/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:20:05,670 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 20:20:05,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:20:05,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:20:05,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:20:05,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 20:20:05,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:20:05,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:20:05,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:20:05,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:20:05,836 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:20:05,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:20:05,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:20:05,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:20:05,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:20:05,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:20:05,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:20:05,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:20:05,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:20:05,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:20:05,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:20:05,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:20:05,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:20:05,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:20:05,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:20:05,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:20:05,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:20:05,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:20:05,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:20:05,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:20:05,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:20:05,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:20:05,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:20:05,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:20:05,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:20:05,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:20:06,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:20:06,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:20:06,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:20:06,190 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:20:06,190 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:20:06,191 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-08-18 20:20:06,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/114d5b504/da6ca9499336458f9be58f3256301d70/FLAG231d7ba7b [2020-08-18 20:20:06,815 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:20:06,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-08-18 20:20:06,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/114d5b504/da6ca9499336458f9be58f3256301d70/FLAG231d7ba7b [2020-08-18 20:20:07,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/114d5b504/da6ca9499336458f9be58f3256301d70 [2020-08-18 20:20:07,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:20:07,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:20:07,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:20:07,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:20:07,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:20:07,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a03cc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07, skipping insertion in model container [2020-08-18 20:20:07,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:20:07,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:20:07,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:20:07,598 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:20:07,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:20:07,827 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:20:07,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07 WrapperNode [2020-08-18 20:20:07,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:20:07,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:20:07,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:20:07,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:20:07,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... [2020-08-18 20:20:07,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:20:07,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:20:07,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:20:07,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:20:07,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 20:20:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:20:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:20:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 20:20:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:20:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 20:20:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:20:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:20:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 20:20:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:20:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:20:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:20:09,216 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:20:09,217 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 20:20:09,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:20:09 BoogieIcfgContainer [2020-08-18 20:20:09,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:20:09,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:20:09,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:20:09,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:20:09,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:20:07" (1/3) ... [2020-08-18 20:20:09,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23613d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:20:09, skipping insertion in model container [2020-08-18 20:20:09,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:20:07" (2/3) ... [2020-08-18 20:20:09,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23613d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:20:09, skipping insertion in model container [2020-08-18 20:20:09,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:20:09" (3/3) ... [2020-08-18 20:20:09,233 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label11.c [2020-08-18 20:20:09,244 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:20:09,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:20:09,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:20:09,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:20:09,293 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:20:09,293 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:20:09,293 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:20:09,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:20:09,294 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:20:09,294 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:20:09,294 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:20:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-18 20:20:09,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-08-18 20:20:09,332 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:09,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:20:09,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:09,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:09,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1377016033, now seen corresponding path program 1 times [2020-08-18 20:20:09,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:09,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537691807] [2020-08-18 20:20:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:09,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:20:09,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537691807] [2020-08-18 20:20:09,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:20:09,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 20:20:09,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774396955] [2020-08-18 20:20:10,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 20:20:10,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:10,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 20:20:10,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:20:10,031 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-18 20:20:12,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:12,186 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-18 20:20:12,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 20:20:12,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-08-18 20:20:12,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:12,211 INFO L225 Difference]: With dead ends: 698 [2020-08-18 20:20:12,212 INFO L226 Difference]: Without dead ends: 423 [2020-08-18 20:20:12,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:20:12,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-18 20:20:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-18 20:20:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-18 20:20:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 603 transitions. [2020-08-18 20:20:12,305 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 603 transitions. Word has length 115 [2020-08-18 20:20:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:12,305 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 603 transitions. [2020-08-18 20:20:12,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 20:20:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 603 transitions. [2020-08-18 20:20:12,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-18 20:20:12,318 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:12,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:20:12,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:20:12,319 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:12,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:12,319 INFO L82 PathProgramCache]: Analyzing trace with hash 508544498, now seen corresponding path program 1 times [2020-08-18 20:20:12,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:12,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250404370] [2020-08-18 20:20:12,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:12,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:12,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:20:12,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250404370] [2020-08-18 20:20:12,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:12,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 20:20:12,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970954986] [2020-08-18 20:20:12,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 20:20:12,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:12,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 20:20:12,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 20:20:12,633 INFO L87 Difference]: Start difference. First operand 417 states and 603 transitions. Second operand 6 states. [2020-08-18 20:20:14,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:14,213 INFO L93 Difference]: Finished difference Result 1519 states and 2242 transitions. [2020-08-18 20:20:14,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 20:20:14,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-08-18 20:20:14,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:14,223 INFO L225 Difference]: With dead ends: 1519 [2020-08-18 20:20:14,223 INFO L226 Difference]: Without dead ends: 1108 [2020-08-18 20:20:14,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:20:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-08-18 20:20:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 695. [2020-08-18 20:20:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-18 20:20:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 992 transitions. [2020-08-18 20:20:14,289 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 992 transitions. Word has length 132 [2020-08-18 20:20:14,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:14,290 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 992 transitions. [2020-08-18 20:20:14,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 20:20:14,291 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 992 transitions. [2020-08-18 20:20:14,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-18 20:20:14,297 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:14,297 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:20:14,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:20:14,297 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:14,298 INFO L82 PathProgramCache]: Analyzing trace with hash -469327528, now seen corresponding path program 1 times [2020-08-18 20:20:14,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:14,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128370197] [2020-08-18 20:20:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:14,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:14,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:20:14,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128370197] [2020-08-18 20:20:14,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:14,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 20:20:14,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2822048] [2020-08-18 20:20:14,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 20:20:14,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:14,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 20:20:14,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:20:14,594 INFO L87 Difference]: Start difference. First operand 695 states and 992 transitions. Second operand 5 states. [2020-08-18 20:20:15,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:15,723 INFO L93 Difference]: Finished difference Result 2077 states and 3027 transitions. [2020-08-18 20:20:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 20:20:15,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-08-18 20:20:15,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:15,738 INFO L225 Difference]: With dead ends: 2077 [2020-08-18 20:20:15,738 INFO L226 Difference]: Without dead ends: 1388 [2020-08-18 20:20:15,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 20:20:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-08-18 20:20:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1106. [2020-08-18 20:20:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-08-18 20:20:15,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1479 transitions. [2020-08-18 20:20:15,825 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1479 transitions. Word has length 149 [2020-08-18 20:20:15,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:15,827 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1479 transitions. [2020-08-18 20:20:15,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 20:20:15,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1479 transitions. [2020-08-18 20:20:15,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-18 20:20:15,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:15,836 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, 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] [2020-08-18 20:20:15,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:20:15,837 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:15,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:15,837 INFO L82 PathProgramCache]: Analyzing trace with hash -425921661, now seen corresponding path program 1 times [2020-08-18 20:20:15,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:15,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437842534] [2020-08-18 20:20:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:15,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:16,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:16,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 20:20:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:16,100 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:20:16,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437842534] [2020-08-18 20:20:16,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:16,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:20:16,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841917484] [2020-08-18 20:20:16,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:20:16,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:16,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:20:16,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:20:16,103 INFO L87 Difference]: Start difference. First operand 1106 states and 1479 transitions. Second operand 7 states. [2020-08-18 20:20:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:17,417 INFO L93 Difference]: Finished difference Result 2520 states and 3457 transitions. [2020-08-18 20:20:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 20:20:17,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-08-18 20:20:17,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:17,429 INFO L225 Difference]: With dead ends: 2520 [2020-08-18 20:20:17,430 INFO L226 Difference]: Without dead ends: 1420 [2020-08-18 20:20:17,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:20:17,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-08-18 20:20:17,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1116. [2020-08-18 20:20:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-08-18 20:20:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1466 transitions. [2020-08-18 20:20:17,491 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1466 transitions. Word has length 171 [2020-08-18 20:20:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:17,492 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1466 transitions. [2020-08-18 20:20:17,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:20:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1466 transitions. [2020-08-18 20:20:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-08-18 20:20:17,497 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:17,497 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:20:17,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:20:17,498 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:17,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:17,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1098584007, now seen corresponding path program 1 times [2020-08-18 20:20:17,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:17,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989132838] [2020-08-18 20:20:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:17,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:17,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 20:20:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:17,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 20:20:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:17,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 20:20:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 104 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-08-18 20:20:17,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989132838] [2020-08-18 20:20:17,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:17,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:20:17,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752544605] [2020-08-18 20:20:17,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:20:17,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:17,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:20:17,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:20:17,823 INFO L87 Difference]: Start difference. First operand 1116 states and 1466 transitions. Second operand 7 states. [2020-08-18 20:20:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:19,222 INFO L93 Difference]: Finished difference Result 2971 states and 3993 transitions. [2020-08-18 20:20:19,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 20:20:19,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-08-18 20:20:19,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:19,234 INFO L225 Difference]: With dead ends: 2971 [2020-08-18 20:20:19,234 INFO L226 Difference]: Without dead ends: 1861 [2020-08-18 20:20:19,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:20:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2020-08-18 20:20:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1561. [2020-08-18 20:20:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2020-08-18 20:20:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1997 transitions. [2020-08-18 20:20:19,304 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1997 transitions. Word has length 215 [2020-08-18 20:20:19,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:19,305 INFO L479 AbstractCegarLoop]: Abstraction has 1561 states and 1997 transitions. [2020-08-18 20:20:19,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:20:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1997 transitions. [2020-08-18 20:20:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-08-18 20:20:19,312 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:19,312 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-08-18 20:20:19,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:20:19,312 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:19,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:19,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1678805504, now seen corresponding path program 1 times [2020-08-18 20:20:19,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:19,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679756798] [2020-08-18 20:20:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:20:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 20:20:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 20:20:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 20:20:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 125 proven. 60 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-08-18 20:20:19,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679756798] [2020-08-18 20:20:19,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:19,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:20:19,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406341764] [2020-08-18 20:20:19,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:20:19,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:19,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:20:19,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:20:19,666 INFO L87 Difference]: Start difference. First operand 1561 states and 1997 transitions. Second operand 7 states. [2020-08-18 20:20:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:20,976 INFO L93 Difference]: Finished difference Result 4288 states and 5737 transitions. [2020-08-18 20:20:20,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:20:20,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-08-18 20:20:20,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:20,990 INFO L225 Difference]: With dead ends: 4288 [2020-08-18 20:20:20,991 INFO L226 Difference]: Without dead ends: 2733 [2020-08-18 20:20:20,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:20:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2020-08-18 20:20:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2562. [2020-08-18 20:20:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2020-08-18 20:20:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3291 transitions. [2020-08-18 20:20:21,080 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3291 transitions. Word has length 238 [2020-08-18 20:20:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:21,081 INFO L479 AbstractCegarLoop]: Abstraction has 2562 states and 3291 transitions. [2020-08-18 20:20:21,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:20:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3291 transitions. [2020-08-18 20:20:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-18 20:20:21,091 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:21,091 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-08-18 20:20:21,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 20:20:21,092 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:21,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:21,092 INFO L82 PathProgramCache]: Analyzing trace with hash 322431195, now seen corresponding path program 1 times [2020-08-18 20:20:21,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:21,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765425595] [2020-08-18 20:20:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:21,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:21,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:21,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 20:20:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 20:20:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:21,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 20:20:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 130 proven. 26 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-18 20:20:21,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765425595] [2020-08-18 20:20:21,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:21,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:20:21,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906795789] [2020-08-18 20:20:21,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:20:21,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:21,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:20:21,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:20:21,354 INFO L87 Difference]: Start difference. First operand 2562 states and 3291 transitions. Second operand 7 states. [2020-08-18 20:20:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:22,908 INFO L93 Difference]: Finished difference Result 6093 states and 7898 transitions. [2020-08-18 20:20:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 20:20:22,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-08-18 20:20:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:22,928 INFO L225 Difference]: With dead ends: 6093 [2020-08-18 20:20:22,928 INFO L226 Difference]: Without dead ends: 3537 [2020-08-18 20:20:22,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:20:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2020-08-18 20:20:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3531. [2020-08-18 20:20:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3531 states. [2020-08-18 20:20:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 4406 transitions. [2020-08-18 20:20:23,048 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 4406 transitions. Word has length 237 [2020-08-18 20:20:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:23,048 INFO L479 AbstractCegarLoop]: Abstraction has 3531 states and 4406 transitions. [2020-08-18 20:20:23,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:20:23,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 4406 transitions. [2020-08-18 20:20:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-18 20:20:23,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:23,061 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 20:20:23,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 20:20:23,062 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:23,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:23,062 INFO L82 PathProgramCache]: Analyzing trace with hash 255004558, now seen corresponding path program 1 times [2020-08-18 20:20:23,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:23,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945432857] [2020-08-18 20:20:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-18 20:20:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 20:20:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 20:20:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 20:20:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:23,428 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 172 proven. 82 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-08-18 20:20:23,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945432857] [2020-08-18 20:20:23,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:23,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:20:23,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778932396] [2020-08-18 20:20:23,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:20:23,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:23,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:20:23,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:20:23,431 INFO L87 Difference]: Start difference. First operand 3531 states and 4406 transitions. Second operand 7 states. [2020-08-18 20:20:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:24,973 INFO L93 Difference]: Finished difference Result 7481 states and 9433 transitions. [2020-08-18 20:20:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 20:20:24,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-08-18 20:20:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:24,992 INFO L225 Difference]: With dead ends: 7481 [2020-08-18 20:20:24,992 INFO L226 Difference]: Without dead ends: 3956 [2020-08-18 20:20:25,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:20:25,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2020-08-18 20:20:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3950. [2020-08-18 20:20:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2020-08-18 20:20:25,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 4873 transitions. [2020-08-18 20:20:25,101 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 4873 transitions. Word has length 274 [2020-08-18 20:20:25,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:25,102 INFO L479 AbstractCegarLoop]: Abstraction has 3950 states and 4873 transitions. [2020-08-18 20:20:25,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:20:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 4873 transitions. [2020-08-18 20:20:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-08-18 20:20:25,120 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:20:25,120 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 20:20:25,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 20:20:25,121 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:20:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:20:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash 367016682, now seen corresponding path program 1 times [2020-08-18 20:20:25,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:20:25,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677718466] [2020-08-18 20:20:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:20:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:20:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:20:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 20:20:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 20:20:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 20:20:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-18 20:20:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:20:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 197 proven. 85 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-08-18 20:20:25,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677718466] [2020-08-18 20:20:25,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:20:25,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 20:20:25,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851856103] [2020-08-18 20:20:25,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 20:20:25,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:20:25,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 20:20:25,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:20:25,481 INFO L87 Difference]: Start difference. First operand 3950 states and 4873 transitions. Second operand 9 states. [2020-08-18 20:20:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:20:29,818 INFO L93 Difference]: Finished difference Result 10546 states and 13498 transitions. [2020-08-18 20:20:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-18 20:20:29,819 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 288 [2020-08-18 20:20:29,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:20:29,819 INFO L225 Difference]: With dead ends: 10546 [2020-08-18 20:20:29,819 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 20:20:29,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-18 20:20:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 20:20:29,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 20:20:29,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 20:20:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 20:20:29,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 288 [2020-08-18 20:20:29,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:20:29,843 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 20:20:29,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 20:20:29,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 20:20:29,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 20:20:29,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 20:20:29,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 20:20:31,228 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 122 [2020-08-18 20:20:31,434 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 122 [2020-08-18 20:20:32,437 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 61 [2020-08-18 20:20:32,746 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2020-08-18 20:20:33,018 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2020-08-18 20:20:33,023 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:20:33,023 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-18 20:20:33,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:20:33,024 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-18 20:20:33,024 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-18 20:20:33,024 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,024 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,025 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,025 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,025 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,025 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,025 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-18 20:20:33,026 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-18 20:20:33,027 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-18 20:20:33,028 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-18 20:20:33,029 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-18 20:20:33,030 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-18 20:20:33,031 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,032 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-18 20:20:33,033 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-18 20:20:33,034 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-18 20:20:33,035 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-18 20:20:33,036 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,037 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-18 20:20:33,038 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse8 (= ~a21~0 1)) (.cse5 (= 5 ~a16~0)) (.cse6 (not (= 5 |old(~a16~0)|))) (.cse13 (= ~a17~0 1)) (.cse12 (not (= |old(~a17~0)| 1))) (.cse9 (not (<= |old(~a7~0)| 0))) (.cse10 (not (= |old(~a20~0)| 1))) (.cse14 (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4)) (.cse7 (not (= |old(~a21~0)| 1)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7) (or (and .cse1 .cse0 .cse8 .cse3 .cse4 (= ~a16~0 4)) .cse9 .cse10 .cse7 (not (= 4 |old(~a16~0)|))) (or .cse9 (not (= 6 |old(~a16~0)|)) .cse10 (and .cse1 .cse0 .cse8 .cse3 .cse11 .cse4) .cse7) (or .cse12 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse13) .cse6) (or .cse14 (= 14 |old(~a8~0)|)) (or (and .cse1 .cse2 .cse3 .cse11 .cse4 .cse13) .cse12 .cse9 .cse10 .cse7) (or .cse14 .cse7 (not (<= |old(~a20~0)| 0)))))) [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,039 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-18 20:20:33,040 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-18 20:20:33,041 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-18 20:20:33,042 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,043 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-18 20:20:33,044 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-18 20:20:33,045 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-18 20:20:33,045 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-18 20:20:33,045 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-18 20:20:33,045 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:20:33,045 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-18 20:20:33,045 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 20:20:33,045 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:20:33,045 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-18 20:20:33,046 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-18 20:20:33,046 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 14 ~a8~0)) (and .cse1 (= ~a17~0 1)) (and .cse0 (= ~a16~0 6) .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse2 .cse3 (= ~a16~0 4)) (not (= |old(~a21~0)| 1)))) [2020-08-18 20:20:33,046 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-18 20:20:33,046 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-18 20:20:33,046 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 14 ~a8~0)) (and .cse1 (= ~a17~0 1)) (and .cse0 (= ~a16~0 6) .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse2 .cse3 (= ~a16~0 4)) (not (= |old(~a21~0)| 1)))) [2020-08-18 20:20:33,046 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-18 20:20:33,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:20:33 BoogieIcfgContainer [2020-08-18 20:20:33,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:20:33,071 INFO L168 Benchmark]: Toolchain (without parser) took 26014.92 ms. Allocated memory was 144.2 MB in the beginning and 565.7 MB in the end (delta: 421.5 MB). Free memory was 105.8 MB in the beginning and 365.4 MB in the end (delta: -259.6 MB). Peak memory consumption was 439.5 MB. Max. memory is 7.1 GB. [2020-08-18 20:20:33,072 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.2 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 20:20:33,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.21 ms. Allocated memory was 144.2 MB in the beginning and 207.6 MB in the end (delta: 63.4 MB). Free memory was 105.6 MB in the beginning and 174.2 MB in the end (delta: -68.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-08-18 20:20:33,074 INFO L168 Benchmark]: Boogie Preprocessor took 135.56 ms. Allocated memory is still 207.6 MB. Free memory was 174.2 MB in the beginning and 169.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-08-18 20:20:33,075 INFO L168 Benchmark]: RCFGBuilder took 1258.25 ms. Allocated memory was 207.6 MB in the beginning and 233.8 MB in the end (delta: 26.2 MB). Free memory was 169.0 MB in the beginning and 169.4 MB in the end (delta: -424.8 kB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2020-08-18 20:20:33,075 INFO L168 Benchmark]: TraceAbstraction took 23844.00 ms. Allocated memory was 233.8 MB in the beginning and 565.7 MB in the end (delta: 331.9 MB). Free memory was 168.1 MB in the beginning and 365.4 MB in the end (delta: -197.3 MB). Peak memory consumption was 412.2 MB. Max. memory is 7.1 GB. [2020-08-18 20:20:33,079 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 144.2 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.21 ms. Allocated memory was 144.2 MB in the beginning and 207.6 MB in the end (delta: 63.4 MB). Free memory was 105.6 MB in the beginning and 174.2 MB in the end (delta: -68.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.56 ms. Allocated memory is still 207.6 MB. Free memory was 174.2 MB in the beginning and 169.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1258.25 ms. Allocated memory was 207.6 MB in the beginning and 233.8 MB in the end (delta: 26.2 MB). Free memory was 169.0 MB in the beginning and 169.4 MB in the end (delta: -424.8 kB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23844.00 ms. Allocated memory was 233.8 MB in the beginning and 565.7 MB in the end (delta: 331.9 MB). Free memory was 168.1 MB in the beginning and 365.4 MB in the end (delta: -197.3 MB). Peak memory consumption was 412.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 503]: 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: (((((((((((a21 == 1 && 5 == a16) || !(\old(a17) == 1)) || (a21 == 1 && a20 <= 0)) || !(\old(a7) <= 0)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || !(14 == a8)) || (5 == a16 && a17 == 1)) || (((a21 == 1 && a16 == 6) && a7 <= 0) && a20 == 1)) || !(5 == \old(a16))) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a16 == 4)) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.5s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 4517 SDslu, 416 SDs, 0 SdLazy, 9063 SolverSat, 1771 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3950occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1488 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 189 PreInvPairs, 343 NumberOfFragments, 490 HoareAnnotationTreeSize, 189 FomulaSimplifications, 241377 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8571 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1819 NumberOfCodeBlocks, 1819 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1810 ConstructedInterpolants, 0 QuantifiedInterpolants, 866385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 1295/1578 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...