/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:51:55,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:51:55,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:51:55,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:51:55,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:51:55,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:51:55,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:51:55,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:51:55,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:51:55,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:51:55,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:51:55,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:51:55,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:51:55,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:51:55,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:51:55,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:51:55,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:51:55,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:51:55,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:51:55,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:51:55,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:51:55,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:51:55,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:51:55,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:51:55,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:51:55,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:51:55,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:51:55,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:51:55,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:51:55,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:51:55,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:51:55,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:51:55,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:51:55,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:51:55,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:51:55,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:51:55,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:51:55,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:51:55,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:51:55,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:51:55,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:51:55,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:51:55,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:51:55,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:51:55,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:51:55,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:51:55,760 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:51:55,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:51:55,761 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:51:55,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:51:55,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:51:55,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:51:55,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:51:55,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:51:55,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:51:55,762 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:51:55,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:51:55,763 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:51:55,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:51:55,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:51:55,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:51:55,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:51:55,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:51:55,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:51:55,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:51:55,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:51:55,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:51:55,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:51:55,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:51:55,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:51:55,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:51:56,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:51:56,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:51:56,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:51:56,050 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:51:56,050 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:51:56,051 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label51.c [2019-11-06 22:51:56,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09af88ddf/0a01fc20eaa84e1098ffd2abcf0abb76/FLAG4459a1b94 [2019-11-06 22:51:56,660 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:51:56,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label51.c [2019-11-06 22:51:56,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09af88ddf/0a01fc20eaa84e1098ffd2abcf0abb76/FLAG4459a1b94 [2019-11-06 22:51:56,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09af88ddf/0a01fc20eaa84e1098ffd2abcf0abb76 [2019-11-06 22:51:56,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:51:56,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:51:56,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:51:56,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:51:56,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:51:56,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:51:56" (1/1) ... [2019-11-06 22:51:56,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e69e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:56, skipping insertion in model container [2019-11-06 22:51:56,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:51:56" (1/1) ... [2019-11-06 22:51:56,973 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:51:57,029 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:51:57,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:51:57,604 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:51:57,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:51:57,791 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:51:57,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57 WrapperNode [2019-11-06 22:51:57,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:51:57,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:51:57,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:51:57,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:51:57,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (1/1) ... [2019-11-06 22:51:57,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:51:57,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:51:57,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:51:57,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:51:57,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (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 [2019-11-06 22:51:58,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:51:58,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:51:58,079 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:51:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:51:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:51:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:51:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:51:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:51:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:51:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:51:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:51:59,791 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:51:59,791 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:51:59,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:51:59 BoogieIcfgContainer [2019-11-06 22:51:59,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:51:59,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:51:59,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:51:59,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:51:59,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:51:56" (1/3) ... [2019-11-06 22:51:59,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142766c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:51:59, skipping insertion in model container [2019-11-06 22:51:59,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:57" (2/3) ... [2019-11-06 22:51:59,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142766c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:51:59, skipping insertion in model container [2019-11-06 22:51:59,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:51:59" (3/3) ... [2019-11-06 22:51:59,801 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2019-11-06 22:51:59,811 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:51:59,820 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:51:59,832 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:51:59,866 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:51:59,866 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:51:59,866 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:51:59,866 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:51:59,866 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:51:59,867 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:51:59,867 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:51:59,867 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:51:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2019-11-06 22:51:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-06 22:51:59,907 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:51:59,908 INFO L410 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, 1, 1, 1, 1, 1, 1] [2019-11-06 22:51:59,910 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:51:59,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:51:59,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1352567654, now seen corresponding path program 1 times [2019-11-06 22:51:59,928 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:51:59,928 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902168884] [2019-11-06 22:51:59,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:52:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:52:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:52:00,288 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902168884] [2019-11-06 22:52:00,289 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:52:00,289 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:52:00,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937379578] [2019-11-06 22:52:00,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:52:00,300 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:52:00,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:52:00,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:52:00,318 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2019-11-06 22:52:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:52:01,775 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2019-11-06 22:52:01,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:52:01,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-11-06 22:52:01,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:52:01,794 INFO L225 Difference]: With dead ends: 688 [2019-11-06 22:52:01,794 INFO L226 Difference]: Without dead ends: 372 [2019-11-06 22:52:01,802 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:52:01,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-11-06 22:52:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2019-11-06 22:52:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2019-11-06 22:52:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 596 transitions. [2019-11-06 22:52:01,896 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 596 transitions. Word has length 41 [2019-11-06 22:52:01,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:52:01,897 INFO L462 AbstractCegarLoop]: Abstraction has 372 states and 596 transitions. [2019-11-06 22:52:01,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:52:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 596 transitions. [2019-11-06 22:52:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-06 22:52:01,903 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:52:01,903 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:52:01,904 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:52:01,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:52:01,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1876604734, now seen corresponding path program 1 times [2019-11-06 22:52:01,905 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:52:01,905 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290356120] [2019-11-06 22:52:01,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:52:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:52:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:52:02,131 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290356120] [2019-11-06 22:52:02,131 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:52:02,132 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:52:02,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649941393] [2019-11-06 22:52:02,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:52:02,134 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:52:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:52:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:52:02,135 INFO L87 Difference]: Start difference. First operand 372 states and 596 transitions. Second operand 5 states. [2019-11-06 22:52:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:52:03,589 INFO L93 Difference]: Finished difference Result 940 states and 1514 transitions. [2019-11-06 22:52:03,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 22:52:03,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2019-11-06 22:52:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:52:03,595 INFO L225 Difference]: With dead ends: 940 [2019-11-06 22:52:03,595 INFO L226 Difference]: Without dead ends: 574 [2019-11-06 22:52:03,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:52:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-11-06 22:52:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 564. [2019-11-06 22:52:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-11-06 22:52:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 831 transitions. [2019-11-06 22:52:03,637 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 831 transitions. Word has length 117 [2019-11-06 22:52:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:52:03,638 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 831 transitions. [2019-11-06 22:52:03,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:52:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 831 transitions. [2019-11-06 22:52:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-06 22:52:03,643 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:52:03,643 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:52:03,647 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:52:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:52:03,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1520330050, now seen corresponding path program 1 times [2019-11-06 22:52:03,648 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:52:03,648 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227800855] [2019-11-06 22:52:03,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:52:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:52:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:52:03,964 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227800855] [2019-11-06 22:52:03,964 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:52:03,965 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:52:03,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866262779] [2019-11-06 22:52:03,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:52:03,969 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:52:03,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:52:03,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:52:03,970 INFO L87 Difference]: Start difference. First operand 564 states and 831 transitions. Second operand 6 states. [2019-11-06 22:52:05,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:52:05,266 INFO L93 Difference]: Finished difference Result 1526 states and 2378 transitions. [2019-11-06 22:52:05,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:52:05,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2019-11-06 22:52:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:52:05,283 INFO L225 Difference]: With dead ends: 1526 [2019-11-06 22:52:05,284 INFO L226 Difference]: Without dead ends: 968 [2019-11-06 22:52:05,289 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:52:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2019-11-06 22:52:05,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 942. [2019-11-06 22:52:05,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2019-11-06 22:52:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1352 transitions. [2019-11-06 22:52:05,357 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1352 transitions. Word has length 181 [2019-11-06 22:52:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:52:05,366 INFO L462 AbstractCegarLoop]: Abstraction has 942 states and 1352 transitions. [2019-11-06 22:52:05,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:52:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1352 transitions. [2019-11-06 22:52:05,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-06 22:52:05,379 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:52:05,380 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:52:05,381 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:52:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:52:05,382 INFO L82 PathProgramCache]: Analyzing trace with hash -906348779, now seen corresponding path program 1 times [2019-11-06 22:52:05,382 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:52:05,382 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847554281] [2019-11-06 22:52:05,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:52:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:52:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:52:05,557 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847554281] [2019-11-06 22:52:05,557 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686074843] [2019-11-06 22:52:05,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:52:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:52:05,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:52:05,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:52:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:52:05,842 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:52:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:52:05,973 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [486901735] [2019-11-06 22:52:05,980 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 201 [2019-11-06 22:52:06,028 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:52:06,028 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:52:10,033 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:52:10,035 INFO L272 AbstractInterpreter]: Visited 88 different actions 88 times. Never merged. Never widened. Performed 215 root evaluator evaluations with a maximum evaluation depth of 13. Performed 215 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Never found a fixpoint. Largest state had 24 variables. [2019-11-06 22:52:10,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:52:10,040 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:52:13,271 INFO L227 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 78.01% of their original sizes. [2019-11-06 22:52:13,271 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:52:13,345 INFO L553 sIntCurrentIteration]: We unified 199 AI predicates to 199 [2019-11-06 22:52:13,346 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:52:13,346 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:52:13,347 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 5, 5] total 18 [2019-11-06 22:52:13,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530241856] [2019-11-06 22:52:13,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:52:13,348 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:52:13,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:52:13,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:52:13,349 INFO L87 Difference]: Start difference. First operand 942 states and 1352 transitions. Second operand 10 states. [2019-11-06 22:52:13,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:52:13,557 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:52:13,557 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at least one of both input predicates is unknown: 5425#true or 7025#(and (= ~inputF~0 6) (= ~inputA~0 1) (= ~inputC~0 3) (= ~a15~0 8) (= (+ ~a12~0 49) 0) (= ~inputB~0 2) (= ~a24~0 1) (= ~inputE~0 5) (= ~a21~0 7) (= ~inputD~0 4)) ([#1{~inputA~0 = [1;1]; ~a21~0 = [7;7]; ~inputB~0 = [2;2]; ~inputC~0 = [3;3]; ~inputF~0 = [6;6]; ~a12~0 = [-49;-49]; ~a15~0 = [8;8]; ~inputE~0 = [5;5]; ~inputD~0 = [4;4]; ~a24~0 = [1;1]; }]) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker$CheckHelper.check(SdHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker.checkCall(SdHoareTripleChecker.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.checkCall(EfficientHoareTripleChecker.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkCall(CachingHoareTripleChecker.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$CallSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:403) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1089) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:969) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) 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:316) 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) [2019-11-06 22:52:13,564 INFO L168 Benchmark]: Toolchain (without parser) took 16605.34 ms. Allocated memory was 146.3 MB in the beginning and 884.5 MB in the end (delta: 738.2 MB). Free memory was 101.9 MB in the beginning and 184.0 MB in the end (delta: -82.2 MB). Peak memory consumption was 656.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:52:13,566 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-06 22:52:13,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.22 ms. Allocated memory was 146.3 MB in the beginning and 207.1 MB in the end (delta: 60.8 MB). Free memory was 101.9 MB in the beginning and 166.1 MB in the end (delta: -64.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:52:13,572 INFO L168 Benchmark]: Boogie Preprocessor took 185.07 ms. Allocated memory is still 207.1 MB. Free memory was 166.1 MB in the beginning and 161.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:52:13,578 INFO L168 Benchmark]: RCFGBuilder took 1813.96 ms. Allocated memory was 207.1 MB in the beginning and 238.0 MB in the end (delta: 30.9 MB). Free memory was 161.0 MB in the beginning and 152.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:52:13,579 INFO L168 Benchmark]: TraceAbstraction took 13767.45 ms. Allocated memory was 238.0 MB in the beginning and 884.5 MB in the end (delta: 646.4 MB). Free memory was 152.9 MB in the beginning and 184.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 615.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:52:13,587 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 834.22 ms. Allocated memory was 146.3 MB in the beginning and 207.1 MB in the end (delta: 60.8 MB). Free memory was 101.9 MB in the beginning and 166.1 MB in the end (delta: -64.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 185.07 ms. Allocated memory is still 207.1 MB. Free memory was 166.1 MB in the beginning and 161.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1813.96 ms. Allocated memory was 207.1 MB in the beginning and 238.0 MB in the end (delta: 30.9 MB). Free memory was 161.0 MB in the beginning and 152.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13767.45 ms. Allocated memory was 238.0 MB in the beginning and 884.5 MB in the end (delta: 646.4 MB). Free memory was 152.9 MB in the beginning and 184.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 615.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at least one of both input predicates is unknown: 5425#true or 7025#(and (= ~inputF~0 6) (= ~inputA~0 1) (= ~inputC~0 3) (= ~a15~0 8) (= (+ ~a12~0 49) 0) (= ~inputB~0 2) (= ~a24~0 1) (= ~inputE~0 5) (= ~a21~0 7) (= ~inputD~0 4)) ([#1{~inputA~0 = [1;1]; ~a21~0 = [7;7]; ~inputB~0 = [2;2]; ~inputC~0 = [3;3]; ~inputF~0 = [6;6]; ~a12~0 = [-49;-49]; ~a15~0 = [8;8]; ~inputE~0 = [5;5]; ~inputD~0 = [4;4]; ~a24~0 = [1;1]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 5425#true or 7025#(and (= ~inputF~0 6) (= ~inputA~0 1) (= ~inputC~0 3) (= ~a15~0 8) (= (+ ~a12~0 49) 0) (= ~inputB~0 2) (= ~a24~0 1) (= ~inputE~0 5) (= ~a21~0 7) (= ~inputD~0 4)) ([#1{~inputA~0 = [1;1]; ~a21~0 = [7;7]; ~inputB~0 = [2;2]; ~inputC~0 = [3;3]; ~inputF~0 = [6;6]; ~a12~0 = [-49;-49]; ~a15~0 = [8;8]; ~inputE~0 = [5;5]; ~inputD~0 = [4;4]; ~a24~0 = [1;1]; }]): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...