/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/Problem15_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:53:16,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:53:16,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:53:16,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:53:16,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:53:16,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:53:16,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:53:16,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:53:16,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:53:16,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:53:16,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:53:16,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:53:16,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:53:16,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:53:16,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:53:16,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:53:16,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:53:16,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:53:16,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:53:16,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:53:16,724 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 22:53:16,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:53:16,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:53:16,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:53:16,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:53:16,748 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:53:16,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:53:16,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:53:16,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:53:16,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:53:16,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:53:16,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:53:16,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:53:16,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:53:16,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:53:16,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:53:16,751 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:53:16,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:53:16,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:53:16,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:53:16,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:53:16,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:53:16,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:53:16,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:53:16,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:53:16,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:53:16,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:53:16,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:53:16,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:53:16,753 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 22:53:17,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:53:17,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:53:17,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:53:17,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:53:17,075 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:53:17,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label44.c [2019-11-06 22:53:17,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b9bcf51/666e2523f4e84172a946e1256de18792/FLAG7e9146a21 [2019-11-06 22:53:17,835 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:53:17,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label44.c [2019-11-06 22:53:17,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b9bcf51/666e2523f4e84172a946e1256de18792/FLAG7e9146a21 [2019-11-06 22:53:17,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b9bcf51/666e2523f4e84172a946e1256de18792 [2019-11-06 22:53:17,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:53:18,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:53:18,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:53:18,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:53:18,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:53:18,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:17" (1/1) ... [2019-11-06 22:53:18,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c304c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:18, skipping insertion in model container [2019-11-06 22:53:18,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:17" (1/1) ... [2019-11-06 22:53:18,022 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:53:18,116 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:53:19,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:53:19,015 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:53:19,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:53:19,316 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:53:19,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19 WrapperNode [2019-11-06 22:53:19,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:53:19,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:53:19,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:53:19,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:53:19,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (1/1) ... [2019-11-06 22:53:19,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:53:19,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:53:19,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:53:19,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:53:19,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (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 22:53:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:53:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:53:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:53:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-11-06 22:53:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:53:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:53:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-11-06 22:53:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:53:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:53:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:53:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:53:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:53:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:53:23,431 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:53:23,432 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:53:23,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:23 BoogieIcfgContainer [2019-11-06 22:53:23,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:53:23,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:53:23,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:53:23,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:53:23,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:53:17" (1/3) ... [2019-11-06 22:53:23,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441baa6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:23, skipping insertion in model container [2019-11-06 22:53:23,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:19" (2/3) ... [2019-11-06 22:53:23,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441baa6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:23, skipping insertion in model container [2019-11-06 22:53:23,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:23" (3/3) ... [2019-11-06 22:53:23,443 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label44.c [2019-11-06 22:53:23,455 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:53:23,465 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:53:23,481 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:53:23,521 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:53:23,521 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:53:23,521 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:53:23,522 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:53:23,522 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:53:23,522 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:53:23,522 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:53:23,522 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:53:23,552 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2019-11-06 22:53:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-06 22:53:23,567 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:23,568 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, 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 22:53:23,571 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:23,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1323114568, now seen corresponding path program 1 times [2019-11-06 22:53:23,587 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:23,587 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383924739] [2019-11-06 22:53:23,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:24,052 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 22:53:24,053 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383924739] [2019-11-06 22:53:24,055 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:24,055 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:53:24,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135421048] [2019-11-06 22:53:24,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:53:24,065 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:24,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:53:24,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:53:24,084 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2019-11-06 22:53:28,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:53:28,681 INFO L93 Difference]: Finished difference Result 1497 states and 2757 transitions. [2019-11-06 22:53:28,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:53:28,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2019-11-06 22:53:28,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:53:28,710 INFO L225 Difference]: With dead ends: 1497 [2019-11-06 22:53:28,710 INFO L226 Difference]: Without dead ends: 993 [2019-11-06 22:53:28,720 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:53:28,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2019-11-06 22:53:28,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 682. [2019-11-06 22:53:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2019-11-06 22:53:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1002 transitions. [2019-11-06 22:53:28,830 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1002 transitions. Word has length 72 [2019-11-06 22:53:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:53:28,831 INFO L462 AbstractCegarLoop]: Abstraction has 682 states and 1002 transitions. [2019-11-06 22:53:28,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:53:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1002 transitions. [2019-11-06 22:53:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-06 22:53:28,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:28,839 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, 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] [2019-11-06 22:53:28,839 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:28,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:28,839 INFO L82 PathProgramCache]: Analyzing trace with hash 380539372, now seen corresponding path program 1 times [2019-11-06 22:53:28,840 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:28,840 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71735081] [2019-11-06 22:53:28,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:29,063 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71735081] [2019-11-06 22:53:29,064 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:29,064 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:53:29,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866310994] [2019-11-06 22:53:29,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:53:29,072 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:29,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:53:29,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:53:29,073 INFO L87 Difference]: Start difference. First operand 682 states and 1002 transitions. Second operand 4 states. [2019-11-06 22:53:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:53:32,947 INFO L93 Difference]: Finished difference Result 2604 states and 3862 transitions. [2019-11-06 22:53:32,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:53:32,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2019-11-06 22:53:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:53:32,959 INFO L225 Difference]: With dead ends: 2604 [2019-11-06 22:53:32,959 INFO L226 Difference]: Without dead ends: 1928 [2019-11-06 22:53:32,962 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:53:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2019-11-06 22:53:33,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1617. [2019-11-06 22:53:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1617 states. [2019-11-06 22:53:33,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2218 transitions. [2019-11-06 22:53:33,036 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2218 transitions. Word has length 141 [2019-11-06 22:53:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:53:33,040 INFO L462 AbstractCegarLoop]: Abstraction has 1617 states and 2218 transitions. [2019-11-06 22:53:33,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:53:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2218 transitions. [2019-11-06 22:53:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-11-06 22:53:33,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:33,056 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, 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, 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 22:53:33,056 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1715878782, now seen corresponding path program 1 times [2019-11-06 22:53:33,057 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:33,058 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190681774] [2019-11-06 22:53:33,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 133 proven. 87 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 22:53:33,525 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190681774] [2019-11-06 22:53:33,525 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849939516] [2019-11-06 22:53:33,526 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 22:53:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:33,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-06 22:53:33,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:53:33,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 22:53:33,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-06 22:53:33,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:53:34,167 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 223 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:34,167 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:53:34,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-06 22:53:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 223 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:34,644 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1559637628] [2019-11-06 22:53:34,652 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 291 [2019-11-06 22:53:34,707 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:53:34,707 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:53:37,219 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-06 22:53:40,647 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:53:40,649 INFO L272 AbstractInterpreter]: Visited 129 different actions 253 times. Merged at 4 different actions 5 times. Never widened. Performed 530 root evaluator evaluations with a maximum evaluation depth of 14. Performed 530 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2019-11-06 22:53:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:40,654 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:53:42,526 INFO L227 lantSequenceWeakener]: Weakened 285 states. On average, predicates are now at 78.13% of their original sizes. [2019-11-06 22:53:42,527 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:53:42,637 INFO L553 sIntCurrentIteration]: We unified 289 AI predicates to 289 [2019-11-06 22:53:42,637 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:53:42,638 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:53:42,638 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 7, 7] total 24 [2019-11-06 22:53:42,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459511411] [2019-11-06 22:53:42,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:53:42,640 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:42,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-06 22:53:42,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:53:42,641 INFO L87 Difference]: Start difference. First operand 1617 states and 2218 transitions. Second operand 12 states. [2019-11-06 22:53:42,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:53:42,853 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:53:42,854 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: 6959#true or 9296#(or (and (= ~a2~0 1) (= (+ ~a4~0 89) 0) (<= (+ ~a0~0 217933) 0) (<= 1 main_~input~0) (<= main_~input~0 6) (<= 0 (+ ~a0~0 517859)) (= (+ ~a29~0 401505) 0)) (and (= ~a2~0 1) (= (+ ~a0~0 44) 0) (= (+ ~a4~0 89) 0) (<= 1 main_~input~0) (<= main_~input~0 6) (= (+ ~a29~0 127) 0))) ([#2{~a2~0 = [1;1]; ~a0~0 = [-517859;-217933]; ~a29~0 = [-401505;-401505]; main_~input~0 = [1;6]; ~a4~0 = [-89;-89]; }, {~a2~0 = [1;1]; ~a0~0 = [-44;-44]; ~a29~0 = [-127;-127]; main_~input~0 = [1;6]; ~a4~0 = [-89;-89]; }]) 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 22:53:42,865 INFO L168 Benchmark]: Toolchain (without parser) took 24860.95 ms. Allocated memory was 144.7 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 97.1 MB in the beginning and 229.7 MB in the end (delta: -132.6 MB). Peak memory consumption was 888.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:42,866 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:53:42,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1314.27 ms. Allocated memory was 144.7 MB in the beginning and 229.6 MB in the end (delta: 84.9 MB). Free memory was 96.9 MB in the beginning and 158.9 MB in the end (delta: -62.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:42,872 INFO L168 Benchmark]: Boogie Preprocessor took 227.52 ms. Allocated memory is still 229.6 MB. Free memory was 158.9 MB in the beginning and 146.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:42,873 INFO L168 Benchmark]: RCFGBuilder took 3887.07 ms. Allocated memory was 229.6 MB in the beginning and 271.1 MB in the end (delta: 41.4 MB). Free memory was 146.4 MB in the beginning and 160.0 MB in the end (delta: -13.6 MB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:42,878 INFO L168 Benchmark]: TraceAbstraction took 19423.88 ms. Allocated memory was 271.1 MB in the beginning and 1.2 GB in the end (delta: 895.0 MB). Free memory was 160.0 MB in the beginning and 229.7 MB in the end (delta: -69.7 MB). Peak memory consumption was 825.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:53:42,887 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 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1314.27 ms. Allocated memory was 144.7 MB in the beginning and 229.6 MB in the end (delta: 84.9 MB). Free memory was 96.9 MB in the beginning and 158.9 MB in the end (delta: -62.1 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 227.52 ms. Allocated memory is still 229.6 MB. Free memory was 158.9 MB in the beginning and 146.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3887.07 ms. Allocated memory was 229.6 MB in the beginning and 271.1 MB in the end (delta: 41.4 MB). Free memory was 146.4 MB in the beginning and 160.0 MB in the end (delta: -13.6 MB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19423.88 ms. Allocated memory was 271.1 MB in the beginning and 1.2 GB in the end (delta: 895.0 MB). Free memory was 160.0 MB in the beginning and 229.7 MB in the end (delta: -69.7 MB). Peak memory consumption was 825.3 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: 6959#true or 9296#(or (and (= ~a2~0 1) (= (+ ~a4~0 89) 0) (<= (+ ~a0~0 217933) 0) (<= 1 main_~input~0) (<= main_~input~0 6) (<= 0 (+ ~a0~0 517859)) (= (+ ~a29~0 401505) 0)) (and (= ~a2~0 1) (= (+ ~a0~0 44) 0) (= (+ ~a4~0 89) 0) (<= 1 main_~input~0) (<= main_~input~0 6) (= (+ ~a29~0 127) 0))) ([#2{~a2~0 = [1;1]; ~a0~0 = [-517859;-217933]; ~a29~0 = [-401505;-401505]; main_~input~0 = [1;6]; ~a4~0 = [-89;-89]; }, {~a2~0 = [1;1]; ~a0~0 = [-44;-44]; ~a29~0 = [-127;-127]; main_~input~0 = [1;6]; ~a4~0 = [-89;-89]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 6959#true or 9296#(or (and (= ~a2~0 1) (= (+ ~a4~0 89) 0) (<= (+ ~a0~0 217933) 0) (<= 1 main_~input~0) (<= main_~input~0 6) (<= 0 (+ ~a0~0 517859)) (= (+ ~a29~0 401505) 0)) (and (= ~a2~0 1) (= (+ ~a0~0 44) 0) (= (+ ~a4~0 89) 0) (<= 1 main_~input~0) (<= main_~input~0 6) (= (+ ~a29~0 127) 0))) ([#2{~a2~0 = [1;1]; ~a0~0 = [-517859;-217933]; ~a29~0 = [-401505;-401505]; main_~input~0 = [1;6]; ~a4~0 = [-89;-89]; }, {~a2~0 = [1;1]; ~a0~0 = [-44;-44]; ~a29~0 = [-127;-127]; main_~input~0 = [1;6]; ~a4~0 = [-89;-89]; }]): 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...