/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/loop-lit/cggmp2005.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:55:45,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:55:45,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:55:45,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:55:45,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:55:45,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:55:45,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:55:45,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:55:45,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:55:45,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:55:45,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:55:45,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:55:45,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:55:45,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:55:45,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:55:45,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:55:45,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:55:45,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:55:45,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:55:45,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:55:45,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:55:45,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:55:45,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:55:45,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:55:45,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:55:45,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:55:45,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:55:45,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:55:45,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 14:55:45,523 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:55:45,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:55:45,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:55:45,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:55:45,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:55:45,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:55:45,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:55:45,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:55:45,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:55:45,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:55:45,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:55:45,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:55:45,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:55:45,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:55:45,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:55:45,528 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:55:45,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:55:45,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:55:45,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:55:45,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:55:45,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:55:45,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:55:45,529 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:55:45,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:55:45,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:55:45,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:55:45,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:55:45,870 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:55:45,871 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005.i [2020-07-17 14:55:45,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d023b5e5/df894cdff2ce4097bee27acc0bbfdab5/FLAG2fa5f697d [2020-07-17 14:55:46,466 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:55:46,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005.i [2020-07-17 14:55:46,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d023b5e5/df894cdff2ce4097bee27acc0bbfdab5/FLAG2fa5f697d [2020-07-17 14:55:46,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d023b5e5/df894cdff2ce4097bee27acc0bbfdab5 [2020-07-17 14:55:46,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:55:46,884 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:55:46,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:55:46,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:55:46,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:55:46,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:55:46" (1/1) ... [2020-07-17 14:55:46,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129bb515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:46, skipping insertion in model container [2020-07-17 14:55:46,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:55:46" (1/1) ... [2020-07-17 14:55:46,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:55:46,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:55:47,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:55:47,112 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:55:47,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:55:47,148 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:55:47,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47 WrapperNode [2020-07-17 14:55:47,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:55:47,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:55:47,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:55:47,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:55:47,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (1/1) ... [2020-07-17 14:55:47,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:55:47,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:55:47,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:55:47,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:55:47,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (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 [2020-07-17 14:55:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:55:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:55:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 14:55:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 14:55:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 14:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 14:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 14:55:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:55:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:55:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:55:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:55:47,557 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:55:47,558 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:55:47,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:55:47 BoogieIcfgContainer [2020-07-17 14:55:47,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:55:47,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:55:47,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:55:47,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:55:47,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:55:46" (1/3) ... [2020-07-17 14:55:47,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2975c2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:55:47, skipping insertion in model container [2020-07-17 14:55:47,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:55:47" (2/3) ... [2020-07-17 14:55:47,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2975c2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:55:47, skipping insertion in model container [2020-07-17 14:55:47,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:55:47" (3/3) ... [2020-07-17 14:55:47,573 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005.i [2020-07-17 14:55:47,584 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:55:47,592 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:55:47,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:55:47,635 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:55:47,636 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:55:47,636 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:55:47,636 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:55:47,637 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:55:47,637 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:55:47,637 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:55:47,637 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:55:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-17 14:55:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 14:55:47,666 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:55:47,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:55:47,668 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:55:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:55:47,675 INFO L82 PathProgramCache]: Analyzing trace with hash -714485069, now seen corresponding path program 1 times [2020-07-17 14:55:47,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:55:47,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501536022] [2020-07-17 14:55:47,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:55:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:55:47,878 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:55:47,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501536022] [2020-07-17 14:55:47,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:55:47,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 14:55:47,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751105818] [2020-07-17 14:55:47,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 14:55:47,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:55:47,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 14:55:47,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 14:55:47,916 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-07-17 14:55:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:55:48,173 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2020-07-17 14:55:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 14:55:48,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-17 14:55:48,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:55:48,195 INFO L225 Difference]: With dead ends: 37 [2020-07-17 14:55:48,196 INFO L226 Difference]: Without dead ends: 18 [2020-07-17 14:55:48,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:55:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-17 14:55:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-07-17 14:55:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-17 14:55:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-07-17 14:55:48,264 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2020-07-17 14:55:48,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:55:48,266 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-07-17 14:55:48,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 14:55:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-07-17 14:55:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 14:55:48,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:55:48,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:55:48,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:55:48,272 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:55:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:55:48,273 INFO L82 PathProgramCache]: Analyzing trace with hash 673132007, now seen corresponding path program 1 times [2020-07-17 14:55:48,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:55:48,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943672707] [2020-07-17 14:55:48,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:55:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:55:50,849 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:55:50,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943672707] [2020-07-17 14:55:50,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:55:50,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 14:55:50,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824294515] [2020-07-17 14:55:50,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 14:55:50,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:55:50,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 14:55:50,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-17 14:55:50,854 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 9 states. [2020-07-17 14:55:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:55:50,972 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-07-17 14:55:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 14:55:50,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-07-17 14:55:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:55:50,975 INFO L225 Difference]: With dead ends: 26 [2020-07-17 14:55:50,975 INFO L226 Difference]: Without dead ends: 21 [2020-07-17 14:55:50,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-17 14:55:50,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-17 14:55:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-07-17 14:55:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-17 14:55:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-07-17 14:55:50,986 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 16 [2020-07-17 14:55:50,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:55:50,987 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-07-17 14:55:50,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 14:55:50,987 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-07-17 14:55:50,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 14:55:50,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:55:50,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:55:50,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:55:50,989 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:55:50,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:55:50,990 INFO L82 PathProgramCache]: Analyzing trace with hash 113219123, now seen corresponding path program 2 times [2020-07-17 14:55:50,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:55:50,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647643188] [2020-07-17 14:55:50,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:55:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:55:53,465 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:55:53,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647643188] [2020-07-17 14:55:53,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:55:53,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 14:55:53,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179031433] [2020-07-17 14:55:53,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 14:55:53,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:55:53,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 14:55:53,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-17 14:55:53,469 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 11 states. [2020-07-17 14:55:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:55:53,579 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-07-17 14:55:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 14:55:53,580 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-07-17 14:55:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:55:53,581 INFO L225 Difference]: With dead ends: 29 [2020-07-17 14:55:53,581 INFO L226 Difference]: Without dead ends: 24 [2020-07-17 14:55:53,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-17 14:55:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-17 14:55:53,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-07-17 14:55:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-17 14:55:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-07-17 14:55:53,590 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 19 [2020-07-17 14:55:53,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:55:53,591 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-07-17 14:55:53,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 14:55:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-07-17 14:55:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 14:55:53,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:55:53,592 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:55:53,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:55:53,593 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:55:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:55:53,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1401469543, now seen corresponding path program 3 times [2020-07-17 14:55:53,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:55:53,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493623956] [2020-07-17 14:55:53,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:55:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:55:56,130 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:55:56,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493623956] [2020-07-17 14:55:56,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:55:56,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-17 14:55:56,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414910917] [2020-07-17 14:55:56,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 14:55:56,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:55:56,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 14:55:56,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-07-17 14:55:56,133 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 13 states. [2020-07-17 14:55:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:55:56,265 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2020-07-17 14:55:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 14:55:56,266 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2020-07-17 14:55:56,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:55:56,267 INFO L225 Difference]: With dead ends: 32 [2020-07-17 14:55:56,268 INFO L226 Difference]: Without dead ends: 27 [2020-07-17 14:55:56,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-07-17 14:55:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-17 14:55:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-07-17 14:55:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-17 14:55:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-07-17 14:55:56,278 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2020-07-17 14:55:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:55:56,279 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-07-17 14:55:56,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 14:55:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-07-17 14:55:56,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 14:55:56,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:55:56,281 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:55:56,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 14:55:56,282 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:55:56,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:55:56,282 INFO L82 PathProgramCache]: Analyzing trace with hash -158025293, now seen corresponding path program 4 times [2020-07-17 14:55:56,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:55:56,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804117187] [2020-07-17 14:55:56,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:55:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:55:57,218 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:55:57,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804117187] [2020-07-17 14:55:57,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:55:57,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-17 14:55:57,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646769626] [2020-07-17 14:55:57,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 14:55:57,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:55:57,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 14:55:57,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-07-17 14:55:57,225 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 15 states. [2020-07-17 14:55:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:55:57,389 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-07-17 14:55:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 14:55:57,389 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2020-07-17 14:55:57,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:55:57,390 INFO L225 Difference]: With dead ends: 26 [2020-07-17 14:55:57,390 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 14:55:57,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-07-17 14:55:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 14:55:57,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 14:55:57,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 14:55:57,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 14:55:57,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-07-17 14:55:57,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:55:57,393 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 14:55:57,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 14:55:57,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 14:55:57,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 14:55:57,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 14:55:57,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 14:55:57,612 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 14:55:57,612 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 14:55:57,613 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 14:55:57,613 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 14:55:57,613 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 14:55:57,613 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 14:55:57,613 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-17 14:55:57,613 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-17 14:55:57,613 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-17 14:55:57,613 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-17 14:55:57,614 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-17 14:55:57,614 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 23) the Hoare annotation is: true [2020-07-17 14:55:57,614 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 23) the Hoare annotation is: true [2020-07-17 14:55:57,615 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-17 14:55:57,615 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~j~0)))) (and (<= 23 .cse0) (<= .cse0 23) (<= main_~i~0 (+ main_~j~0 2)))) [2020-07-17 14:55:57,615 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~j~0)))) (and (<= .cse0 21) (<= 21 .cse0) (<= main_~i~0 main_~j~0))) [2020-07-17 14:55:57,616 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (<= main_~i~0 1) (<= 1 main_~i~0)) [2020-07-17 14:55:57,616 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-17 14:55:57,616 INFO L264 CegarLoopResult]: At program point L17-2(lines 17 20) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~j~0)))) (and (<= .cse0 21) (<= 21 .cse0) (<= main_~i~0 (+ main_~j~0 3)))) [2020-07-17 14:55:57,616 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-17 14:55:57,616 INFO L264 CegarLoopResult]: At program point L17-3(lines 17 20) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~j~0)))) (and (<= .cse0 21) (<= 21 .cse0) (<= main_~i~0 (+ main_~j~0 3)) (< main_~j~0 main_~i~0))) [2020-07-17 14:55:57,617 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 23) the Hoare annotation is: true [2020-07-17 14:55:57,617 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-17 14:55:57,617 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2020-07-17 14:55:57,617 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 14:55:57,617 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 14:55:57,617 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2020-07-17 14:55:57,618 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 14:55:57,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 02:55:57 BoogieIcfgContainer [2020-07-17 14:55:57,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 14:55:57,645 INFO L168 Benchmark]: Toolchain (without parser) took 10761.66 ms. Allocated memory was 144.2 MB in the beginning and 247.5 MB in the end (delta: 103.3 MB). Free memory was 101.5 MB in the beginning and 144.2 MB in the end (delta: -42.7 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2020-07-17 14:55:57,646 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 144.2 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 14:55:57,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.51 ms. Allocated memory is still 144.2 MB. Free memory was 101.0 MB in the beginning and 91.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-17 14:55:57,648 INFO L168 Benchmark]: Boogie Preprocessor took 121.76 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 91.4 MB in the beginning and 181.7 MB in the end (delta: -90.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-17 14:55:57,649 INFO L168 Benchmark]: RCFGBuilder took 291.26 ms. Allocated memory is still 201.9 MB. Free memory was 181.7 MB in the beginning and 169.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-07-17 14:55:57,650 INFO L168 Benchmark]: TraceAbstraction took 10077.11 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 168.7 MB in the beginning and 144.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. [2020-07-17 14:55:57,655 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 144.2 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.51 ms. Allocated memory is still 144.2 MB. Free memory was 101.0 MB in the beginning and 91.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.76 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 91.4 MB in the beginning and 181.7 MB in the end (delta: -90.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 291.26 ms. Allocated memory is still 201.9 MB. Free memory was 181.7 MB in the beginning and 169.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10077.11 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 168.7 MB in the beginning and 144.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 17]: Loop Invariant Derived loop invariant: (i + 2 * j <= 21 && 21 <= i + 2 * j) && i <= j + 3 - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.7s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 24 SDslu, 327 SDs, 0 SdLazy, 306 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 33 SyntacticMatches, 13 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=4, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 47 PreInvPairs, 71 NumberOfFragments, 117 HoareAnnotationTreeSize, 47 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 285 FormulaSimplificationTreeSizeReductionInter, 0.1s 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...