/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_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:53:45,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:53:45,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:53:45,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:53:45,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:53:45,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:53:45,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:53:45,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:53:45,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:53:45,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:53:45,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:53:45,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:53:45,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:53:45,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:53:45,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:53:45,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:53:45,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:53:45,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:53:45,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:53:45,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:53:45,142 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 22:53:45,165 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:53:45,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:53:45,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:53:45,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:53:45,168 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:53:45,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:53:45,168 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:53:45,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:53:45,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:53:45,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:53:45,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:53:45,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:53:45,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:53:45,169 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:53:45,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:53:45,170 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:53:45,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:53:45,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:53:45,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:53:45,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:53:45,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:53:45,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:53:45,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:53:45,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:53:45,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:53:45,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:53:45,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:53:45,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:53:45,172 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 22:53:45,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:53:45,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:53:45,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:53:45,459 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:53:45,460 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:53:45,461 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56.c [2019-11-06 22:53:45,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4e25894/c4aa07fce2e84fa58fa954d1ccb425bd/FLAGf83833e00 [2019-11-06 22:53:46,231 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:53:46,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label56.c [2019-11-06 22:53:46,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4e25894/c4aa07fce2e84fa58fa954d1ccb425bd/FLAGf83833e00 [2019-11-06 22:53:46,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4e25894/c4aa07fce2e84fa58fa954d1ccb425bd [2019-11-06 22:53:46,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:53:46,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:53:46,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:53:46,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:53:46,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:53:46,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:46" (1/1) ... [2019-11-06 22:53:46,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236bffb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:46, skipping insertion in model container [2019-11-06 22:53:46,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:46" (1/1) ... [2019-11-06 22:53:46,369 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:53:46,457 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:53:47,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:53:47,503 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:53:47,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:53:47,856 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:53:47,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47 WrapperNode [2019-11-06 22:53:47,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:53:47,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:53:47,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:53:47,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:53:47,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:47,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:47,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:47,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:47,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:48,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:48,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... [2019-11-06 22:53:48,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:53:48,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:53:48,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:53:48,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:53:48,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:53:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:53:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:53:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:53:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-11-06 22:53:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:53:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:53:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-11-06 22:53:48,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:53:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:53:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:53:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:53:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:53:48,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:53:51,241 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:53:51,241 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:53:51,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:51 BoogieIcfgContainer [2019-11-06 22:53:51,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:53:51,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:53:51,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:53:51,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:53:51,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:53:46" (1/3) ... [2019-11-06 22:53:51,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce0ebf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:51, skipping insertion in model container [2019-11-06 22:53:51,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:47" (2/3) ... [2019-11-06 22:53:51,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce0ebf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:51, skipping insertion in model container [2019-11-06 22:53:51,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:51" (3/3) ... [2019-11-06 22:53:51,251 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label56.c [2019-11-06 22:53:51,263 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:53:51,272 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:53:51,285 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:53:51,326 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:53:51,326 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:53:51,326 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:53:51,326 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:53:51,327 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:53:51,327 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:53:51,327 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:53:51,327 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:53:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2019-11-06 22:53:51,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-06 22:53:51,372 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:51,373 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] [2019-11-06 22:53:51,375 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:51,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2075233339, now seen corresponding path program 1 times [2019-11-06 22:53:51,390 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:51,391 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763905367] [2019-11-06 22:53:51,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:51,761 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 22:53:51,762 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763905367] [2019-11-06 22:53:51,763 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:51,763 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:53:51,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099840621] [2019-11-06 22:53:51,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:53:51,772 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:51,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:53:51,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:53:51,789 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2019-11-06 22:53:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:53:56,405 INFO L93 Difference]: Finished difference Result 1497 states and 2757 transitions. [2019-11-06 22:53:56,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:53:56,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2019-11-06 22:53:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:53:56,435 INFO L225 Difference]: With dead ends: 1497 [2019-11-06 22:53:56,435 INFO L226 Difference]: Without dead ends: 993 [2019-11-06 22:53:56,448 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 22:53:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2019-11-06 22:53:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 682. [2019-11-06 22:53:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2019-11-06 22:53:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1002 transitions. [2019-11-06 22:53:56,581 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1002 transitions. Word has length 39 [2019-11-06 22:53:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:53:56,582 INFO L462 AbstractCegarLoop]: Abstraction has 682 states and 1002 transitions. [2019-11-06 22:53:56,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:53:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1002 transitions. [2019-11-06 22:53:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-06 22:53:56,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:53:56,592 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, 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 22:53:56,593 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:53:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:53:56,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1497947422, now seen corresponding path program 1 times [2019-11-06 22:53:56,594 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:53:56,594 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478734688] [2019-11-06 22:53:56,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:53:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:53:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:53:56,782 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478734688] [2019-11-06 22:53:56,782 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:53:56,783 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:53:56,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156734937] [2019-11-06 22:53:56,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:53:56,788 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:53:56,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:53:56,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:53:56,789 INFO L87 Difference]: Start difference. First operand 682 states and 1002 transitions. Second operand 4 states. [2019-11-06 22:54:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:54:01,314 INFO L93 Difference]: Finished difference Result 2602 states and 3858 transitions. [2019-11-06 22:54:01,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:54:01,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-11-06 22:54:01,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:54:01,327 INFO L225 Difference]: With dead ends: 2602 [2019-11-06 22:54:01,328 INFO L226 Difference]: Without dead ends: 1926 [2019-11-06 22:54:01,332 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 22:54:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2019-11-06 22:54:01,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1924. [2019-11-06 22:54:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2019-11-06 22:54:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2563 transitions. [2019-11-06 22:54:01,406 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2563 transitions. Word has length 108 [2019-11-06 22:54:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:54:01,406 INFO L462 AbstractCegarLoop]: Abstraction has 1924 states and 2563 transitions. [2019-11-06 22:54:01,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:54:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2563 transitions. [2019-11-06 22:54:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-11-06 22:54:01,411 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:54:01,411 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:54:01,412 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:54:01,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:54:01,412 INFO L82 PathProgramCache]: Analyzing trace with hash -311064930, now seen corresponding path program 1 times [2019-11-06 22:54:01,412 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:54:01,413 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253077736] [2019-11-06 22:54:01,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:54:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:54:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 67 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 22:54:01,687 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253077736] [2019-11-06 22:54:01,688 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896505490] [2019-11-06 22:54:01,688 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 22:54:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:54:01,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-06 22:54:01,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:54:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-11-06 22:54:02,037 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:54:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 68 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:54:02,287 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1071977747] [2019-11-06 22:54:02,297 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 214 [2019-11-06 22:54:02,342 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:54:02,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:54:05,509 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-06 22:54:06,333 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:54:06,335 INFO L272 AbstractInterpreter]: Visited 103 different actions 201 times. Merged at 4 different actions 5 times. Never widened. Performed 453 root evaluator evaluations with a maximum evaluation depth of 13. Performed 453 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2019-11-06 22:54:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:54:06,340 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:54:07,338 INFO L227 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 77.72% of their original sizes. [2019-11-06 22:54:07,338 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:54:07,426 INFO L553 sIntCurrentIteration]: We unified 212 AI predicates to 212 [2019-11-06 22:54:07,426 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:54:07,427 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:54:07,428 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 7, 8] total 25 [2019-11-06 22:54:07,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82681205] [2019-11-06 22:54:07,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:54:07,430 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:54:07,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 22:54:07,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-11-06 22:54:07,431 INFO L87 Difference]: Start difference. First operand 1924 states and 2563 transitions. Second operand 11 states. [2019-11-06 22:54:07,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:54:07,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:54:07,640 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: 7269#true or 8992#(or (and (<= 0 (+ main_~input~0 2147483648)) (= ~a2~0 1) (= (+ ~a4~0 89) 0) (<= (+ ~a0~0 217933) 0) (<= 0 (+ ~a0~0 517859)) (= (+ ~a29~0 401505) 0) (<= main_~input~0 2147483647)) (and (<= 0 (+ main_~input~0 2147483648)) (= ~a2~0 1) (= (+ ~a0~0 44) 0) (= (+ ~a4~0 89) 0) (<= main_~input~0 2147483647) (= (+ ~a29~0 127) 0))) ([#2{~a2~0 = [1;1]; ~a0~0 = [-44;-44]; ~a29~0 = [-127;-127]; main_~input~0 = [-2147483648;2147483647]; ~a4~0 = [-89;-89]; }, {~a2~0 = [1;1]; ~a0~0 = [-517859;-217933]; ~a29~0 = [-401505;-401505]; main_~input~0 = [-2147483648;2147483647]; ~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 22:54:07,647 INFO L168 Benchmark]: Toolchain (without parser) took 21295.71 ms. Allocated memory was 136.8 MB in the beginning and 770.2 MB in the end (delta: 633.3 MB). Free memory was 96.8 MB in the beginning and 96.9 MB in the end (delta: -78.0 kB). Peak memory consumption was 633.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:54:07,648 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:54:07,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1507.17 ms. Allocated memory was 136.8 MB in the beginning and 226.5 MB in the end (delta: 89.7 MB). Free memory was 96.4 MB in the beginning and 152.1 MB in the end (delta: -55.7 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:54:07,652 INFO L168 Benchmark]: Boogie Preprocessor took 182.02 ms. Allocated memory is still 226.5 MB. Free memory was 152.1 MB in the beginning and 139.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:54:07,654 INFO L168 Benchmark]: RCFGBuilder took 3202.03 ms. Allocated memory was 226.5 MB in the beginning and 270.5 MB in the end (delta: 44.0 MB). Free memory was 139.7 MB in the beginning and 157.4 MB in the end (delta: -17.7 MB). Peak memory consumption was 103.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:54:07,661 INFO L168 Benchmark]: TraceAbstraction took 16399.82 ms. Allocated memory was 270.5 MB in the beginning and 770.2 MB in the end (delta: 499.6 MB). Free memory was 155.2 MB in the beginning and 96.9 MB in the end (delta: 58.3 MB). Peak memory consumption was 557.9 MB. Max. memory is 7.1 GB. [2019-11-06 22:54:07,675 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1507.17 ms. Allocated memory was 136.8 MB in the beginning and 226.5 MB in the end (delta: 89.7 MB). Free memory was 96.4 MB in the beginning and 152.1 MB in the end (delta: -55.7 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.02 ms. Allocated memory is still 226.5 MB. Free memory was 152.1 MB in the beginning and 139.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3202.03 ms. Allocated memory was 226.5 MB in the beginning and 270.5 MB in the end (delta: 44.0 MB). Free memory was 139.7 MB in the beginning and 157.4 MB in the end (delta: -17.7 MB). Peak memory consumption was 103.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16399.82 ms. Allocated memory was 270.5 MB in the beginning and 770.2 MB in the end (delta: 499.6 MB). Free memory was 155.2 MB in the beginning and 96.9 MB in the end (delta: 58.3 MB). Peak memory consumption was 557.9 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: 7269#true or 8992#(or (and (<= 0 (+ main_~input~0 2147483648)) (= ~a2~0 1) (= (+ ~a4~0 89) 0) (<= (+ ~a0~0 217933) 0) (<= 0 (+ ~a0~0 517859)) (= (+ ~a29~0 401505) 0) (<= main_~input~0 2147483647)) (and (<= 0 (+ main_~input~0 2147483648)) (= ~a2~0 1) (= (+ ~a0~0 44) 0) (= (+ ~a4~0 89) 0) (<= main_~input~0 2147483647) (= (+ ~a29~0 127) 0))) ([#2{~a2~0 = [1;1]; ~a0~0 = [-44;-44]; ~a29~0 = [-127;-127]; main_~input~0 = [-2147483648;2147483647]; ~a4~0 = [-89;-89]; }, {~a2~0 = [1;1]; ~a0~0 = [-517859;-217933]; ~a29~0 = [-401505;-401505]; main_~input~0 = [-2147483648;2147483647]; ~a4~0 = [-89;-89]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 7269#true or 8992#(or (and (<= 0 (+ main_~input~0 2147483648)) (= ~a2~0 1) (= (+ ~a4~0 89) 0) (<= (+ ~a0~0 217933) 0) (<= 0 (+ ~a0~0 517859)) (= (+ ~a29~0 401505) 0) (<= main_~input~0 2147483647)) (and (<= 0 (+ main_~input~0 2147483648)) (= ~a2~0 1) (= (+ ~a0~0 44) 0) (= (+ ~a4~0 89) 0) (<= main_~input~0 2147483647) (= (+ ~a29~0 127) 0))) ([#2{~a2~0 = [1;1]; ~a0~0 = [-44;-44]; ~a29~0 = [-127;-127]; main_~input~0 = [-2147483648;2147483647]; ~a4~0 = [-89;-89]; }, {~a2~0 = [1;1]; ~a0~0 = [-517859;-217933]; ~a29~0 = [-401505;-401505]; main_~input~0 = [-2147483648;2147483647]; ~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...