/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:22:11,916 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-19 23:22:12,006 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 [2020-07-19 23:22:12,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:22:12,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:22:12,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:22:12,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:22:12,023 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:22:12,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:22:12,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:22:12,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:22:12,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:22:12,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:22:12,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:22:12,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:22:12,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:22:12,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:22:12,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:22:12,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:22:12,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:22:12,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:22:12,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:22:12,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:22:12,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:22:12,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:22:12,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:22:12,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:22:12,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:22:12,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:22:12,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:22:12,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:22:12,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:22:12,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:22:12,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:22:12,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:22:12,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:22:12,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:22:12,353 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:22:12,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-19 23:22:12,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83d3ec48/4bcc7cadc28e468a8bc44be647185012/FLAGdc4300e1c [2020-07-19 23:22:13,016 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:22:13,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-19 23:22:13,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83d3ec48/4bcc7cadc28e468a8bc44be647185012/FLAGdc4300e1c [2020-07-19 23:22:13,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83d3ec48/4bcc7cadc28e468a8bc44be647185012 [2020-07-19 23:22:13,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:22:13,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:22:13,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:22:13,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:22:13,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:22:13,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:22:13" (1/1) ... [2020-07-19 23:22:13,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cee31c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:13, skipping insertion in model container [2020-07-19 23:22:13,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:22:13" (1/1) ... [2020-07-19 23:22:13,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:22:13,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:22:13,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:22:13,751 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:22:13,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:22:14,015 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:22:14,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14 WrapperNode [2020-07-19 23:22:14,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:22:14,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:22:14,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:22:14,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:22:14,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... [2020-07-19 23:22:14,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:22:14,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:22:14,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:22:14,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:22:14,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:22:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:22:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:22:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 23:22:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:22:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 23:22:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:22:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:22:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:22:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:22:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:22:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:22:15,371 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:22:15,371 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:22:15,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:22:15 BoogieIcfgContainer [2020-07-19 23:22:15,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:22:15,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:22:15,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:22:15,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:22:15,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:22:13" (1/3) ... [2020-07-19 23:22:15,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12de2a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:22:15, skipping insertion in model container [2020-07-19 23:22:15,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:14" (2/3) ... [2020-07-19 23:22:15,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12de2a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:22:15, skipping insertion in model container [2020-07-19 23:22:15,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:22:15" (3/3) ... [2020-07-19 23:22:15,387 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-07-19 23:22:15,400 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:22:15,410 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:22:15,428 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:22:15,460 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:22:15,461 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:22:15,461 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:22:15,461 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:22:15,462 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:22:15,462 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:22:15,462 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:22:15,462 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:22:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-19 23:22:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-19 23:22:15,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:15,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:15,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:15,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-07-19 23:22:15,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:15,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823827032] [2020-07-19 23:22:15,529 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:16,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:16,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823827032] [2020-07-19 23:22:16,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:22:16,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:22:16,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51255934] [2020-07-19 23:22:16,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:22:16,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:16,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:22:16,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:22:16,120 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-19 23:22:17,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:17,632 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-07-19 23:22:17,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 23:22:17,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-07-19 23:22:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:17,651 INFO L225 Difference]: With dead ends: 557 [2020-07-19 23:22:17,651 INFO L226 Difference]: Without dead ends: 286 [2020-07-19 23:22:17,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:22:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-07-19 23:22:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-07-19 23:22:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-19 23:22:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-07-19 23:22:17,755 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 100 [2020-07-19 23:22:17,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:17,758 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-07-19 23:22:17,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:22:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-07-19 23:22:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-19 23:22:17,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:17,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:17,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:22:17,776 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:17,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:17,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2020-07-19 23:22:17,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:17,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262361534] [2020-07-19 23:22:17,777 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:18,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262361534] [2020-07-19 23:22:18,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:22:18,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:22:18,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182246240] [2020-07-19 23:22:18,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:22:18,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:18,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:22:18,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:22:18,057 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-07-19 23:22:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:19,455 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-07-19 23:22:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:22:19,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-07-19 23:22:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:19,462 INFO L225 Difference]: With dead ends: 713 [2020-07-19 23:22:19,462 INFO L226 Difference]: Without dead ends: 439 [2020-07-19 23:22:19,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-19 23:22:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-07-19 23:22:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-07-19 23:22:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-07-19 23:22:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-07-19 23:22:19,510 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 110 [2020-07-19 23:22:19,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:19,510 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-07-19 23:22:19,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:22:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-07-19 23:22:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-19 23:22:19,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:19,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:19,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:22:19,513 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:19,514 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-07-19 23:22:19,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:19,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247950868] [2020-07-19 23:22:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:19,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247950868] [2020-07-19 23:22:19,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599984315] [2020-07-19 23:22:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@591ae3ec 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 [2020-07-19 23:22:19,992 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@591ae3ec issued 4 check-sat command(s) [2020-07-19 23:22:19,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:19,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 23:22:20,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:20,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:22:20,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-07-19 23:22:20,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402153338] [2020-07-19 23:22:20,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:22:20,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:20,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:22:20,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:22:20,056 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 3 states. [2020-07-19 23:22:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:20,650 INFO L93 Difference]: Finished difference Result 1247 states and 1787 transitions. [2020-07-19 23:22:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:22:20,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-19 23:22:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:20,661 INFO L225 Difference]: With dead ends: 1247 [2020-07-19 23:22:20,661 INFO L226 Difference]: Without dead ends: 832 [2020-07-19 23:22:20,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:22:20,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-07-19 23:22:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2020-07-19 23:22:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-07-19 23:22:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1144 transitions. [2020-07-19 23:22:20,730 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1144 transitions. Word has length 111 [2020-07-19 23:22:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:20,731 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1144 transitions. [2020-07-19 23:22:20,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:22:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1144 transitions. [2020-07-19 23:22:20,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-19 23:22:20,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:20,734 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:20,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:22:20,950 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:20,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1258087941, now seen corresponding path program 1 times [2020-07-19 23:22:20,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:20,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903220990] [2020-07-19 23:22:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:21,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903220990] [2020-07-19 23:22:21,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:22:21,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:22:21,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932112318] [2020-07-19 23:22:21,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:22:21,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:21,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:22:21,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:22:21,134 INFO L87 Difference]: Start difference. First operand 832 states and 1144 transitions. Second operand 8 states. [2020-07-19 23:22:22,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:22,983 INFO L93 Difference]: Finished difference Result 2808 states and 4147 transitions. [2020-07-19 23:22:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:22:22,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-07-19 23:22:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:22,999 INFO L225 Difference]: With dead ends: 2808 [2020-07-19 23:22:22,999 INFO L226 Difference]: Without dead ends: 1982 [2020-07-19 23:22:23,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:22:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-07-19 23:22:23,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1543. [2020-07-19 23:22:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2020-07-19 23:22:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2052 transitions. [2020-07-19 23:22:23,081 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2052 transitions. Word has length 125 [2020-07-19 23:22:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:23,082 INFO L479 AbstractCegarLoop]: Abstraction has 1543 states and 2052 transitions. [2020-07-19 23:22:23,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:22:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2052 transitions. [2020-07-19 23:22:23,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-19 23:22:23,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:23,087 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:23,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 23:22:23,088 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:23,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:23,088 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2020-07-19 23:22:23,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:23,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921852432] [2020-07-19 23:22:23,089 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:22:23,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921852432] [2020-07-19 23:22:23,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373777236] [2020-07-19 23:22:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ec4e7e5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:23,392 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ec4e7e5 issued 4 check-sat command(s) [2020-07-19 23:22:23,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:23,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 23:22:23,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:23,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:23,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-19 23:22:23,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053846307] [2020-07-19 23:22:23,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:22:23,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:23,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:22:23,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:22:23,435 INFO L87 Difference]: Start difference. First operand 1543 states and 2052 transitions. Second operand 8 states. [2020-07-19 23:22:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:24,749 INFO L93 Difference]: Finished difference Result 3541 states and 4910 transitions. [2020-07-19 23:22:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:22:24,753 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-07-19 23:22:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:24,769 INFO L225 Difference]: With dead ends: 3541 [2020-07-19 23:22:24,769 INFO L226 Difference]: Without dead ends: 2004 [2020-07-19 23:22:24,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:22:24,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2020-07-19 23:22:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1684. [2020-07-19 23:22:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-07-19 23:22:24,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2237 transitions. [2020-07-19 23:22:24,874 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2237 transitions. Word has length 142 [2020-07-19 23:22:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:24,876 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 2237 transitions. [2020-07-19 23:22:24,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:22:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2237 transitions. [2020-07-19 23:22:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-19 23:22:24,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:24,883 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:25,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:25,097 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:25,097 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2020-07-19 23:22:25,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:25,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267393182] [2020-07-19 23:22:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:22:25,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267393182] [2020-07-19 23:22:25,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887788685] [2020-07-19 23:22:25,297 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1eb9ebab No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:25,457 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1eb9ebab issued 4 check-sat command(s) [2020-07-19 23:22:25,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:25,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:22:25,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 23:22:25,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:25,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 23:22:25,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496585669] [2020-07-19 23:22:25,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:22:25,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:25,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:22:25,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:22:25,573 INFO L87 Difference]: Start difference. First operand 1684 states and 2237 transitions. Second operand 9 states. [2020-07-19 23:22:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:28,182 INFO L93 Difference]: Finished difference Result 3992 states and 5524 transitions. [2020-07-19 23:22:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-19 23:22:28,183 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-07-19 23:22:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:28,197 INFO L225 Difference]: With dead ends: 3992 [2020-07-19 23:22:28,197 INFO L226 Difference]: Without dead ends: 2314 [2020-07-19 23:22:28,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-07-19 23:22:28,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2020-07-19 23:22:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1708. [2020-07-19 23:22:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1708 states. [2020-07-19 23:22:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2121 transitions. [2020-07-19 23:22:28,271 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2121 transitions. Word has length 146 [2020-07-19 23:22:28,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:28,271 INFO L479 AbstractCegarLoop]: Abstraction has 1708 states and 2121 transitions. [2020-07-19 23:22:28,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:22:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2121 transitions. [2020-07-19 23:22:28,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-19 23:22:28,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:28,277 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:28,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:28,492 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:28,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:28,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1440991952, now seen corresponding path program 1 times [2020-07-19 23:22:28,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:28,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267430077] [2020-07-19 23:22:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:22:28,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267430077] [2020-07-19 23:22:28,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280482459] [2020-07-19 23:22:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79caed67 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:28,861 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79caed67 issued 4 check-sat command(s) [2020-07-19 23:22:28,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:28,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 23:22:28,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 23:22:28,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:28,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 23:22:28,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84723284] [2020-07-19 23:22:28,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:22:28,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:28,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:22:28,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:22:28,974 INFO L87 Difference]: Start difference. First operand 1708 states and 2121 transitions. Second operand 9 states. [2020-07-19 23:22:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:32,136 INFO L93 Difference]: Finished difference Result 5639 states and 7677 transitions. [2020-07-19 23:22:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-19 23:22:32,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2020-07-19 23:22:32,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:32,166 INFO L225 Difference]: With dead ends: 5639 [2020-07-19 23:22:32,166 INFO L226 Difference]: Without dead ends: 3937 [2020-07-19 23:22:32,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-07-19 23:22:32,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2020-07-19 23:22:32,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3299. [2020-07-19 23:22:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3299 states. [2020-07-19 23:22:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4179 transitions. [2020-07-19 23:22:32,311 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4179 transitions. Word has length 166 [2020-07-19 23:22:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:32,312 INFO L479 AbstractCegarLoop]: Abstraction has 3299 states and 4179 transitions. [2020-07-19 23:22:32,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:22:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4179 transitions. [2020-07-19 23:22:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-19 23:22:32,328 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:32,328 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:32,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:32,542 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:32,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:32,542 INFO L82 PathProgramCache]: Analyzing trace with hash -648776304, now seen corresponding path program 1 times [2020-07-19 23:22:32,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:32,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454013407] [2020-07-19 23:22:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e659e4a [2020-07-19 23:22:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-19 23:22:32,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454013407] [2020-07-19 23:22:32,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124373379] [2020-07-19 23:22:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1dae0527 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:33,075 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1dae0527 issued 4 check-sat command(s) [2020-07-19 23:22:33,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:33,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:22:33,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 86 proven. 54 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-19 23:22:33,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:33,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 23:22:33,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191317320] [2020-07-19 23:22:33,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:22:33,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:33,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:22:33,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:22:33,168 INFO L87 Difference]: Start difference. First operand 3299 states and 4179 transitions. Second operand 9 states. [2020-07-19 23:22:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:36,978 INFO L93 Difference]: Finished difference Result 6832 states and 8795 transitions. [2020-07-19 23:22:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-19 23:22:36,979 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2020-07-19 23:22:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:36,980 INFO L225 Difference]: With dead ends: 6832 [2020-07-19 23:22:36,980 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:22:37,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-07-19 23:22:37,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:22:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:22:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:22:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:22:37,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-07-19 23:22:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:37,041 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:22:37,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:22:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:22:37,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:22:37,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:37,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:22:38,013 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 217 [2020-07-19 23:22:38,306 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 217 [2020-07-19 23:22:39,718 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-19 23:22:40,744 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 66 [2020-07-19 23:22:41,697 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 66 [2020-07-19 23:22:41,701 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:22:41,702 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-19 23:22:41,702 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:22:41,702 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-19 23:22:41,702 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-19 23:22:41,703 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,703 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,703 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,703 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,703 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-19 23:22:41,704 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,705 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-19 23:22:41,706 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-19 23:22:41,707 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-19 23:22:41,708 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,709 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-19 23:22:41,710 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-19 23:22:41,711 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-19 23:22:41,712 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,713 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-19 23:22:41,714 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-19 23:22:41,715 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-19 23:22:41,716 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,717 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-19 23:22:41,718 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-19 23:22:41,719 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-19 23:22:41,719 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= ~a7~0 |old(~a7~0)|)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse15 (= ~a16~0 |old(~a16~0)|)) (.cse16 (= ~a8~0 |old(~a8~0)|)) (.cse17 (= 1 ~a21~0)) (.cse18 (= ~a20~0 |old(~a20~0)|))) (let ((.cse4 (= 13 |old(~a8~0)|)) (.cse10 (not (= 1 |old(~a7~0)|))) (.cse9 (not (<= 15 |old(~a8~0)|))) (.cse6 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (.cse0 (not (<= |old(~a21~0)| 0))) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse2 (not (= 1 |old(~a17~0)|))) (.cse3 (and .cse13 .cse14 .cse15 .cse16 .cse18 (= ~a21~0 |old(~a21~0)|))) (.cse11 (not (= 1 |old(~a20~0)|))) (.cse5 (not (<= |old(~a7~0)| 0))) (.cse12 (not (<= 5 |old(~a16~0)|))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse8 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse6 .cse2 .cse7) (or .cse5 .cse1 .cse6 .cse7 .cse8) (or .cse9 .cse5 .cse6 .cse7 .cse8) (or .cse4 .cse10 .cse6 .cse1 .cse7 .cse8) (or .cse11 .cse10 .cse1 .cse6 .cse2 .cse7) (or .cse11 .cse0 .cse3 .cse8) (or .cse9 .cse5 .cse6 .cse2 .cse7) (or .cse0 .cse1 .cse3 .cse8) (or (and (or .cse11 .cse5 .cse2 .cse12 .cse7) (or .cse11 .cse5 .cse1 .cse2 .cse7)) .cse3) (or .cse11 .cse5 (and .cse13 .cse14 .cse15 .cse16 .cse17 (= 1 ~a20~0)) .cse12 .cse7 .cse8)))) [2020-07-19 23:22:41,719 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-19 23:22:41,719 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,719 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,719 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-19 23:22:41,720 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-19 23:22:41,721 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-19 23:22:41,722 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-19 23:22:41,723 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,724 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-19 23:22:41,725 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-19 23:22:41,726 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-19 23:22:41,726 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-19 23:22:41,726 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:22:41,726 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-19 23:22:41,726 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:22:41,726 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:22:41,726 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= 1 ~a20~0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-19 23:22:41,726 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-19 23:22:41,727 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse2 (not (= 13 ~a8~0))) (.cse6 (= 1 ~a20~0)) (.cse8 (<= 5 ~a16~0)) (.cse10 (<= 15 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse7 (<= ~a7~0 0)) (.cse4 (= 1 ~a21~0)) (.cse9 (<= ~a21~0 0)) (.cse3 (<= ~a16~0 5)) (.cse5 (= 1 ~a17~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse5 .cse4 .cse6) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse8 .cse5 .cse4 .cse6) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse7 .cse8 .cse4 .cse6) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse2 .cse3 .cse5 .cse4) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse1 .cse3) (and .cse9 .cse1 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse7 .cse8 .cse10 .cse4) (and .cse7 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse5 .cse8 .cse10 .cse4) (and .cse1 .cse7 .cse3 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse3 .cse5))) [2020-07-19 23:22:41,727 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-19 23:22:41,727 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-19 23:22:41,727 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse2 (not (= 13 ~a8~0))) (.cse6 (= 1 ~a20~0)) (.cse8 (<= 5 ~a16~0)) (.cse10 (<= 15 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse7 (<= ~a7~0 0)) (.cse4 (= 1 ~a21~0)) (.cse9 (<= ~a21~0 0)) (.cse3 (<= ~a16~0 5)) (.cse5 (= 1 ~a17~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse5 .cse4 .cse6) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse8 .cse5 .cse4 .cse6) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse7 .cse8 .cse4 .cse6) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse2 .cse3 .cse5 .cse4) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse1 .cse3) (and .cse9 .cse1 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse7 .cse8 .cse10 .cse4) (and .cse7 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse5 .cse8 .cse10 .cse4) (and .cse1 .cse7 .cse3 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse3 .cse5))) [2020-07-19 23:22:41,727 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-19 23:22:41,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:22:41 BoogieIcfgContainer [2020-07-19 23:22:41,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:22:41,772 INFO L168 Benchmark]: Toolchain (without parser) took 28488.01 ms. Allocated memory was 138.4 MB in the beginning and 567.3 MB in the end (delta: 428.9 MB). Free memory was 101.4 MB in the beginning and 406.5 MB in the end (delta: -305.0 MB). Peak memory consumption was 410.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:41,775 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-19 23:22:41,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.39 ms. Allocated memory was 138.4 MB in the beginning and 208.7 MB in the end (delta: 70.3 MB). Free memory was 101.0 MB in the beginning and 180.8 MB in the end (delta: -79.8 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:41,777 INFO L168 Benchmark]: Boogie Preprocessor took 101.79 ms. Allocated memory is still 208.7 MB. Free memory was 180.8 MB in the beginning and 175.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:41,778 INFO L168 Benchmark]: RCFGBuilder took 1259.34 ms. Allocated memory was 208.7 MB in the beginning and 241.2 MB in the end (delta: 32.5 MB). Free memory was 175.5 MB in the beginning and 190.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:41,780 INFO L168 Benchmark]: TraceAbstraction took 26386.41 ms. Allocated memory was 241.2 MB in the beginning and 567.3 MB in the end (delta: 326.1 MB). Free memory was 190.8 MB in the beginning and 406.5 MB in the end (delta: -215.7 MB). Peak memory consumption was 396.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:41,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.39 ms. Allocated memory was 138.4 MB in the beginning and 208.7 MB in the end (delta: 70.3 MB). Free memory was 101.0 MB in the beginning and 180.8 MB in the end (delta: -79.8 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.79 ms. Allocated memory is still 208.7 MB. Free memory was 180.8 MB in the beginning and 175.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1259.34 ms. Allocated memory was 208.7 MB in the beginning and 241.2 MB in the end (delta: 32.5 MB). Free memory was 175.5 MB in the beginning and 190.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26386.41 ms. Allocated memory was 241.2 MB in the beginning and 567.3 MB in the end (delta: 326.1 MB). Free memory was 190.8 MB in the beginning and 406.5 MB in the end (delta: -215.7 MB). Peak memory consumption was 396.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((1 == a7 && a17 <= 0) && !(13 == a8)) && a16 <= 5) && 1 == a21) || ((((1 == a7 && a16 <= 5) && 1 == a17) && 1 == a21) && 1 == a20)) || !(\old(a7) <= 0)) || ((((a7 <= 0 && 5 <= a16) && 1 == a17) && 1 == a21) && 1 == a20)) || !(1 == \old(a17))) || ((((a17 <= 0 && a7 <= 0) && 5 <= a16) && 1 == a21) && 1 == a20)) || !(5 <= \old(a16))) || ((((a7 <= 0 && !(13 == a8)) && a16 <= 5) && 1 == a17) && 1 == a21)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a21 <= 0 && a17 <= 0) && a16 <= 5)) || ((a21 <= 0 && a17 <= 0) && 1 == a20)) || !(\old(a16) <= 5)) || ((((a17 <= 0 && a7 <= 0) && 5 <= a16) && 15 <= a8) && 1 == a21)) || ((((a7 <= 0 && a16 <= 5) && 1 == a17) && 1 == a21) && 1 == a20)) || ((((a7 <= 0 && 1 == a17) && 5 <= a16) && 15 <= a8) && 1 == a21)) || (((a17 <= 0 && a7 <= 0) && a16 <= 5) && 1 == a21)) || !(1 == \old(a21))) || ((a21 <= 0 && a16 <= 5) && 1 == a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.7s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 4431 SDslu, 442 SDs, 0 SdLazy, 9044 SolverSat, 1875 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 831 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3299occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2027 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 172 NumberOfFragments, 959 HoareAnnotationTreeSize, 108 FomulaSimplifications, 289512 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 29901 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1873 NumberOfCodeBlocks, 1873 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1860 ConstructedInterpolants, 0 QuantifiedInterpolants, 702450 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2249 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 565/735 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...