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:14:58,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:14:58,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:14:58,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:14:58,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:14:58,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:14:58,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:14:58,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:14:58,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:14:58,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:14:58,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:14:58,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:14:58,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:14:58,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:14:58,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:14:58,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:14:58,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:14:58,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:14:58,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:14:58,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:14:59,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:14:59,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:14:59,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:14:59,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:14:59,087 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:14:59,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-12-21 23:14:59,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54724285/c0ffa37f1c9d4e31af2e96d0430a8006/FLAGf24aad97e [2020-12-21 23:14:59,910 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:14:59,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-12-21 23:14:59,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54724285/c0ffa37f1c9d4e31af2e96d0430a8006/FLAGf24aad97e [2020-12-21 23:15:00,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54724285/c0ffa37f1c9d4e31af2e96d0430a8006 [2020-12-21 23:15:00,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:15:00,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:15:00,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:15:00,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:15:00,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:15:00,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552a547f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00, skipping insertion in model container [2020-12-21 23:15:00,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:15:00,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:15:00,460 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-1.c[589,602] [2020-12-21 23:15:00,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:15:00,475 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:15:00,492 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-1.c[589,602] [2020-12-21 23:15:00,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:15:00,514 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:15:00,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00 WrapperNode [2020-12-21 23:15:00,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:15:00,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:15:00,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:15:00,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:15:00,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:15:00,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:15:00,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:15:00,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:15:00,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (1/1) ... [2020-12-21 23:15:00,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:15:00,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:15:00,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:15:00,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:15:00,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (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 [2020-12-21 23:15:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:15:00,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:15:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:15:00,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:15:00,896 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:15:00,896 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-21 23:15:00,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:15:00 BoogieIcfgContainer [2020-12-21 23:15:00,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:15:00,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:15:00,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:15:00,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:15:00,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:15:00" (1/3) ... [2020-12-21 23:15:00,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193aef42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:15:00, skipping insertion in model container [2020-12-21 23:15:00,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:15:00" (2/3) ... [2020-12-21 23:15:00,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193aef42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:15:00, skipping insertion in model container [2020-12-21 23:15:00,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:15:00" (3/3) ... [2020-12-21 23:15:00,910 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2020-12-21 23:15:00,917 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:15:00,922 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:15:00,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:15:01,004 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:15:01,004 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:15:01,004 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:15:01,004 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:15:01,004 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:15:01,005 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:15:01,005 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:15:01,005 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:15:01,035 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-21 23:15:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-21 23:15:01,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:15:01,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-21 23:15:01,049 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:15:01,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:15:01,057 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-12-21 23:15:01,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:15:01,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226042751] [2020-12-21 23:15:01,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:15:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:15:01,663 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2020-12-21 23:15:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:15:01,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226042751] [2020-12-21 23:15:01,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:15:01,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:15:01,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933497216] [2020-12-21 23:15:01,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:15:01,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:15:01,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:15:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:01,698 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-12-21 23:15:01,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:15:01,723 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-21 23:15:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:15:01,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-21 23:15:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:15:01,733 INFO L225 Difference]: With dead ends: 11 [2020-12-21 23:15:01,734 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:15:01,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:15:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:15:01,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:15:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:15:01,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:15:01,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-21 23:15:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:15:01,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:15:01,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:15:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:15:01,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:15:01,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:15:01,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:15:01,821 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:15:01,821 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:15:01,821 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:15:01,821 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:15:01,821 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2020-12-21 23:15:01,822 INFO L185 CegarLoopUtils]: At program point L20(lines 5 21) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~castToLong~0 18446744073709551616))) (let ((.cse1 (* 18446744073709551616 (div ULTIMATE.start_main_~castToULong~0 18446744073709551616))) (.cse0 (* 18446744073709551616 .cse2))) (and (<= ULTIMATE.start_main_~castToLong~0 (+ .cse0 4294967295)) (<= ULTIMATE.start_main_~castToULong~0 (+ .cse1 4294967295)) (< (+ .cse1 4294967294) ULTIMATE.start_main_~castToULong~0) (<= .cse2 0) (= (+ ULTIMATE.start_main_~castToLong2~0 1) 0) (<= ULTIMATE.start_main_~castToULong~0 4294967295) (= (+ ULTIMATE.start_main_~castToInt~0 1) 0) (< (+ .cse0 4294967294) ULTIMATE.start_main_~castToLong~0)))) [2020-12-21 23:15:01,822 INFO L185 CegarLoopUtils]: At program point L15(lines 5 21) the Hoare annotation is: false [2020-12-21 23:15:01,823 INFO L189 CegarLoopUtils]: For program point L13(lines 13 16) no Hoare annotation was computed. [2020-12-21 23:15:01,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:15:01 BoogieIcfgContainer [2020-12-21 23:15:01,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:15:01,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:15:01,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:15:01,845 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:15:01,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:15:00" (3/4) ... [2020-12-21 23:15:01,850 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:15:01,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-21 23:15:01,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:15:01,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:15:01,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:15:01,901 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/bitvector-regression/signextension2-1.c-witness.graphml [2020-12-21 23:15:01,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:15:01,903 INFO L168 Benchmark]: Toolchain (without parser) took 1623.50 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 102.7 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,903 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 153.1 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:15:01,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.09 ms. Allocated memory is still 153.1 MB. Free memory was 127.5 MB in the beginning and 118.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.26 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 117.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,906 INFO L168 Benchmark]: Boogie Preprocessor took 17.56 ms. Allocated memory is still 153.1 MB. Free memory was 116.9 MB in the beginning and 116.0 MB in the end (delta: 830.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,907 INFO L168 Benchmark]: RCFGBuilder took 318.56 ms. Allocated memory is still 153.1 MB. Free memory was 115.9 MB in the beginning and 105.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,908 INFO L168 Benchmark]: TraceAbstraction took 943.77 ms. Allocated memory is still 153.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 193.8 kB). Peak memory consumption was 294.9 kB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,908 INFO L168 Benchmark]: Witness Printer took 56.44 ms. Allocated memory is still 153.1 MB. Free memory was 104.8 MB in the beginning and 102.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:15:01,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 153.1 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 234.09 ms. Allocated memory is still 153.1 MB. Free memory was 127.5 MB in the beginning and 118.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.26 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 117.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.56 ms. Allocated memory is still 153.1 MB. Free memory was 116.9 MB in the beginning and 116.0 MB in the end (delta: 830.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 318.56 ms. Allocated memory is still 153.1 MB. Free memory was 115.9 MB in the beginning and 105.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 943.77 ms. Allocated memory is still 153.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 193.8 kB). Peak memory consumption was 294.9 kB. Max. memory is 8.0 GB. * Witness Printer took 56.44 ms. Allocated memory is still 153.1 MB. Free memory was 104.8 MB in the beginning and 102.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ((((((castToLong <= 18446744073709551616 * (castToLong / 18446744073709551616) + 4294967295 && castToULong <= 18446744073709551616 * (castToULong / 18446744073709551616) + 4294967295) && 18446744073709551616 * (castToULong / 18446744073709551616) + 4294967294 < castToULong) && castToLong / 18446744073709551616 <= 0) && castToLong2 + 1 == 0) && castToULong <= 4294967295) && castToInt + 1 == 0) && 18446744073709551616 * (castToLong / 18446744073709551616) + 4294967294 < castToLong - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 56 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...