/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/loop-lit/mcmillan2006.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:35:05,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:35:05,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:35:05,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:35:05,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:35:05,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:35:05,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:35:05,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:35:05,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:35:05,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:35:05,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:35:05,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:35:05,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:35:05,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:35:05,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:35:05,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:35:05,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:35:05,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:35:05,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:35:05,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:35:05,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:35:05,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:35:05,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:35:05,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:35:05,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:35:05,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:35:05,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:35:05,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:35:05,091 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 [2019-11-07 00:35:05,112 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:35:05,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:35:05,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:35:05,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:35:05,116 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:35:05,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:35:05,117 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:35:05,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:35:05,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:35:05,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:35:05,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:35:05,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:35:05,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:35:05,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:35:05,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:35:05,120 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:35:05,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:35:05,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:35:05,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:35:05,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:35:05,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:35:05,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:05,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:35:05,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:35:05,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:35:05,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:35:05,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:35:05,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:35:05,123 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 [2019-11-07 00:35:05,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:35:05,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:35:05,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:35:05,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:35:05,410 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:35:05,411 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2019-11-07 00:35:05,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84d8c55cc/96b2a3703a0c4a5dabcbd4f12cb7629b/FLAG2810ec969 [2019-11-07 00:35:05,949 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:35:05,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2019-11-07 00:35:05,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84d8c55cc/96b2a3703a0c4a5dabcbd4f12cb7629b/FLAG2810ec969 [2019-11-07 00:35:06,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84d8c55cc/96b2a3703a0c4a5dabcbd4f12cb7629b [2019-11-07 00:35:06,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:35:06,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:35:06,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:06,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:35:06,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:35:06,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:06,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a21fcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06, skipping insertion in model container [2019-11-07 00:35:06,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:06,487 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:35:06,529 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:35:06,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:06,869 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:35:06,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:06,902 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:35:06,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06 WrapperNode [2019-11-07 00:35:06,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:06,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:35:06,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:35:06,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:35:06,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:06,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:06,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:06,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:07,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:07,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:07,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (1/1) ... [2019-11-07 00:35:07,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:35:07,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:35:07,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:35:07,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:35:07,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (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 [2019-11-07 00:35:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:35:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:35:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:35:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:35:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:35:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:35:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:35:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:35:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:35:07,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:35:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:35:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:35:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:35:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:35:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:35:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:35:07,292 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:35:07,292 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 00:35:07,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:07 BoogieIcfgContainer [2019-11-07 00:35:07,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:35:07,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:35:07,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:35:07,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:35:07,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:35:06" (1/3) ... [2019-11-07 00:35:07,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a62b1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:07, skipping insertion in model container [2019-11-07 00:35:07,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:06" (2/3) ... [2019-11-07 00:35:07,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a62b1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:07, skipping insertion in model container [2019-11-07 00:35:07,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:07" (3/3) ... [2019-11-07 00:35:07,319 INFO L109 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2019-11-07 00:35:07,350 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:35:07,372 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:35:07,398 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:35:07,427 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:35:07,428 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:35:07,428 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:35:07,428 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:35:07,428 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:35:07,428 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:35:07,428 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:35:07,428 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:35:07,443 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-07 00:35:07,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 00:35:07,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:07,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:07,451 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:07,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1448943433, now seen corresponding path program 1 times [2019-11-07 00:35:07,463 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:07,464 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238283914] [2019-11-07 00:35:07,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:07,581 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238283914] [2019-11-07 00:35:07,582 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:07,582 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:35:07,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115982586] [2019-11-07 00:35:07,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:35:07,590 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:07,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:35:07,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:35:07,607 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-07 00:35:07,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:07,631 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2019-11-07 00:35:07,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:35:07,632 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-07 00:35:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:07,640 INFO L225 Difference]: With dead ends: 41 [2019-11-07 00:35:07,641 INFO L226 Difference]: Without dead ends: 20 [2019-11-07 00:35:07,644 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:35:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-07 00:35:07,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-07 00:35:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-07 00:35:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-07 00:35:07,684 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2019-11-07 00:35:07,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:07,685 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-07 00:35:07,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:35:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-07 00:35:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 00:35:07,686 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:07,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:07,686 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:07,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1815969073, now seen corresponding path program 1 times [2019-11-07 00:35:07,687 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:07,687 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420709268] [2019-11-07 00:35:07,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:07,822 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420709268] [2019-11-07 00:35:07,822 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:07,823 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:35:07,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770935755] [2019-11-07 00:35:07,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:35:07,829 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:07,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:35:07,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:35:07,830 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 5 states. [2019-11-07 00:35:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:07,910 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-07 00:35:07,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:35:07,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-07 00:35:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:07,912 INFO L225 Difference]: With dead ends: 34 [2019-11-07 00:35:07,912 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 00:35:07,914 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:35:07,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 00:35:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-11-07 00:35:07,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-07 00:35:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-07 00:35:07,927 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2019-11-07 00:35:07,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:07,928 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-07 00:35:07,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:35:07,928 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-07 00:35:07,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 00:35:07,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:07,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:07,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:07,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1419508495, now seen corresponding path program 1 times [2019-11-07 00:35:07,933 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:07,933 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946046736] [2019-11-07 00:35:07,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:08,284 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946046736] [2019-11-07 00:35:08,284 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455645901] [2019-11-07 00:35:08,285 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 [2019-11-07 00:35:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:08,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-07 00:35:08,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:35:08,415 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-07 00:35:08,415 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:35:08,420 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:35:08,420 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:35:08,420 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-11-07 00:35:08,472 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-07 00:35:08,473 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:35:08,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:35:08,476 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:35:08,476 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-11-07 00:35:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:08,535 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:35:08,575 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2019-11-07 00:35:08,588 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2019-11-07 00:35:08,589 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:35:08,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:35:08,592 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:35:08,595 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:35:08,596 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:35:08,596 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:14, output treesize:7 [2019-11-07 00:35:08,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:08,616 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1929256189] [2019-11-07 00:35:08,633 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-11-07 00:35:08,676 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:35:08,676 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:35:08,762 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:35:08,763 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 18 root evaluator evaluations with a maximum evaluation depth of 4. Performed 18 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 22 variables. [2019-11-07 00:35:08,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:08,768 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:35:08,802 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96% of their original sizes. [2019-11-07 00:35:08,803 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:35:08,808 INFO L553 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2019-11-07 00:35:08,809 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:35:08,809 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:35:08,809 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 8, 8] total 17 [2019-11-07 00:35:08,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870872949] [2019-11-07 00:35:08,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:35:08,811 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:08,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:35:08,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:35:08,812 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2019-11-07 00:35:08,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:35:09,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:09,021 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: 196#true or 332#(and (<= main_~n~0 2147483647) (<= 0 (+ main_~n~0 2147483648))) ([#1{main_~n~0 = [-2147483648;2147483647]; }]) 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) [2019-11-07 00:35:09,026 INFO L168 Benchmark]: Toolchain (without parser) took 2583.96 ms. Allocated memory was 140.0 MB in the beginning and 234.4 MB in the end (delta: 94.4 MB). Free memory was 104.6 MB in the beginning and 182.3 MB in the end (delta: -77.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,027 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.11 ms. Allocated memory is still 140.0 MB. Free memory was 104.4 MB in the beginning and 94.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,029 INFO L168 Benchmark]: Boogie Preprocessor took 115.00 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 94.5 MB in the beginning and 179.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,030 INFO L168 Benchmark]: RCFGBuilder took 274.77 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 166.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,031 INFO L168 Benchmark]: TraceAbstraction took 1722.60 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.6 MB in the beginning and 182.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,038 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 458.11 ms. Allocated memory is still 140.0 MB. Free memory was 104.4 MB in the beginning and 94.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.00 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 94.5 MB in the beginning and 179.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 274.77 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 166.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1722.60 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.6 MB in the beginning and 182.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 15.3 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: 196#true or 332#(and (<= main_~n~0 2147483647) (<= 0 (+ main_~n~0 2147483648))) ([#1{main_~n~0 = [-2147483648;2147483647]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 196#true or 332#(and (<= main_~n~0 2147483647) (<= 0 (+ main_~n~0 2147483648))) ([#1{main_~n~0 = [-2147483648;2147483647]; }]): 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...