/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 0.1.25-3af5e1f [2020-09-04 16:11:59,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:11:59,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:11:59,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:11:59,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:11:59,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:11:59,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:11:59,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:11:59,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:11:59,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:11:59,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:11:59,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:11:59,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:11:59,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:11:59,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:11:59,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:11:59,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:11:59,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:11:59,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:11:59,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:11:59,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:11:59,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:11:59,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:11:59,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:11:59,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:11:59,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:11:59,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:11:59,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:11:59,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:11:59,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:11:59,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:11:59,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:11:59,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:11:59,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:11:59,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:11:59,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:11:59,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:11:59,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:11:59,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:11:59,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:11:59,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:11:59,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:11:59,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:11:59,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:11:59,688 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:11:59,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:11:59,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:11:59,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:11:59,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:11:59,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:11:59,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:11:59,690 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:12:00,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:12:00,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:12:00,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:12:00,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:12:00,218 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:12:00,219 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-09-04 16:12:00,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/decb69d86/bbbfd78e858e4a8a9b5eac97890372ba/FLAG0ba67087c [2020-09-04 16:12:00,786 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:12:00,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-09-04 16:12:00,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/decb69d86/bbbfd78e858e4a8a9b5eac97890372ba/FLAG0ba67087c [2020-09-04 16:12:01,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/decb69d86/bbbfd78e858e4a8a9b5eac97890372ba [2020-09-04 16:12:01,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:12:01,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:12:01,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:12:01,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:12:01,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:12:01,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01, skipping insertion in model container [2020-09-04 16:12:01,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:12:01,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:12:01,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:12:01,422 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:12:01,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:12:01,459 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:12:01,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01 WrapperNode [2020-09-04 16:12:01,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:12:01,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:12:01,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:12:01,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:12:01,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... [2020-09-04 16:12:01,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:12:01,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:12:01,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:12:01,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:12:01,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:12:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:12:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:12:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:12:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:12:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:12:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:12:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:12:01,833 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:12:01,834 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:12:01,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:12:01 BoogieIcfgContainer [2020-09-04 16:12:01,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:12:01,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:12:01,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:12:01,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:12:01,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:12:01" (1/3) ... [2020-09-04 16:12:01,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70e2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:12:01, skipping insertion in model container [2020-09-04 16:12:01,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:01" (2/3) ... [2020-09-04 16:12:01,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70e2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:12:01, skipping insertion in model container [2020-09-04 16:12:01,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:12:01" (3/3) ... [2020-09-04 16:12:01,847 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-2.c [2020-09-04 16:12:01,859 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:12:01,869 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:12:01,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:12:01,914 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:12:01,914 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:12:01,914 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:12:01,914 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:12:01,915 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:12:01,915 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:12:01,915 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:12:01,915 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:12:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-09-04 16:12:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-04 16:12:01,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:01,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:01,941 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:01,949 INFO L82 PathProgramCache]: Analyzing trace with hash 49487317, now seen corresponding path program 1 times [2020-09-04 16:12:01,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:01,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487407051] [2020-09-04 16:12:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:02,031 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:02,628 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 14 [2020-09-04 16:12:02,797 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 21 [2020-09-04 16:12:03,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:12:03,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487407051] [2020-09-04 16:12:03,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:03,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 16:12:03,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558607793] [2020-09-04 16:12:03,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 16:12:03,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:03,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 16:12:03,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:12:03,173 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 8 states. [2020-09-04 16:12:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:03,489 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-09-04 16:12:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 16:12:03,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-09-04 16:12:03,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:03,501 INFO L225 Difference]: With dead ends: 23 [2020-09-04 16:12:03,501 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:12:03,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-04 16:12:03,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:12:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:12:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:12:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:12:03,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-04 16:12:03,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:03,540 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:12:03,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 16:12:03,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:12:03,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:12:03,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:12:03,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:12:03,847 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:12:03,847 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:12:03,847 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:12:03,847 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:12:03,848 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:12:03,848 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:12:03,848 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) the Hoare annotation is: false [2020-09-04 16:12:03,848 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 3 27) the Hoare annotation is: true [2020-09-04 16:12:03,849 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: false [2020-09-04 16:12:03,849 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 3 27) 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) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 16:12:03,850 INFO L264 CegarLoopResult]: At program point L24(line 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) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 16:12:03,850 INFO L264 CegarLoopResult]: At program point L21(lines 3 27) the Hoare annotation is: false [2020-09-04 16:12:03,850 INFO L264 CegarLoopResult]: At program point L19(lines 19 22) 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) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 16:12:03,851 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 3 27) 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) (<= (+ .cse3 1) 0) (= (+ main_~signedtosigned~0 1) 0) (<= main_~unsignedtounsigned~0 65535) (<= 0 (+ main_~allbits~0 1)) (< (+ (* 4294967296 .cse3) 4294967294) main_~signedtounsigned~0) (<= 0 (+ main_~unsignedtosigned~0 (* 65536 .cse1) 1)) (<= 0 .cse2))) [2020-09-04 16:12:03,851 INFO L264 CegarLoopResult]: At program point L10(line 10) 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))) [2020-09-04 16:12:03,851 INFO L264 CegarLoopResult]: At program point L9(line 9) 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)))) [2020-09-04 16:12:03,852 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (let ((.cse0 (div main_~allbits~0 65536))) (let ((.cse1 (* 65536 .cse0))) (and (<= main_~unsignedtosigned~0 65535) (<= (+ .cse0 1) 0) (= (+ main_~signedallbits~0 .cse1 65536) main_~allbits~0) (<= 0 (+ main_~allbits~0 1)) (<= 0 (+ main_~unsignedtosigned~0 .cse1 1))))) [2020-09-04 16:12:03,852 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (<= (+ (div main_~allbits~0 65536) 1) 0) (= (+ main_~signedallbits~0 1) 0) (<= 0 (+ main_~allbits~0 1))) [2020-09-04 16:12:03,852 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (let ((.cse0 (+ main_~allbits~0 1))) (and (<= .cse0 0) (<= 0 .cse0))) [2020-09-04 16:12:03,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:12:03 BoogieIcfgContainer [2020-09-04 16:12:03,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:12:03,890 INFO L168 Benchmark]: Toolchain (without parser) took 2719.10 ms. Allocated memory was 135.3 MB in the beginning and 224.4 MB in the end (delta: 89.1 MB). Free memory was 99.8 MB in the beginning and 137.7 MB in the end (delta: -37.9 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:12:03,891 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 135.3 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:12:03,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.76 ms. Allocated memory is still 135.3 MB. Free memory was 99.6 MB in the beginning and 90.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-04 16:12:03,895 INFO L168 Benchmark]: Boogie Preprocessor took 31.25 ms. Allocated memory is still 135.3 MB. Free memory was 90.0 MB in the beginning and 88.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:12:03,897 INFO L168 Benchmark]: RCFGBuilder took 346.32 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 88.6 MB in the beginning and 167.2 MB in the end (delta: -78.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:12:03,898 INFO L168 Benchmark]: TraceAbstraction took 2048.40 ms. Allocated memory was 198.7 MB in the beginning and 224.4 MB in the end (delta: 25.7 MB). Free memory was 166.4 MB in the beginning and 137.7 MB in the end (delta: 28.8 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:12:03,908 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 135.3 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.76 ms. Allocated memory is still 135.3 MB. Free memory was 99.6 MB in the beginning and 90.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.25 ms. Allocated memory is still 135.3 MB. Free memory was 90.0 MB in the beginning and 88.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.32 ms. Allocated memory was 135.3 MB in the beginning and 198.7 MB in the end (delta: 63.4 MB). Free memory was 88.6 MB in the beginning and 167.2 MB in the end (delta: -78.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2048.40 ms. Allocated memory was 198.7 MB in the beginning and 224.4 MB in the end (delta: 25.7 MB). Free memory was 166.4 MB in the beginning and 137.7 MB in the end (delta: 28.8 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 3]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: 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) && signedtounsigned / 4294967296 + 1 <= 0) && signedtosigned + 1 == 0) && unsignedtounsigned <= 65535) && 0 <= allbits + 1) && 4294967296 * (signedtounsigned / 4294967296) + 4294967294 < signedtounsigned) && 0 <= unsignedtosigned + 65536 * (allbits / 65536) + 1) && 0 <= signedallbits + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 33 SDslu, 20 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 19 LocationsWithAnnotation, 19 PreInvPairs, 23 NumberOfFragments, 501 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s 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...