/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/array-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:52:46,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:52:46,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:52:46,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:52:46,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:52:46,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:52:46,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:52:46,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:52:46,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:52:46,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:52:46,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:52:46,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:52:46,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:52:46,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:52:47,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:52:47,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:52:47,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:52:47,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:52:47,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:52:47,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:52:47,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:52:47,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:52:47,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:52:47,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:52:47,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:52:47,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:52:47,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:52:47,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:52:47,052 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 14:52:47,062 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:52:47,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:52:47,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:52:47,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:52:47,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:52:47,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:52:47,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:52:47,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:52:47,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:52:47,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:52:47,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:52:47,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:52:47,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:52:47,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:52:47,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:52:47,066 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:52:47,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:52:47,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:52:47,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:52:47,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:52:47,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:52:47,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:52:47,068 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:52:47,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:52:47,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:52:47,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:52:47,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:52:47,383 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:52:47,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-07-17 14:52:47,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5d6385e/858f5b7848b04fababc5c5818b16abf1/FLAGa475ed648 [2020-07-17 14:52:47,975 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:52:47,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-07-17 14:52:47,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5d6385e/858f5b7848b04fababc5c5818b16abf1/FLAGa475ed648 [2020-07-17 14:52:48,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5d6385e/858f5b7848b04fababc5c5818b16abf1 [2020-07-17 14:52:48,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:52:48,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:52:48,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:52:48,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:52:48,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:52:48,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373d817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48, skipping insertion in model container [2020-07-17 14:52:48,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:52:48,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:52:48,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:52:48,617 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:52:48,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:52:48,652 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:52:48,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48 WrapperNode [2020-07-17 14:52:48,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:52:48,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:52:48,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:52:48,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:52:48,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (1/1) ... [2020-07-17 14:52:48,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:52:48,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:52:48,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:52:48,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:52:48,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (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 14:52:48,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:52:48,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:52:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 14:52:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-07-17 14:52:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:52:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 14:52:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:52:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 14:52:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-17 14:52:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:52:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:52:49,138 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:52:49,139 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-17 14:52:49,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:52:49 BoogieIcfgContainer [2020-07-17 14:52:49,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:52:49,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:52:49,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:52:49,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:52:49,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:52:48" (1/3) ... [2020-07-17 14:52:49,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6740a2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:52:49, skipping insertion in model container [2020-07-17 14:52:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:52:48" (2/3) ... [2020-07-17 14:52:49,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6740a2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:52:49, skipping insertion in model container [2020-07-17 14:52:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:52:49" (3/3) ... [2020-07-17 14:52:49,155 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-07-17 14:52:49,170 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:52:49,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:52:49,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:52:49,230 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:52:49,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:52:49,230 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:52:49,230 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:52:49,230 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:52:49,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:52:49,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:52:49,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:52:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-07-17 14:52:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-17 14:52:49,273 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:52:49,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:52:49,275 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:52:49,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:52:49,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1392671971, now seen corresponding path program 1 times [2020-07-17 14:52:49,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:52:49,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490783632] [2020-07-17 14:52:49,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:52:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:49,550 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 14:52:49,555 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:52:49,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490783632] [2020-07-17 14:52:49,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:52:49,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 14:52:49,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794721837] [2020-07-17 14:52:49,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 14:52:49,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:52:49,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 14:52:49,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 14:52:49,582 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-07-17 14:52:49,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:52:49,862 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2020-07-17 14:52:49,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 14:52:49,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-07-17 14:52:49,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:52:49,888 INFO L225 Difference]: With dead ends: 94 [2020-07-17 14:52:49,888 INFO L226 Difference]: Without dead ends: 53 [2020-07-17 14:52:49,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 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 14:52:49,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-07-17 14:52:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-07-17 14:52:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-17 14:52:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-07-17 14:52:49,953 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 29 [2020-07-17 14:52:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:52:49,953 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-07-17 14:52:49,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 14:52:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-07-17 14:52:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-17 14:52:49,956 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:52:49,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:52:49,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:52:49,957 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:52:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:52:49,958 INFO L82 PathProgramCache]: Analyzing trace with hash 31734745, now seen corresponding path program 1 times [2020-07-17 14:52:49,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:52:49,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010126949] [2020-07-17 14:52:49,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:52:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:50,209 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 14:52:50,224 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:52:50,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010126949] [2020-07-17 14:52:50,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:52:50,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 14:52:50,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615771782] [2020-07-17 14:52:50,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 14:52:50,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:52:50,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 14:52:50,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-17 14:52:50,229 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 8 states. [2020-07-17 14:52:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:52:50,557 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-17 14:52:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 14:52:50,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-07-17 14:52:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:52:50,560 INFO L225 Difference]: With dead ends: 81 [2020-07-17 14:52:50,560 INFO L226 Difference]: Without dead ends: 54 [2020-07-17 14:52:50,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-07-17 14:52:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-17 14:52:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2020-07-17 14:52:50,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-17 14:52:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-07-17 14:52:50,582 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 29 [2020-07-17 14:52:50,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:52:50,583 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-07-17 14:52:50,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 14:52:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-07-17 14:52:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-17 14:52:50,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:52:50,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:52:50,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:52:50,587 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:52:50,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:52:50,588 INFO L82 PathProgramCache]: Analyzing trace with hash -579567659, now seen corresponding path program 1 times [2020-07-17 14:52:50,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:52:50,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749859006] [2020-07-17 14:52:50,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:52:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:50,866 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 14:52:50,886 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:52:50,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749859006] [2020-07-17 14:52:50,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:52:50,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 14:52:50,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347879436] [2020-07-17 14:52:50,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 14:52:50,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:52:50,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 14:52:50,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-17 14:52:50,889 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 10 states. [2020-07-17 14:52:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:52:51,192 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2020-07-17 14:52:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 14:52:51,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2020-07-17 14:52:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:52:51,195 INFO L225 Difference]: With dead ends: 87 [2020-07-17 14:52:51,195 INFO L226 Difference]: Without dead ends: 60 [2020-07-17 14:52:51,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-07-17 14:52:51,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-17 14:52:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-07-17 14:52:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-17 14:52:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-07-17 14:52:51,216 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 35 [2020-07-17 14:52:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:52:51,219 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-07-17 14:52:51,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 14:52:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-07-17 14:52:51,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-17 14:52:51,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:52:51,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:52:51,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:52:51,224 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:52:51,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:52:51,225 INFO L82 PathProgramCache]: Analyzing trace with hash 556324561, now seen corresponding path program 2 times [2020-07-17 14:52:51,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:52:51,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294401558] [2020-07-17 14:52:51,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:52:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:52:51,332 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 14:52:51,334 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:52:51,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294401558] [2020-07-17 14:52:51,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:52:51,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:52:51,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74924856] [2020-07-17 14:52:51,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:52:51,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:52:51,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:52:51,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:52:51,337 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2020-07-17 14:52:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:52:51,506 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-07-17 14:52:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 14:52:51,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-07-17 14:52:51,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:52:51,511 INFO L225 Difference]: With dead ends: 86 [2020-07-17 14:52:51,512 INFO L226 Difference]: Without dead ends: 71 [2020-07-17 14:52:51,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 14:52:51,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-17 14:52:51,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 57. [2020-07-17 14:52:51,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-17 14:52:51,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2020-07-17 14:52:51,542 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 41 [2020-07-17 14:52:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:52:51,542 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2020-07-17 14:52:51,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:52:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2020-07-17 14:52:51,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-17 14:52:51,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:52:51,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:52:51,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 14:52:51,548 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:52:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:52:51,548 INFO L82 PathProgramCache]: Analyzing trace with hash 272366111, now seen corresponding path program 1 times [2020-07-17 14:52:51,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:52:51,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458011065] [2020-07-17 14:52:51,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:52:51,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 14:52:51,560 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:290) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-17 14:52:51,566 INFO L168 Benchmark]: Toolchain (without parser) took 3190.33 ms. Allocated memory was 136.8 MB in the beginning and 249.0 MB in the end (delta: 112.2 MB). Free memory was 101.9 MB in the beginning and 213.7 MB in the end (delta: -111.8 MB). Peak memory consumption was 385.4 kB. Max. memory is 7.1 GB. [2020-07-17 14:52:51,567 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 136.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 14:52:51,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.74 ms. Allocated memory is still 136.8 MB. Free memory was 101.5 MB in the beginning and 91.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-17 14:52:51,569 INFO L168 Benchmark]: Boogie Preprocessor took 129.38 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 91.3 MB in the beginning and 178.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-17 14:52:51,572 INFO L168 Benchmark]: RCFGBuilder took 363.27 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 160.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-07-17 14:52:51,573 INFO L168 Benchmark]: TraceAbstraction took 2416.38 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 160.3 MB in the beginning and 213.7 MB in the end (delta: -53.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 14:52:51,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 136.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.74 ms. Allocated memory is still 136.8 MB. Free memory was 101.5 MB in the beginning and 91.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.38 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 91.3 MB in the beginning and 178.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 363.27 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 160.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2416.38 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 160.3 MB in the beginning and 213.7 MB in the end (delta: -53.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...